Photorheology and rheokinetics of CTAB/chlorocinnamic acid micelles  

十六烷基三甲基溴化铵/氯代肉桂酸胶束光流变性和光流变动力学（英文）

作　　者：方波 吕婷阳 王进爽 何良好 卢海伟 郁丽程 陈洁 

机构地区：[1]Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Lab of Chemical Engineering Rheology, East China University of Science and Technology

出　　处：《Chinese Journal of Chemical Engineering》2015年第10期1640-1646,共7页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(21273072)

摘　　要：The photosensitive micellar system with prospect in drag reduction and heat transfer enhancement has been the research focus of science and industry.In this paper,a new type of photosensitive micellar system formed by cetyl trimethylammonium bromide(CTAB) and trans-chlorocinnamic acid(trans-CICA) was investigated.The effects of counter-ion concentration,surfactant concentration,UV irradiation time,and the position of substituent groups of counter-ion on photorheological properties were discussed.The results indicate that after UV irradiation the relative viscosity and thixotropy of micellar systems reduce obviously.At the same time,the relative viscosity of micelle systems and concentration of trans-CICA decline during UV irradiation time.The flow curves of micellar solutions before and after UV irradiation could be described by non-linear co-rotational Jeffreys model correctly.The rheokinetic equation was firstly established to describe the relationship between relative viscosity of micelle systems and conversion of trans-CICA.The photosensitive micellar system with prospect in drag reduction and heat transfer enhancement has been the research focus of science and industry.In this paper,a new type of photosensitive micellar system formed by cetyl trimethylammonium bromide（CTAB） and trans-chlorocinnamic acid（trans-CICA） was investigated.The effects of counter-ion concentration,surfactant concentration,UV irradiation time,and the position of substituent groups of counter-ion on photorheological properties were discussed.The results indicate that after UV irradiation the relative viscosity and thixotropy of micellar systems reduce obviously.At the same time,the relative viscosity of micelle systems and concentration of trans-CICA decline during UV irradiation time.The flow curves of micellar solutions before and after UV irradiation could be described by non-linear co-rotational Jeffreys model correctly.The rheokinetic equation was firstly established to describe the relationship between relative viscosity of micelle systems and conversion of trans-CICA.

关 键 词：Photosensitive micellar system Cetyl trimethylammonium bromide trans-chlorocinnamic acid Rheokinetic equation Photorheological property 

分 类 号：O648.1[理学—物理化学]