De-gassed water and surfactant-free emulsions: History, controversy, and possible applications

被引:20
作者
Eastoe, Julian [1 ]
Ellis, Christopher [1 ]
机构
[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England
关键词
D O I
10.1016/j.cis.2007.04.017
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Recent reports claiming stabilisation of surfactant-five oil-in-water emulsions (o/w SFEM's) have intrigued the colloid science community, and been reported in both the scientific literature and popular press. Key to the formation of SFEM's is a sequence of solidification by freeze quenching, degassing by action of vacuum, then thawing, known as freeze-pump-thaw (F-P-T). It is believed that the "emulsification" is caused by a reduction of hydrophobic interactions owing removal of dissolved gas after these F-P-T cycles. This review summarises literature on SFEM's, covering experiments, proposed mechanisms, and some potentially exciting applications. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:89 / 95
页数:7
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