关键词:

季铵盐类表面活性剂, 生物降解性, 分子连接性指数

Abstract:

A remarkable relationship between the biodegradability and their quantitative structure of quaternary cationic surfactants was found using the term of topologic index.A model equation related the degradability and molecular connection index was established by the regression analysis,which showed excellent complex related coefficient (R>0.97), standard deviation (E₀=13.7910) and average standard deviation (D=0.0432).

The values calculated by using above equation were in good agree with the values reported in literature for biodegradability of quaternary cationic surfactants.It indicated that the equation was reliable and was a new method for evaluation of biodegradability of quaternary cationic surfactants.

Key words:

季铵盐类表面活性剂, 生物降解性, 分子连接性指数