Association behaviour of diblock copoly(oxyethylene/oxybutylene) in aqueous solution determined by eluent gel permeation chromatography

Qingguo Wang, David Brown, Jingmei Huang, S. Keith Nixon, Peter A. Gorry, Colin Price, Colin Booth

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The association behaviour of a diblock copolymer of ethylene oxide and 1,2-butylene oxide, E40B10 [E denotes oxyethylene, B denotes oxybutylene, and the subscripts denote number-average block length in chain units] in aqueous solution was studied using eluent gel permeation chromatography (EGPC) over the temperature range of 9-50 °C. In the experiment a solution of E40B10 (0.5 wt%) was used as an eluent, into which a solution of higher concentration was injected. The critical temperature for micelle formation was approximately 10 °C. With allowance made for adsorption in the EGPC system, the extent of micellisation was determined over the full temperature range and compared with the van't Hoff prediction and with related data for triblock oxyethylene/oxypropylene copolymer F127. © 2002 Elsevier Science Ltd. All rights reserved.
    Original languageEnglish
    Pages (from-to)3621-3625
    Number of pages4
    JournalPolymer
    Volume43
    Issue number13
    DOIs
    Publication statusPublished - 26 Apr 2002

    Keywords

    • Eluent gel permeation chromatography
    • Micellisation
    • Oxyethylene/oxybutylene block copolymer

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