Abstract
Star-shaped poly(phenoxy propylene sulfide) [poly (PPS)] were synthesized by anionic polymerization using a trifunctional initiator (I 1 ) derived from a trifunctional five-membered cyclic dithiocarbonate and benzyl amine. Conditions for the anionic polymerization of PPS were optimized to obtain polymers with desired M n s and narrow M w /M n s. The best catalyst and solvent were DBU and DMF, respectively. The star-shaped structure of the resulting star poly(PPS) was supported by SEC analysis. The refractive indexes (n D ) of the star poly (PPS) were relatively high (>1.64).
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