Syntheses of well-defined poly(siloxane)-b-poly(styrene) and poly(norbomene)-b-poly(styrene) block copolymers using functional alkoxyamines

被引：19

作者：

Miura, Y ^{[1
]}

Sakai, Y ^{[1
]}

Taniguchi, I ^{[1
]}

机构：

[1] Osaka City Univ, Grad Sch Engn, Dept Appl Chem, Sumiyoshi Ku, Osaka 5588585, Japan

来源：

POLYMER | 2003年 / 44卷 / 03期

关键词：

anionic polymerization; block copolymers; living radical polymerization;

D O I：

10.1016/S0032-3861(02)00785-1

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Functional alkoxyamines, 1-[4-(4-lithiobutoxy)phenyl]-1-(2,2,6,6-tetramethylpiperidinyl-N-oxyl)ethane (2) and 1-[4-(2-vinyloxyethoxy)phenyl]-1-(2,2,6,6-tetramethylpiperidinyl-N-oxyl)ethane (3) were prepared, and well-defined poly(hexamethylcyclotrisiloxane)-b-poly(styrene)[poly(D-3)-b-poly(St)] and poly(norbornene)-b-poly(St) [poly(NBE)-b-poly(St)] were prepared using the alkoxyamines. The first step was preparation of poly(D-3) and poly(NBE) macroinitiators, which were obtained by the ring-opening anionic polymerization of D-3 using 2 as an initiator and the ring-opening metathesis polymerization of NBE using 3 as a chain transfer. The radical polymerization of St by the poly(D-3) and poly(NBE) macroinitiators proceeded in the 'living' fashion to give well-defined poly(D-3)-b-poly(St) and poly(NBE)-b-poly(St) block copolymers. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：603 / 611

页数：9

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