C. Wu et al., Novel synthesis of long multi-block heteropolymer chains with an ordered sequence and controllable block lengths, CHIN J POLY, 19(5), 2001, pp. 451-454
It had very long been a dream in polymer science to synthesize long multi-b
lock polymer chains with an ordered chain sequence and controllable block l
engths. Using ionic or living free radical polymerization or furnishing eac
h end of polymer blocks with a reactive functional group, one can only prep
are heteropolymer chains with few long blocks, such as diblock and triblock
copolymers. The most plausible result so far was a pentablock copolymer. R
ecently, using a combination of polymer physics and synthetic chemistry, we
have invented self-assembly assisted polycondensation (SAAP). This communi
cation reports the results of using this novel method to connect 10-100 tri
block polymer chains together to form long multi-block heteropolymer chains
with an ordered sequence and controllable block lengths.