Effect of average molecular weight and distribution of AAS on characteristic parameters of middle phase microemulsion

丁伟1

doi:10.3969/j.issn.0438-1157.2012.07.026

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Effect of average molecular weight and distribution of AAS on characteristic parameters of middle phase microemulsion

更新时间：2025-12-10

- Effect of average molecular weight and distribution of AAS on characteristic parameters of middle phase microemulsion
- CIESC Journal Issue 7, Pages: 2176-2180(2012)
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- DOI：10.3969/j.issn.0438-1157.2012.07.026
  CLC： 647：TQ423.1
- Online First：05 July 2012，
  
  Published：05 July 2012
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丁伟1. Effect of average molecular weight and distribution of AAS on characteristic parameters of middle phase microemulsion[J]. CIESC Journal, 2012, (7): 2176-2180.
DOI：

丁伟1. Effect of average molecular weight and distribution of AAS on characteristic parameters of middle phase microemulsion[J]. CIESC Journal, 2012, (7): 2176-2180. DOI： 10.3969/j.issn.0438-1157.2012.07.026.

摘要

用Winsor相图法研究了由实验室自制的8种烷基芳基磺酸盐复配体系/正丁醇/正癸烷/NaCl形成的微乳液，探讨了烷基芳基磺酸盐平均分子量及其分布对中相微乳液特性参数的影响，为中相微乳液体系最佳配方的选择提供了理论指导。结果表明：中相形成盐度S1，中相消失盐度S2，中相盐宽ΔS，最佳盐度S*值均随高分子量磺酸盐含量的增加而减小；最佳中相微乳液体积V*和增溶参数S.P值均随高分子量磺酸盐含量的增加而增大；S1、S2、ΔS、S*值均随磺酸盐平均分子量的增大而减小；V*和S.P值均随磺酸盐平均分子量的增大而增大；且在实验范围内，lgS*、V*、S.P与磺酸盐平均分子量均呈线性关系。

Abstract

The complex system of eight alkyl aryl sulfonates（AAS）synthesized in the laboratory/n-butanol/n-decane/NaCl water microemulsions were studied with the Winsor phase diagram.The effects of average molecular weight and distribution of AAS on the characteristic parameters were discussed.The results showed that the values of formation salinity (S1)，disappearance salinity (S2)，length of salinity (ΔS)，optimal salinity (S*)of middle phase decreased while the values of optimal middle phase volume (V*)and solubilization ability (S.P)increased with increasing content of high molecular weight sulfonate.With increasing average molecular weight of AAS

the values of S1，S2，ΔS，S* decreased while the values of V* and S.P increased; also the values of lgS*

S.P changed as a linear function of average molecular weight of AAS.

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