polymerization

The surface initiated polymerization and its use for the formation of end grafted polymer films were reviewed.

The polymerization temperature of pitch is between the temperature of primary pyrolysis and that of secondary pyrolysis.

Polymerizable quaternary ammonium surfactants are easy to modify the materials through the polymerization reactions.

Premature polymerization during spacer placement can be prevented by an appropriate type and amount of inhibitor.

Sealing end reactions used for synthesizing radiation curing oligomers obtained by anionic polymerization were systematically reviewed.

Injection of C_3 polymerization inhibitor is one of the critical factors which guarantee the long-term operation of ethylene plant.

The polymerization of ethylene oxide was carried out with catalysts of many components whose main components were organometallic compounds.

Temperature, pressure, monomer conversion and copolymer composition could be considered states of a polymerization reactor.

Seeding polymerization was used for the modification of PVAc emulsion. The effects of emulsifier and acrylic ester were discussed.

After using this technology, the rubber quality was normal, the polymerization was more steady, and the catalyst amount decreased.

It was found that the fluorescence intensity of porphyrin decreased gradually with an increase in polymerization degree.

The grammar category is the significance aspect polymerization which expressed by the word change form.

In condensation polymerization, each monomer unit must have at least two functional groups.

The vehicle of environment friendly printing ink can be produced by the heat polymerization of plant oils.

The some performance of the catalyst is better than similar imported catalyst from characterization of polymerization in laboratory.

Taking polymerization kettle as an example , the concept of edge stress was introduced into failure analysis of pressure vessels.

and PVC resin in the polymerization of vinyl chloride monomer is not bad for human health, do not contain high-temperature food.

At least one ion type monomer or ion type macromolecular compound is added in the course of free radical polymerization.

Recently, living free radical polymerization is one of the fastest growing points in polymer chemistry.

A new process using suspension polymerization to produce a kind of phenolic resin modified by cashew oil and melamine were presented.

Through the RSS "subscription" ser-vices, information can be an effective and rapid polymerization update for learners.

The pour point reducer used for the Daqing 0# diesel oil was prepared by esterification, polymerization and acidization.

Depending upon reaction conditions, the product may be a polyketone formed by addition polymerization of the ketene double bond.

Ethylene slurry polymerization technology is the main method to produce PE. It has high demands on the performances of catalyst.

Under the effect of diethyl aluminium chloride, the catalyst of the invention can be used for catalyzing ethylene polymerization.

Supported catalyst component, supported catalyst, preparation process, polymerization process, complex compounds and their preparation.

At least one hydrophobic monomer is added in the free radical polymerization process.

As a new technique, miniemulsion polymerization owns its unique nucleation mechanism, emulsification system and polymerization process.

The majority of vinyl monomers can be used for free radical polymerization catalyst.

In a tower reactor polymerization may be carried out in two zones.

Suspension polymerization was used to prepare the toner. Dispersed spheric toner and smaller toner were obtained directly.

The number of monosaccharide units in a polysaccharide, termed its degree of polymerization (DP), varies.

Progress on research of novel doubly-bridged metallocenes and their application as catalysts used in olefin polymerization were reviewed.

MBS resin was synthesized by means of the grafting of styrene and MMA monomers on SBR in bulk polymerization.

Research on the polymerization conditions, polymer structure and color changing ranges of the films were carried out in detail.

Oil and chemical industry: polymerization, condensation, distillation, melting, dehydration, forced heat preservation.

The radiation thought and polymerization thought the two are unified, complement one another.

Sulphur-modified polychloroprene is produced by polymerization in the presence of a small amount of sulphur.

The system investigated are the solutions of monosilicic acid and poly silicic acids with different polymerization degrees.

It has shown that the polymerization process and amount of AMPS affect the polymerization stability greatly.

The material can be accomplished once during the polyester polymerization production process.

Let us consider the most simple reaction scheme for the radical propagated polymerization of a single monomer.

