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Citation: Yu Xiaoqi, Lan Zhongwei, Zhao Huaming. Surface Active Properties of Long Chain Alkoxymethyl Substituted Crown Ethers[J]. Chinese Journal of Applied Chemistry, ;1994, 11(1): 46-49. shu

Surface Active Properties of Long Chain Alkoxymethyl Substituted Crown Ethers

1.
Department of Chemislry, Sichuan University, Chengdu 610064

Received Date: 2 March 1993
Available Online: 29 June 1993

The surface active properties of aqueous solution of the long chain alkoxymethylcrown ethers and corresponding open chain compounds alkoxymethyl oligoethylene glycols,have been investigated by surface tension measurement. The results show that compounds 1 and 2,where the number of carbon atoms in the side chain(n) exceeds 8,can form micelles inaqueous solution, and their CMC values decrease with the increase of n. Correlation of thelog(CMC)values of a homologous series of surface active agents for the same temperatare with n gives a satisfactory linear relationship with the correlation coeffecients generally beinggreater than 0.99. The effects of NaCl on the surface properties of the long chainalkoxy methyl substituted oligoethylene glycols and corresponding crown ether compounds also have been investigated.
- long chain alkoxymethyl substituted crown ether,
- surface active property
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