摘要
ABA triblock copolymers containing polyisoprene segments,such as polyisoprene b polystyrene b polyisoprene (PIP b PSt b PIP)and polyisoprene b poly(methyl methacrylate) b polyisoprene(PIP b PMMA b PIP),were prepared with macro iniferter technique.The macro iniferters (PSt CCDCM and PMMA CCDCM)bearing α and ω N,N diethyldithiocarbamyl (DC)groups were synthesized by bulk polymerization of St and MMA with diethyl 2,3 dicyano 2,3 di( p N,N diethyldithiocarbamylmethyl) phenylsuccinate (DDDCS) as a thermal iniferter.The block copolymerization of IP with PSt CCDCM or PMMA CCDCM was carried out under UV light irradiation.The block copolymers were characterized by 1H NMR,GPC and DSC analyses,and the polymerization proceeded as a living polymerization process.
ABA triblock copolymers containing polyisoprene segments, such as polyisoprene-b-polystyrene-b-polyisoprene (PIP-b-PSt-b-PIP)and polyisoprene-b-poly( methyl methacrylate)-b-polyisoprene (PIP-b-PMMA-bPIP),were prepared with macro-iniferter technique. The macro-iniferters (PSt-CCDCM and PMMA-CCDCM) bearing alpha- and omega -N, N-diethyldithiocarbamyl (DC) groups were synthesized by bulk polymerization of St and MMA with diethyl 2,3-dicyano-2,3-di(p-N, N-diethyldithiocarbamylmethyl)-phenylsuccinate (DDDCS) as a thermal iniferter. The block copolymerization of IP with PSt-CCDCM or, PMMA-CCDCM was carried out under UV light irradiation. The block copolymers were characterized by H-1-NMR, GPC and DSC analyses, and the polymerization proceeded as a living polymerization process.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2001年第4期549-552,共4页
Acta Polymerica Sinica
