标题：Solution properties of hydrophobically modified acrylamide-based polysulfobetaines in the presence of surfactants
作者：Yu-Ju Che;Yebang Tan;Xiaona Ren
作者机构：[Che, Y.-J] Marine College, Shandong University at Weihai, Weihai 264209, China;[ Tan, Y] School of Chemistry and Chemical Engineering, Shandong Unive 更多
通讯作者地址：[Meng, FJ]Shandong Univ Weihai, Marine Coll, Weihai 264209, Peoples R China.
来源：Colloid and polymer science
关键词：Hydrophobically modified polysulfobetaines;Surfactants;Surface tension;Rheological behavior;Dynamic laser light scattering;Rayleigh light scattering
摘要：Polymer-surfactant interactions in aqueous solutions of a acrylamide-based, hydrophobically modified poly-sulfobetaine (ADS) containing 3-[N-(2-methacryloxylethyl)-N,N-dimethylammonio]-propane sulfonate and stearyl meth-ylacrylate, with sodium dodedyl sulfate (SDS), iV-dodecy1-N, N,N-trimethylammonium bromide (DTAB), and Triton X-100 were studied using surface tension, rheology, Rayleigh light scattering, and dynamic laser light scattering techniques. The purpose of this study was to highlight the influences of the surfactant structure and the nature of the surfactant head group on the polymer-surfactant interactions. The results show that the interaction and association between ADS and surfactants are distinctly varied depending on surfactant type and surfactant concentration. SDS produced the strongest interactions with ADS, while DTAB and Triton X-100 interact with ADS to a lesser degree, which is attributed to surfactant structure and the nature of the surfactant head group. For SDS and DTAB, there are two driving forces for the complexation of the polymer and surfactants, resulting from the electrostatic interaction and the hydrophobic association. However, for the nonionic surfactant Triton X-100, only hydrophobic association predominated in the interaction between ADS and the surfactant. The mechanism and reconstruction of the polymer-surfactant complexes have been evaluated and discussed.