反离子对胶团生长影响的研究

doi:10.3866/PKU.WHXB19870205

CORC > 北京大学 > 化学与分子工程学院

	反离子对胶团生长影响的研究; SPECIFICITY OF SOME COUNTER IONS TO INDUCE THE GROWTH OF MICELLES
	吴佩强 ; 柳萍 ; 周祖康
刊名	物理化学学报
	1987
关键词	反离子胶团粘度法光散射粘度测量支配球热力学模型感胶离子序水溶液体系 NaBr
DOI	10.3866/PKU.WHXB19870205
英文摘要	本文采用粘度法研究反离子对胶团生长的影响。通过粘度测量,利用Missel等提出的热力学模型,求算了支配球-棒转变的平衡常数K和胶团的重均聚集数nw.同价反离子促使溴化十四烷基吡啶胶团长大的能力为ClO_3~->NO_3~->Br~-.在0.5molL~(-1)的NaBr和KNO_3的介质中.参数K在一定的胶团浓度范围内保持为常量,K值与 w值随活性剂浓度的变化,与光散射相应结果相当一致;在0.5molL~(-1)KClO_3介质中,K值明显地有浓度依赖性,所得 w值两法相差较大,上述模型不再适用。; Viscosity measurements havebeen made to determine the specificity of some counterions to induce the growth of micelles. From the intrinsic viscosity values obtained several basic micellar parameters including the thermodynamic parameter K, governing the sphere-to-rod transition in the micelle growth process, and the weight average aggregation number of polydisperse micelles. (Sic) were calculated based on a thermodynamic model for miceilization developed by Missel et al. The elongation of tetradecylpyridinism bromide micelles in aqueous solutions are induced by the monovalent anions Br-, NO3-, ClO3-, the efficiency is ClO3->NO3->Br-. (sic) both 0.5 mol L-1NaBr and KNO3 Solutions a constancy of K was observed over a suitable range of ampnipnile concentrations. The parameter K as well as the parameter (sic) calculated as a function of amphiphile concentrations are in good agreement with those obtained by static and dynamic light scattering techniques. In 0.5mol L-1KClO3 solution, the parameter K becomes remarkably concentration-dependent and an obvious discrepancy in the determined parameter n(w) between the two methods in observed, which demonstrates the invalidity of the model.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000207569200005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 0; 02; 129-135; 3
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/84245]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	吴佩强,柳萍,周祖康. 反离子对胶团生长影响的研究, SPECIFICITY OF SOME COUNTER IONS TO INDUCE THE GROWTH OF MICELLES[J]. 物理化学学报,1987.
APA	吴佩强,柳萍,&周祖康.(1987).反离子对胶团生长影响的研究.物理化学学报.
MLA	吴佩强,et al."反离子对胶团生长影响的研究".物理化学学报 (1987).