ISOTHERMAL STABILITY OF DILUTE AQUEOUS-SOLUTIONS OF BLOCK COPOLYMERS OF POLY(OXYETHYLENE)-POLY(OXYPROPYLENE)-POLY(OXYETHYLENE) - A MICROCALORIMETRIC STUDY OF PLURONIC-F87 AND PLURONIC-F88

被引：18

作者：

IRWIN, JJ ^{[1
]}

BEEZER, AE ^{[1
]}

MITCHELL, JC ^{[1
]}

BUCKTON, G ^{[1
]}

CHOWDHRY, BZ ^{[1
]}

EAGLAND, D ^{[1
]}

CROWTHER, NJ ^{[1
]}

机构：

[1] UNIV KENT, CHEM LAB, CANTERBURY CT2 7NH, KENT, ENGLAND

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 09期

关键词：

D O I：

10.1021/j100111a050

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：

Dilute aqueous solutions of block copolymers of poly(oxyethylene)-poly(oxypropylene)-poly(oxyethylene) (pluronic F87 and pluronic F88) have been subject to an isothermal microcalorimetric study at 298 K. Thermal events consistent with a phase transition in solution are observed. Some of the thermodynamic and kinetic detail of these aging phenomena are reported, as are the consequences of the presence in solution of urea and of sodium chloride.

引用

页码：2034 / 2036

页数：3

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