Block copolymers by transformations of living ring-opening metathesis polymerization controlled/''living'' atom transfer radical polymerization

被引：159

作者：

Coca, S

Paik, HJ

Matyjaszewski, K

机构：

[1] Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213

来源：

MACROMOLECULES | 1997年 / 30卷 / 21期

关键词：

D O I：

10.1021/ma970637b

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

A general method of transformation of living ring-opening metathesis polymerization (ROMP) into controlled/''living'' atom transfer radical polymerization (ATRP) is reported for the preparation of block copolymers. For example, the macroinitiators PNB-C6H4-CH2Br (Mn = 30 520, M-w/M-n = 1.09) or PDCPD-C6H4-CH2Br (M-n = 12 100, M-w/M-n = 1.24) were prepared by ROMP of norbornene (NB) or dicyclopentadiene (DCPD) and subsequent Wittig-like reactions with p-(bromomethyl)benzaldehyde. These compounds were used as efficient macroinitiators for homogeneous controlled/''living'' ATRP to prepare block copolymers with styrene (St), PNB-b-PSt (M-n = 110 400, M-w/M-n = 1.06) and PDCPD-b-PSt (M-n = 20 100, M-w/M-n = 1.37), and methyl acrylate (MA), PNB-b-PMA (M-n = 85 100, M-w/M-n = 1.07) and PDCPD-b-PMA (M-n = 25 300, M-w/M-n = 1.47).

引用

页码：6513 / 6516

页数：4

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