ATRP–RCMpolymercyclization: synthesis of amphiphilic cyclic polystyrene-b-poly(ethylene oxide) copolymers

文献信息

发布日期 2011-11-23

DOI 10.1039/C1PY00475A

影响因子 5.582

作者

Eisuke Baba, Satoshi Honda, Takuya Yamamoto, Yasuyuki Tezuka

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摘要

A novel amphiphilic block copolymer, i.e., cyclic polystyrene-b-poly(ethylene oxide) (cyclic PS-b-PEO 2), was synthesized through atom-transfer radical polymerization (ATRP), followed by ring-closing metathesis (RCM). Thus, a bromobenzyl-terminated PS-b-PEO-b-PS (6) was first prepared by ATRP of styrene using a PEO macroinitiator having 2-bromoisobutyryl groups (5). The subsequent end-group conversion into allyl groups was performed quantitatively with allyltrimethylsilane (ATMS) in the presence of TiCl4. The allyl-telechelic triblock copolymer PS-b-PEO-b-PS (7) thus obtained was subjected to metathesis polymer cyclization with a Grubbs' 2nd generation catalyst to produce amphiphilic cyclic PS-b-PEO (2).

期刊推荐

Current Organic Synthesis

Letters in Organic Chemistry

Nature Methods

Physics of Life Reviews

Molecular Pharmaceutics

Crystal Growth & Design

Current Topics in Medicinal Chemistry

Letters in Drug Design & Discovery

Molecular Cancer Therapeutics

Annual Review of Materials Research

来源期刊

Polymer Chemistry

CiteScore: 8.6

自引率: 7.3%

年发文量: 457

Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.

ATRP–RCMpolymercyclization: synthesis of amphiphilic cyclic polystyrene-b-poly(ethylene oxide) copolymers

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Polymer Chemistry

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