Photoresponsive microemulsions

被引：59

作者：

Eastoe, J ^{[1
]}

Sanchez-Dominguez, M

Cumber, H

Burnett, G

Wyatt, P

Heenan, RK

机构：

[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

[2] ISIS, CLRC, Rutherford Appleton Lab, Chilton OX11 0QX, Oxon, England

来源：

LANGMUIR | 2003年 / 19卷 / 17期

关键词：

D O I：

10.1021/la0349830

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photoresponsive microemulsions have been made by addition of a photodestructible surfactant, sodium 4-hexylphenylazosulfonate (1), to AOT-stabilized water-in-heptane phases. Exposure of these samples to UV light led to changes in phase stability and droplet size, owing to breakdown of 1. Small-angle neutron scattering was used to follow this UV-induced shrinkage of the water nanodroplets: a maximum volume decrease was found to be in the order of 60%. Proton NMR of an UV-irradiated microemulsion shows that around 90% of the added 1 decomposes, to yield a mixture of 4-hexylphenol (similar to37%) and hexylbenzene (52%).

引用

页码：6579 / 6581

页数：3

共 14 条

[11] Isothermal switching of conductivity in microemulsions via photodimerization of acridizinium bromide [J].