Some means in "application object classification" and "polymerization with morpheme words" research are very innovative and practical.

Atom Transfer Radical Polymerization (ATRP) is one of the most widely used method for controlled polymerization in labs.

both polymerization and isolation of products were achieved without using VOCs, offering economic as well as environmental advantages.

Laccase-catalyzed oxidative polymerization of 1-naphthol was carried out in a closed system containing acetone and sodium acetate buffer.

The results indicated that the slice resistance preparation of nanocomposites by ultrasonic intercalated polymerization was better.

The invention relates to a method for preparing ionic liquid type gel polymer electrolyte through home position polymerization.

after the polymerization being over, the obtained product can be processed with continual process.

Metallocene ligands, metallocene compounds and metallocene catalysts, their synthesis and their use for the polymerization of olefins.

Therefore, the oxidative polymerization of DMP to form PPO using water as the reaction medium would be of significance.

Pictures and texts are transferred to a plate, the exposure occurred on polymerization become chemonucleolysis area.

The polyformaldehyde production includes two processes: homopolymerization and co-polymerization.

TEXTILES. CELLULOSE. DETERMINATION OF LIMITING VISCOSITY NUMBER AND DETERMINATION OF THE AVERAGE VISCOSIMETRIC DEGREE OF POLYMERIZATION.

The invention relates to a novel method for preparing anti-settling luminous acrylic resin by in-situ polymerization technology.

Material: LDPE called high pressure polyethylene, be polyethylene in high-pressured condition polymerization generated substances.

The control of molecule weight is essential for practical application of a polymerization process.

Colored toner particles with small size, spherical form and narrow distribution was prepared by the suspension polymerization method.

Coacervation paint: Can condensation polymerization quickly for the paint when construction not sediment, salvage easy .

If the polymerization wanted to keep starved condition steadily, the time of feeding should be longer than 140min.

This article reviews the progress of the synthesis of polymer brushes using surface-initiated atom transfer radical polymerization.

The polymerization thought in creates in ability structure to have the influential role similarly.

Second, Cu(II)-PAMAM complex catalyzed aerobic oxidative polymerization of DMP under mild condition in water with a good selectivity to PPO.

The effects of the content of silicic ester whose substituent number is different to the stability of polymerization were researched.

Polyacrylate emulsion thickening agent was synthesized by emulsion polymerization with several acrylate monomers.

The actin network is a very dynamic structure with continuous directional polymerization and disassembly .

jointly develop commercial applications for solution polymerization styrene butadiene rubber.

The invention also provides the use of the dinuclear cobalt complex as a catalyst in polymerization reaction of alkene active free radicals.

Additionally, some of the atom transfer radical polymerization (ATRP) systems are applicable to the polymerization of NVAs.

Containing comprehensive surfactants, wetting agents, polymerization soft water, fluorescent brighteners and the SC.

(polyvinyl chloride, PVC) Thermoplastic polymer made by addition polymerization from chloroethene.

This is primarily accomplished by the generation of plasmin, which breaks down fibrin and interferes with its polymerization.

The starch microspheres were prepared by the inverse emulsion polymerization principle with soluble starch as raw materials.

In chapter four, the mechanism and the application of two-photon initiators and polymerization of acrylate were discussed.

discusses influence of monomers, emulsifiers, initiators and polymerization processes on performances of latex.

It is pointed out that the mechanism of polymerization for this kind of catalyst need to be further studied.

Redispersible polymer powders are usually prepared by spray drying, the original emulsions which are synthesized by emulsion polymerization.

The styrene-acrylic emulsion modified by double hydroxyl tetra-coordinated silicon was prepared by free radical emulsion polymerization.

The title water resistant silicone-modified vinyl acetate-styrene-butyl acrylate terpolymer is prepared by seed-emulsion polymerization.

Using lactic acid as monomer, L- lactide was synthesized by condensation polymerization and consequent depolymerization steps.

