A facile route to design pH-responsive viscoelastic wormlike micelles:   Smart use of hydrotropes

doi:10.1016/j.jcis.2008.10.071

CORC > 北京大学 > 化学与分子工程学院

	A facile route to design pH-responsive viscoelastic wormlike micelles: Smart use of hydrotropes
	Lin, Yiyang ; Han, Xue ; Huang, Jianbin ; Fu, Honglan ; Yu, Cailan
刊名	胶体与界面科学杂志
	2009
关键词	pH responsive Wormlike micelle Viscoelastic fluid Hydrotrope CATANIONIC SURFACTANT SOLUTIONS SINGLE-TAILED SURFACTANTS VESICLE FORMATION CETYLTRIMETHYLAMMONIUM BROMIDE RHEOLOGICAL PROPERTIES AQUEOUS-SOLUTION FLUID SALT COUNTERIONS MOLECULES
DOI	10.1016/j.jcis.2008.10.071
英文摘要	A simple and effective route to design pH-responsive viscoelastic wormlike micelles based on commercial compounds is reported. According to this route, pH-sensitive viscoelastic fluids can be easily obtained by introducing a pH-responsive hydrotrope into a surfactant solution. In this paper, the mixed system of cetyltrimethylammonium bromide (CTAB) and potassium phthalic acid (PPA) was studied in detail. This pH-sensitive fluid can be switched between a gellike state and a waterlike state within a narrow pH change. Rheology and DLS results revealed that the pH-sensitive flowing behavior was attributed to the microstructure transition between wormlike micelles and short cylindrical micelles. Combined with fluorescence anisotropy, NMR, and UV-vis, it was demonstrated that the pH response of viscoelastic fluid originated from the different binding abilities of hydrotrope to surfactant as pH varies. Furthermore, different kinds of hydrotropes can be utilized to prepare pH-responsive viscoelastic fluids in the desired pH areas. (C) 2008 Elsevier Inc. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000262760600029&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; SCI(E); EI; PubMed; 73; ARTICLE; 2; 449-455; 330
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150146]
专题	化学与分子工程学院生命科学学院
推荐引用方式 GB/T 7714	Lin, Yiyang,Han, Xue,Huang, Jianbin,et al. A facile route to design pH-responsive viscoelastic wormlike micelles: Smart use of hydrotropes[J]. 胶体与界面科学杂志,2009.
APA	Lin, Yiyang,Han, Xue,Huang, Jianbin,Fu, Honglan,&Yu, Cailan.(2009).A facile route to design pH-responsive viscoelastic wormlike micelles: Smart use of hydrotropes.胶体与界面科学杂志.
MLA	Lin, Yiyang,et al."A facile route to design pH-responsive viscoelastic wormlike micelles: Smart use of hydrotropes".胶体与界面科学杂志 (2009).