Hydrogel was moderate crosslinded, branchedpolymers, widely studied and applied because of the ability to absorb large quantities of water, swell quickly, soft, elastine and biologic consistence.
Polymers may consist of long chains of unbranched or branched monomers or may be cross-linked networks of monomers in two or three dimensions.
聚合物可能包含由无支链的或有支链的单体组成的长链,也可能是单体连接的耳维或三维网状结构。
3
These catalyst systems are generally used to produce polyolefins having broad molecular weight distributions, especially polyethylene. Some systems are used to produce branched or block polymers.