Extremely pH-sensitive fluids based on a rationally designed simple   amphiphile

doi:10.1039/c2sm25334h

CORC > 北京大学 > 化学与分子工程学院

	Extremely pH-sensitive fluids based on a rationally designed simple amphiphile
	Zhao, Li ; Wang, Ke ; Xu, Limin ; Liu, Yu ; Zhang, Su ; Li, Zhibo ; Yan, Yun ; Huang, Jianbin
刊名	软性材料
	2012
关键词	VISCOELASTIC WORMLIKE MICELLES STIMULI RESPONSIVE POLYMERS SURFACTANT SOLUTIONS GEMINI SURFACTANT DRUG-DELIVERY VESICLE TRANSITION AQUEOUS-SOLUTIONS TEMPERATURE MORPHOLOGY VISCOSITY
DOI	10.1039/c2sm25334h
英文摘要	In this paper, we report on an extremely pH sensitive fluid based on a simple ammonium surfactant synthesized in our lab. The fluid was obtained simply by the addition of NaOH into a 100 mM N-cetyl-N,N-dihydroxyethylammonium bromide (CDHEAB) aqueous solution. The viscosity of this aqueous solution may change 10(6)-fold within a narrow pH range of 4.97 to 5.78. The extremely pH-sensitive rheological performance was attributed to the critical molecular structure that allows the combination of strong hydrophobic interactions and effective hydrogen bonding upon protonation. Based on the understanding of the molecular origin of this superior rheological behavior, we are able to manipulate the responsive threshold value of the pH, which provides great advantage in the fine tuning and design of pH responsive fluids with desired pH values. Our results demonstrate that easy-to-process, extremely pH sensitive fluids can be produced by proper molecular design which covers the delicate balance between hydrophobic interactions and the electrostatic effect.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000307596400006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; Materials Science, Multidisciplinary; Physics, Multidisciplinary; Polymer Science; SCI(E); 11; ARTICLE; 35; 9079-9085; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150975]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhao, Li,Wang, Ke,Xu, Limin,et al. Extremely pH-sensitive fluids based on a rationally designed simple amphiphile[J]. 软性材料,2012.
APA	Zhao, Li.,Wang, Ke.,Xu, Limin.,Liu, Yu.,Zhang, Su.,...&Huang, Jianbin.(2012).Extremely pH-sensitive fluids based on a rationally designed simple amphiphile.软性材料.
MLA	Zhao, Li,et al."Extremely pH-sensitive fluids based on a rationally designed simple amphiphile".软性材料 (2012).