Interaction-controlled HPLC for block copolymer analysis and separation

被引：49

作者：

Park, S

Park, I

Chang, T ^{[1
]}

Ryu, CY

机构：

[1] POSTECH, Dept Chem, Pohang 790784, South Korea

[2] POSTECH, Ctr Integrated Mol Syst, Pohang 790784, South Korea

[3] Rensselaer Polytech Inst, Dept Chem & Chem Biol, Troy, NY 12180 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 29期

关键词：

D O I：

10.1021/ja047385w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An interaction-controlled HPLC technique has been developed to analyze homopolymer precursors in block copolymer systems that are not easily identified by size exclusion chromatography (SEC) and to obtain block copolymers that are homopolymer-free and compositionally narrower than the as-synthesized ones. We demonstrate that a single peak" in SEC does not necessarily mean that the block copolymers are free of homopolymers (due to limitations in the SEC analysis of block copolymers) and propose to employ the interaction-controlled HPLC strategy for rigorous analysis and purification of block copolymers in terms of their chemical heterogeneity. Copyright © 2004 American Chemical Society."

引用

页码：8906 / 8907

页数：2

共 17 条

[1] Progress in liquid chromatography of synthetic electroneutral polymers [J].