Primary factor including rate of fault shut-down of polymerization reactor is found out through statistics and analysis.

The photochemical reactivity of the polymerization products was investigated.

The paper probes into the influencing factors of cotton linter pulp's polymerization degree under different cooking conditions.

So, there has important relationship between control of temperature distribution reaction and the product quality in tubular polymerization.

By orthogonal experimental of polymerization, tests of applying the synthetics reaction conditions are determined.

The monodisperse micron-size polystyrene particles were prepared by emulsifier-free emulsion polymerization.

The oxidizer can be employed in combination with radical polymerization additives.

Compounds BAV, BPAV1 and BPAV2 can be used for polymerization, demonstrate a new way for BODIPY polymer research.

In the existence of radical initiator, DPDTT can be polymerized through ring-opening polymerization.

Epoxy - acrylic hybrid emulsion with core- shell structure was prepared by semi - continuous seed emulsion polymerization method.

The reaction condition parameters of bulk and solution polymerization of maleic anhydride were selected by orthogonal experiment.

Stable modified styrene-acrylate emulsion was prepared by pretreatment of modified monomer and co-polymerization technology.

The cationic polyacrylate latex with high solid content were synthesized by seeding semi-continuous emulsion polymerization.

A acrylic dispersion used in waterbome two-component polyurethane was synthesized by solution polymerization.

Usually, silica gel used as a catalyst support for olefin polymerization in the petrochemical industry.

In this review, we focus on the progress in synthesis of new block polymers and multi block polymers by living cationic polymerization.

The present invention relates to water suspended nano Ivermectin capsule preparation prepared via emulsion polymerization process.

Ring-opening polymerization is the main path to synthesize PLA through intermediate compound lactide.

The electrochemical polymerization of 6b as a representative was also investigated.

Especially, it is a potential alternative to fluorinated and chlorinated solvents for polymerization of fluorine-containing monomers.

Some features and the kinetic behavior of the polymerization have been investigated.

The effects of polymerization temperature, composition of initiation system, ratio of monomers and reaction time were studied.

Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing using said vessel.

tubulin polymerization in a concentration-dependent manner.

This paper introduced the preparation of polymerization inhibitor ZC of Ethylene, and application in the equipment of daqing chemical plant.

Reasons and treatment of accidents that happened easily in acetylene station and polymerization workshop were introduced.

The inner polymerization force and inner friction angle of the samples are tested by tri-axial shearing stress experiment.

This paper presents investigation of effect of polymerization process condition on stability of emulsion polymerization.

Dispersion polymerization are chosen to make fluorescent microspheres with two fluorescent peaks.

The butadiene polymerization with supported titanium catalyst in hydrogenated gasoline was studied.

Further, producing process is provided for an olefin polymerization catalyst using the above catalyst component.

The properties of PLA are increased, using co-polymerization, blending, compounding, radiation, grafting, etc.

Cooling the stirring axial terminal of polyester final polymerization kettle using the water or the heat conduction oil has some flaws.

The Application of Polymerization Hybridization Breeding in the Selection of New Varieties in "Yang You Series"

Miscellaneous UV- dosage applications including UV- induced polymerization or drying .

Polyvinyl pyrrolidone (PVP) is polymeric fine chemical obtained by free radical polymerization of N-vinyl pyrrolidone (NVP).

thus, the polymers were of low polydispersity and the degree of polymerization could be precisely adjusted.

The new process is developed through low temperature liquid polymerization to produce insoluble sulphur.

The raw material characteristic of polypropene powder produced through small bulk polymerization is analyzed.

When the catalyst is applied to ethene or propylene polymerization, the catalyst has the advantage of high activity.

In general ionic polymerization can be initiated through acidic or basic compounds.

Bulk polymerization traditionally has been defined as the formation of polymer from pure, undiluted monomers.

