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单词 Star polymer
释义

Star polymer

英语百科

Star-shaped polymer

Representations of how star shaped polymers are typically shown
Three star-shaped polymers. A poly(ethylene glycol) (PEG) homostar, an AAB heterostar or Miktoarm star with two PEG arms and one poly(vinyl chloride) (PVC) arm, and a block star-shaped copolymer with PEG and PVC blocks.
Arm-first synthesis using a chlorosilane derivative core and anionic monomer arms
Generalized core-first synthesis approach. The * symbols represent active functionalities

Star-shaped polymers are the simplest class of branched polymers with a general structure consisting of several (more than three) linear chains connected to a central core. The core, or the center, of the polymer can be an atom, molecule, or macromolecule; the chains, or “arms,” consist of variable-length organic chains. Star-shaped polymers in which the arms are all equivalent in length and structure are considered homogeneous, and ones with variable lengths and structures are considered heterogeneous.

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