Synthesis of poly(styrene-b-isoprene-b-styrene) via nitroxide-mediated radical polymerization by a novel alkoxyamine

Bifunctional alkoxyamine bis-TIPNO derived from 2,2,5-trimethyl-4-phenyl-3-azahexane-3-oxyl(TIPNO) and a, to-alkyl bromide by atom transfer radical addition(ATRA) was employed as "biradical initiator" for nitroxide-mediated radical polymerization (NMRP) of isoprene and styrene. The kinetics study for the polymerization of styrene at different time showed living features. The poly(styrene-b-isoprene-b-styrene) (SIS) copolymers have two glass transition temperatures, indicating the immiscibility of the corresponding blocks.Chemistry, MultidisciplinarySCI(E)EI中国科技核心期刊(ISTIC)中国科学引文数据库(CSCD)0ARTICLE5615-6182