After the graft polymerization, the blood compatibility of the glass slides was improved significantly.

Meanwhile, the aqueous polymerization activity of ethylene was increased by compounding of emulsifiers.

The hydrophobic polymer particles are mainly generated by free radical polymerization of hydrophobic monomer and accept ink or oil.

A polymerization process in which the monomer is polymerized in the presence of initiator or catalyst without using water or solvent.

Analysing by GPC and IR graphs of PAN obtained, we have discussed the effect of reaction conditions on side-reactions of AN polymerization.

This paper briefly introduced the new view of carbon cationic polymerization mechanism and its recent development abroad.

The polymer with a viscosity average molecular weight beyond 200 000 was fairly reproducible by optimizing the polymerization conditions.

The proposed strategy was illustrated by simulations of bulk polymerization of styrene and fed-batch ethanol fermentation.

The progress of living polymerization techniques has made it possible to design glycopolymers at the molecular level.

Autumn outfit, winter coats polymerization page: the long tail winter clothing, autumn clothing strategies such as this to give priority to.

Chain polymerization is initiated by a reactive species R* produced from some compound I termed an initiator.

The properties of low molecule dimeric dibasic acid polyamide resin were improved by chemical modified in mass polymerization.

These spheres were then soaked in a solution of acrylamide and bathed in UV light to trigger polymerization.

The effects of polymerization condition on viscosity-average molecular weight and stability of polymers were studied.

Recently the application of ionic liquids in polymerization and polymer processing has attracted much attention.

ACR resin with multi - layer core - shell construction was synthesized by multi - stage emulsion polymerization.

The properties, compounding technology and applications of polyvinyl chloride of high degree of polymerization (HPVC) were reviewed.

An acrylate modified epoxy emulsion was prepared by compound emulsion polymerization techniques.

This article introduces some new constructions of inside cold parts for polymerization reactor of synthesis rubber latex.

From the above results, a scheme for the particle nucleation and growth during polymerization process is proposed.

Prepolymers with-NCO and-OH groups on the chain were produced at the early stage of the polymerization.

In this work, we present a novel method for studying the molecular imprinting process in precipitation polymerization systems.

Main points of manufacturing of super-low polymerization degree PVC are described and the physical behaviors and characters are discussed.

Emulsion polymerization is the most common and useful method for preparing waterborne organosilicon polymers.

Use emulsion polymerization to produce soluble and conductive polyaniline (PAn) with DBSA doped.

The high solid content emulsion was efficiently synthesized by multistep emulsion polymerization.

It also analysed the possibilities to modify acrylic fiber and designed new products with the help of co-polymerization theory.

X-ray diffraction shows that polyaniline crystal particles are formed in SF coal, which have low polymerization degree . . .

The conditions of living polymerization ensure a relatively small size of synthesized molecules.

The new telechelic prepolymers of polyisobutylene have been synthesized by the carbocationic polymerization.

Binders for paints and varnishes - Chlorinated polymerization resins - General methods of test.

And IR analysis was shown that the rang open polymerization of epoxy group in the resin took place during UV light-curing reaction.

Conclusion The polymer synthesized by emulsion polymerization has a good sustained-release profile.

If consumption of initiator EHP was increased, the polymerization period could be shortened at the conversion of 85%.

The polymerization, spinning, after processing technique and fiber properties of PTT are summarized.

Flame retardancy of a high polymerization degree PVC, plasticizer and flame retardant elastomer is studied.

The stable emulsion polymerization system was obtained by the research of the process of polymerization.

A catalyst composition and method for preparing a supported catalyst system for olefin polymerization is provided.

This paper discusses the computer based reaction temperature control system of polymerization tank of PVC polymerization process.

According to the different polymerization of word meanings, words can be distinguished as synonyms and antonyms.

phase change materials; high oil absorbing resin; suspension polymerization.

The effects of reaction conditions on product performances were investigated from both respects of polymerization and quaternarization.

