Photoresponsive microemulsions

被引：60
|
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
收藏
页码：6579 / 6581
页数：3
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