Dilational viscoelastic properties of sodium alkyl benzene sulfonates with different structures at octane/water interface

被引：5
|
作者：
Song Xin-Wang
Wang Yi-Yang
Cao Xu-Long
Luo Lan
Wang Lin
Zhang Lu [1 ]
Yue Xiang-An
Zhao Sui
Yu Jia-Yong
机构：
[1] China Univ Petr, Beijing 102249, Peoples R China
[2] Shengli Oilfield Co Ltd, SINOPEC, Geol Res Inst, Dongying 257015, Peoples R China
[3] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 2006年 / 22卷 / 12期
关键词：
sodium alkyl benzene sulfonate; dilational modulus; phase angle; interfacial tension relaxation;
D O I：
10.3866/PKU.WHXB20061202
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：
The dilational viscoelasticity properties of octane-water interface containing three sodium alkyl benzene sulfonates with straight chain (C(8)phSO(3)Na and C(16)phSO(3)Na) and branch chain (7-8-1) respectively were investigated. The influences of alkyl chain length and hydrophobic branched-chain structure on interfacial dilational properties were expounded. It showed that the increase of alkyl chain length resulted in the enhancement of molecular interaction and the increase of interfacial dilational elasticity. The slow relaxation processes were caused by the rearrangement and entanglement of branched-chains at interface and resulted in relative higher interfacial dilational modulus.
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收藏
页码：1441 / 1444
页数：4
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