The recent pr in calixarene-containing monomers and their polymerization methodology is reviewed.

The polymerization, spinning and elasticity, crystallization properties of modified PA6 were investigated.

A room temperature film formation and low VOC acrylic finishing coatings has been prepared by core-shell structure emulsion polymerization.

PVAC latex is prepared by the polymerization of the new type of ethylene carboxylic acid .

Produced by emulsion polymerization in a similar way to styrene-butadiene rubber processes, yielding both "hot" and "cold" rubbers.

The transparent polymer was prepared by photoinitiated polymerization of microemulsions. . .

A brand for student work has such effects as polymerization, strengthening, clustering and stimulating.

A series of super absorbent polymers with different monomer composition and water-absorbency were prepared by emulsion polymerization.

A low density polyethylene produced by a low pressure process, by Ziegler-Natta polymerization or by use of the Phillips process.

A new kind of combined impeller was presented based on the special requirement of polymerization and its mixed property was studied.

After that, however, there would appear a stationaryconversion platform and then a significant increase in polymerization rate.

Effects of polymerization conditions on the copolymer molecular weight and VA weight content were studied.

The latest advances in initiator, catalyst system and polymerization medium of atom transfer radical polymerization (ATRP) were reviewed.

FI catalyst as a high performance catalyst is developed for olefin polymerization in recent years.

Surface modification was developed via self-polymerization of dopamine and covalent graft of heparin.

Temperature is to promote the oxidative polymerization and the formation of solid ink solvent film.

The use of three-phase interfacial polymerization, polymerization of monomer on the screen to optimize the polymerization conditions.

A catalyst accelerator is aluminum triethide, and is matched for vinyl polymerization reaction.

The polymerization degree of cotton fiber was decreased with the increasing of lost weight rate.

In radical polymerization, this is when a chain curls back and bonds to earlier part of the chain .

The dispersion polymerization of water soluble monomers in aqueous solution is a new kind of green synthesis technology.

In this paper the heterogeneous catalytic polymerization of MA by nanocrystalline titania is studied.

One of the most important breakthroughs in cationic polymerization in 1980s is perhaps the discovery of living cationic polymerization.

The nucleation mechanisms and colloid stability are the key aspects of emulsifier free emulsion polymerization.

The polymerization condition of lactide is studied in this paper. The thermal behavior of PLA are characterized by DSC and TGA.

The spectrum of IR, DTA, and TG were analysed. The mechanism of the polymerization was discussed.

Microencapsulated disperse dyes of S, SE and E types with double layered wall were prepared by in-situ polymerization.

Used the Ukrainian-style viscometer measured the degree of polymerization.

The present article reviews the recent progress of half-metallocene with donor ligand(s) as catalyst for olefin polymerization.

The polymerization degree of products has been measured by the method of end group titrimetric analysis.

The polymerization rate is stable and the composition distribution of the polymer is uniform.

Thermoplastic polymer made by addition polymerization of propene.

A production process is also provided for an olefin polymerization catalyst component using the above precursor.

In chemical industry, polymerization is used to produce synthetic resins and elastomers.

Kinetics of methyl methacrylate (MMA) bulk polymerization is investigated in this paper.

Atom transfer radical polymerization(ATRP)was employed to synthesize graft copolymers of ethyl cellulose with azobenzene.

This review with 40 references describes recent advances concerning applications of proton trap in the cationic polymerization.

Human beings are many great inventions, after a long process of development, and polymerization of countless people heart and growing.

The strong polar monomer maleic anhydride was grafted onto the PE film surface by the binary photograft polymerization in liquid phase.

The propylene polymerization in a liquid-phase loop reactor was simulated based on the polymerization mechanism.

The catalyst is used in olefin polymerization, has high catalytic activity and makes the polymerized product contain no inorganic ash.

Excited molecules may split to form radicals, starting a polymerization process with diffusing monomers.

