Synthesis of branched polymers by means of living anionic polymerization, 5 - Synthesis of star polymers by reactions of end-functionalized polystyrenes with chloromethylphenyl groups with polymer anions consisting of two polymer chains

被引：0

作者：

Hirao, A ^{[1
]}

Tokuda, Y ^{[1
]}

Morifuji, Y ^{[1
]}

Hayashi, M ^{[1
]}

机构：

[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Polymer & Organ Mat Dept, Meguro Ku, Tokyo 1528552, Japan

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2001年 / 202卷 / 09期

关键词：

D O I：

10.1002/1521-3935(20010601)202:9<1606::AID-MACP1606>3.0.CO;2-M

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Well-defined five-arm star polymers, having different arms in molecular weight or composition, were synthesized by linking reactions of end-functionalized polystyrenes with two chloromethylphenyl (CMP) groups and polymer anions consisting of two identical or different polymer chains. The polymer anions were prepared by coupling living anionic polymers of styrene or isoprene with 1,1-diphenylethylene (DPE)-end-functionalized polymers. They were then reacted in situ with the CMP-end-functionalized polystyrenes to afford heteroarm star polymers of the AA2′A2″, AA2′B2, and AB2C2 types where the A, B, and C segments were polystyrene, poly(a-methylstyrene), and polyisoprene, respectively. 1H NMR spectroscopy, SEC, vapor pressure osmometry (VPO), and static light scattering measurements evaluated the well-defined architecture of these polymers. © Wiley-VCH Verlag GmbH, 2001.

引用

页码：1606 / 1613

页数：8

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