Star-Shaped Polymer Synthesis by Anionic Polymerization of Propylene Sulfide Based on Trifunctional Initiator Derived from Trifunctional Five-Membered Cyclic Dithiocarbonate

摘要

Star-shaped polymers may be applied to cross-linking agents,ionomers,surface-active agents,compatibilizers,and thermoplastic elastomers.Among them,heteroarm-containing star-shaped polymers have recently attracted much attention.For example,heteroarm star-shaped polymers having amphiphilic arm segments exhibit unique behavior in solution owing to their characteristic self-assembly properties.In general,the synthesis of heteroarm star polymers is more difficult than that of typical star carrying polymers because the different arm segments must be sequentially introduced in a selective manner.