ON THE DYNAMICS OF EQUILIBRIUM NETWORKS - POE-B-PI-B-POE COPOLYMERS IN H2O AOT ISOOCTANE WATER-IN-OIL MICROEMULSIONS

被引：27

作者：

FLEISCHER, G

STIEBER, F

HOFMEIER, U

EICKE, HF

机构：

[1] FAK PHYS & GEOWISSENSCH LEIPZIG,INST EXPTL PHYS 1,POLYMERPHYS ABT,D-04103 LEIPZIG,GERMANY

[2] UNIV BASEL,DEPT CHEM,INST PHYS CHEM,KLINGELBERGSTR 80,CH-4056 BASEL,SWITZERLAND

来源：

LANGMUIR | 1994年 / 10卷 / 06期

关键词：

D O I：

10.1021/la00018a027

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Self-diffusion properties of the AOT and triblock copolymer molecules in a water in oil microemulsion were investigated with pulsed field gradient NMR. A crossover from restricted to free polymer diffusion and a strong coupling of polymer and surfactant diffusion were observed supporting the idea of transient network formation in the investigated system. Quasielastic light scattering, only detecting motions of the water droplets, yields three diffusive processes. The intermediate process is due to density fluctuations resulting from the self-diffusion of the copolymer.

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页码：1780 / 1785

页数：6

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