DYNAMIC INTERACTIONS AND ADSORPTION IN SYSTEMS OF HYDROPHOBICALLY-MODIFIED WATER-SOLUBLE POLYMERS

被引：5

作者：

HANSEN, FK ^{[1
]}

NYSTROM, B ^{[1
]}

WALDERHAUG, H ^{[1
]}

BORVE, KL ^{[1
]}

机构：

[1] NORWEGIAN INST TECHNOL, DEPT MACHINE CONSTRUCT & MAT TECHNOL, N-7034 TRONDHEIM, NORWAY

来源：

MACROMOLECULAR SYMPOSIA | 1995年 / 92卷

关键词：

D O I：

10.1002/masy.19950920127

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Associating polymers are prepared from poly(oxyethylene) and a diisocyanate and terminated by linear alcohols with 8 to 18 C-atoms. Solutions of these polymers in pure water and with surfactants have been investigated by dynamic light scattering and NMR self-diffusion. The diffusion results indicate that the polymers in solution form heterodisperse clusters that show a complex behavior of overlap and coupling to each other, a feature which may be described by the coupling theory of Ngai and coworkers. In addition competitive adsorption on polystyrene latex particle is measured and the results indicate a multilayer adsorption structure that is broken down by surfactant addition. Surfactant adsorption seems to be practically independent of adsorbed polymer, except for an ''initial inhibition'' concentration that may be connected to the desorption of secondary layers of adsorbed polymer.

引用

页码：345 / 354

页数：10

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