The effects of reducer type, dosage and component of initiator and concentration of monomer on polymerization were investig. . .

PPO catalyzes the initial step in the polymerization of phenolics to produce quinones.

Polylatic acid (PLA) fiber is prepared from the fermentation product of natural sugar through polymerization and spinning stages.

s: The paper introduces the sort, modification and advances of chromiumbased catalyst for ethylene polymerization.

Effect of dispersion agent on the properties of water - absorption Resin in inverse suspension polymerization .

Oxidation and polymerization of phenols do affect the taste and color of wines (white wine, cider, etc. ).

The monomer mixture receives polymerization reaction in the cavity for hardening.

A kind of porous polyamide carriers to immobilize anaerobic microorganisms was prepared by interfacial polymerization method.

Granular high oil-absorbing resin was prepared by free radical suspension polymerization process using 4-tert-butyl styrene as monomer.

This article introduced the polymerization and new development of polymerization of polylactide.

A view was given on the modification of GAP by co-polymerization, end-capping and use special initiator method.

cellulose lowered with increase of degree of polymerization.

PAN powders was prepared via aqueous suspension polymerization.

Poly (L-lactide) (PLLA) prepared by ring-opening polymerization with L-lactide acid material.

The hard latex for coating on the back of plush flannelet was preparated using semicontinuous emulsion polymerization method.

A polymer made by the addition polymerization of phenylethene.

The new preparation method of polymaleic acid from maleic anhydride by plasma-initiated polymerization in aqueous solution was studied.

There are two main methods to synthesis PLA, ring- opening polymerization of lactide and condensation polymerization of lactic acid.

With typical examples taken it summarized techniques of recovery and biodegradation waste from polymerization in nylon-6.

Polymerization of thinking the idea is to gather as broad a focus of the method.

Owing to the scale-up effect of large packing tower, polymerization and fouling occur generally in the tower.

Methods PLLA-PEG-PLLA tri-block co-polymers were synthesized by ring-opening polymerization.

There are two main methods to synthesis PLA, condensation polymerization of lactic acid and ring-opening polymerization of lactide.

In this dissertation, the synthetic processes of polylactic acid(PLA) by ring-opening polymerization of lactide were studied.

The inhibiting performance of modification polymerization product is the best, having increased about 6. 8%.

All step-growth polymerization fall into two groups depending on the type of monomer(s) employed.

The use of polymeric surfactants as stabilizers in miniemulsion polymerization was reviewed.

Meanwhile, Princess House, Garden Song, Zhu De Villa, villas, etc. justice polymerization is very unique building.

is too condensend or binders polymerization through high formation of gel if add fat hydrocarbons, ketones, diluted.

The interfacial polymerization is a novel technology and has been widely applied in diverse areas.

It is the polymerization of units linked end-to-end that forms the characteristic chains of macromolecules.

Further has researched the various factors on AGET ATRP preparation of fluorinated acrylic acid polymerization reaction.

But small pigment particles, fragmentation is also caused by heat, and thus the polymerization of the resin will affect the ink mobility.

The processes involve the use of an initiator to initiate polymerization of vinylpyridine monomers in water.

The method further includes reacting one or more polymerization catalysts with the supported activator.

and the NGO of the community should become a polymerization.

Free-Radical Polymerization under High Pressure.

After the polymerization, no oligomers in dispersion medium was founded.

Nylon 612 was synthesized from dodecanedioic acid and 1, 6-hexanediamine by means of salt-formation from neutralization and polymerization.

The progress regarding the living radical polymerization of N-vinylamides(NVAs) is summarized.

There are two types of polymerization techniques: addition and condensation.

A method for preparation of anionic organosiloxane emulsion polymerization of octamethylcyclotetrasiloxane (D4) was introduced.

Grafting polymerization of acrylic acid onto flax initiated by ceric salt has been studied.

The implant was made by initiator induced polymerization.