Interactions between pluronic block polyether and CTAB at air/water interface: interfacial dilational rheology study

被引：3
作者：
Gong, Houjian [1 ,2 ]
Xu, Long [1 ]
Zhu, Teng [1 ]
Xu, Guiying [2 ]
Shi, Xiaofeng [2 ]
Dong, Mingzhe [1 ]
Li, Yajun [1 ]
机构：
[1] China Univ Petr East China, Coll Petr Engn, Qingdao 266580, Peoples R China
[2] Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China
来源：
COLLOID AND POLYMER SCIENCE | 2016年 / 294卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Hydrophobic interaction; Dilational modulus; Pluronic block polyether; Cetyltrimethyl ammonium bromide (CTAB); AIR-WATER-INTERFACE; N-DODECYL ETHER; PH-PPO-PEO; AQUEOUS-SOLUTIONS; TRIBLOCK COPOLYMER; AGGREGATION BEHAVIORS; IONIC SURFACTANTS; LIGHT-SCATTERING; MIXED MICELLES; SODIUM OLEATE;
D O I：
10.1007/s00396-016-3919-2
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 interactions between Pluronic block polyethers (L64 and 17R4) and cetyltrimethyl ammonium bromide (CTAB) were investigated by the measurement of the interfacial dilational viscoelasticity. The dilational moduli of the Pluronic block polyether/CTAB solutions firstly increased, passed through the maximum, and then decreased with the increasing concentration of CTAB. 17R4/CTAB mixed solutions have much larger dilational moduli than L64/CTAB systems, which means that 17R4 and CTAB have stronger interactions than L64 and CTAB. The dilational moduli of 17R4/CTAB systems were different from L64/CTAB systems in the presence of NaBr. The dilational moduli of the L64/CTAB mixed solutions decreased firstly, passed through the minimum value, and then increased with the increasing concentration of NaBr, while the dilational moduli of 17R4/CTAB mixed solutions increased firstly, passed through the maximum, and then decreased. These differences show that NaBr has great influence on the interactions between Pluronic block polyethers and CTAB.
引用
收藏
页码：1577 / 1584
页数：8
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