Full separation of oligomers in block copolymers of ethylene oxide and propylene oxide

被引：16

作者：

Malik, Muhammad Imran ^{[1
,2
]}

Trathnigg, Bernd ^{[1
,2
]}

机构：

[1] Karl Franzens Univ Graz, Inst Chem, A-8010 Graz, Austria

[2] Cent Polymer Lab Mol Characterist CePOL MC, Graz, Austria

来源：

JOURNAL OF SEPARATION SCIENCE | 2009年 / 32卷 / 11期

关键词：

Amphiphilic block copolymers; Critical adsorption point (CAP); Liquid chromatography under critical conditions (LCCC); Oligomers; EXCLUSION-ADSORPTION CHROMATOGRAPHY; PERFORMANCE LIQUID-CHROMATOGRAPHY; MOLECULAR CHARACTERIZATION; ISOCRATIC SEPARATION; CHEMICAL-COMPOSITION; POLYETHYLENE-GLYCOL; FUNCTIONALITY-TYPE; COUPLED DENSITY; CRITICAL RANGE; POLYMERS;

D O I：

10.1002/jssc.200900043

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study di- and triblock copolymers of ethylene oxide (EO) and propylene oxide (PO) are analyzed by using CAP for one block and adsorption for the other block. This gives a complete picture of EO- and PO-based block copolymer with respect to the oligomers of both blocks. A full resolution of the individual oligomers can be achieved for both blocks up to an average molecular weight of 1000-1500 of each block.

引用

页码：1771 / 1781

页数：11

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