Association properties of ethylene oxide/styrene oxide diblock copolymer E17S8 in aqueous solution

被引：18

作者：

Yang, Z

Crothers, M

Attwood, D

Collett, JH

Ricardo, NMPS

Martini, LGA

Booth, C

机构：

[1] Univ Manchester, Sch Pharm & Pharmaceut Sci, Manchester M13 9PL, Lancs, England

[2] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England

[3] Univ Fed Ceara, Dept Organ & Inorgan Chem, BR-12200 Fortaleza, Ceara, Brazil

[4] GlaxoSmithKline Inc, Harlow CM19 5AW, Essex, England

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2003年 / 263卷 / 01期

关键词：

ethylene oxide; styrene oxide; diblock copolymer; cylindrical micelles;

D O I：

10.1016/S0021-9797(03)00216-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ethylene oxide and styrene oxide were sequentially polymerized to form the diblock copolymer E17S8 (E = oxyethylene, OCH2CH2; S = oxyphenylethylene, OCH2CH(C6H5); subscripts denote number-average block lengths in repeat units). Light scattering was used to investigate the properties of the micelles formed in dilute solution in the temperature range 15-30 degreesC. The micelles are elongated (probably spheroidal) at the lower temperature and highly elongated (cylindrical, probably wormlike) at the higher temperature. Comparison with results reported for the copolymer E11B8 (B = oxybutylene, OCH2CH(C2H5)) allowed exploration of the effect of changing the hydrophobic block. The results provide useful indicators toward the design of ES copolymers with optimal solubilization properties. (C) 2003 Elsevier Science (USA). All rights reserved.

引用

页码：312 / 317

页数：6

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