DIFFUSION AND SCALING BEHAVIOR OF POLYMER-SURFACTANT AGGREGATES

被引：26

作者：

CHARI, K ^{[1
]}

ANTALEK, B ^{[1
]}

MINTER, J ^{[1
]}

机构：

[1] EASTMAN KODAK CO, DIV ANALYT TECHNOL, ROCHESTER, NY 14652 USA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.74.3624

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The self-diffusion coefficient of poly(ethyleneoxide) (PEO) in self-assembled aggregates of PEO and sodium dodecyl sulfate (SDS) in water at PEO concentrations well below the overlap point has been determined by pulse gradient spin echo NMR spectroscopy. The results show that individual polymer coils undergo significant expansion upon complexation with the surfactant. The diffusion coefficients of PEO coils saturated with SDS scale with molecular weight of the polymer as DMapp with app=0.600.02. The value of app in this case is different from app=0.550.01 for the surfactant free coil. © 1995 The American Physical Society.

引用

页码：3624 / 3627

页数：4

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