光敏减阻胶束体系流变反应动力学性质研究

Photo-sensitive micelle system is becoming the important focus of research in the field of photorheology developing in the recent years. In this project, the novel photo-sensitive micelle systems will be prepared according to the interaction between photo-sensitive counterions and traditional and Gemini cationic surfactans. The effects of sorts,structures and concentrations of surfactants and photo-sensitive counterions on the formation of photo-sensitive micelles will be investigated. The rheological irreversible and reversible photo-sensitive micelles will be obtained respectively.The surface activity, gas-liquid interfacial rheology,micelle solution rheology and consitutive equations for photo-sensitive micelles before and after photo-irradiation will be studied. The process of isomerization and rheogical reaction dynamics for photo-sensitive micelles will be investigated, and the equation for rheological reaction dynamics should be established.The drag reduction and flow field characteristics for photo-controlled micelles will be illustrated. The relationship between microstructure and influencing factors for photo-sensitive micelles will be observed and explained. The study in this project will provide good basis for improving the research and application of photo-sensitive drag reducing micelles rheology, energy saving and the development of photorheology in China.

光敏胶束体系是近年来新兴光流变学的重要研究内容。本课题通过光敏反离子与传统和Gemini阳离子表面活性剂相互作用研制光敏表面活性剂胶束新体系，探索表面活性剂和光敏反离子种类、结构和浓度对形成光敏胶束体系的影响；分别获得流变性可逆和不可逆的光敏粘弹性胶束体系。研究光照前后光敏胶束体系的表面特性、气液界面流变性，光敏胶束溶液流变特性和本构方程。考察光敏胶束体系光异构化过程和流变反应动力学性质，建立流变反应动力学方程；揭示光控胶束体系减阻特性和流场特征，明确光敏粘弹性胶束体系的微观结构与影响因素之间的关系。本研究将为拓展我国光敏减阻胶束流变学的研究和应用，促进节能，推动光流变学发展提供基础。

光敏胶束体系是近年来光流变学研究的重要内容。本项目主要开展光敏减阻胶束体系及其流变反应动力学性质研究。研制了光敏表面活性剂胶束新体系，考察了表面活性剂种类（包括十六烷基三甲基溴化铵CTAB、低聚阳离子表面活性剂丙撑基双（十八烷基二甲基氯化铵）Gemini 18-3-18、可聚合阳离子表面活性剂十六烷基二甲基烯丙基氯化铵CDAAC）和光敏反离子种类（包括反式氯代肉桂酸trans-ClCA、反式偶氮苯甲酸trans-ACA）及浓度对形成光敏胶束体系的影响；分别获得了流变性不可逆的CTAB/反式氯代肉桂酸光敏粘弹性胶束新体系,以及Gemini 18-3-18/反式偶氮苯甲酸、可聚合阳离子表面活性剂CDDAC/反式偶氮苯甲酸两种流变性可逆的光敏粘弹性胶束新体系。.研究了紫外光照射前后对光敏粘弹性胶束体系的流变特性、本构方程和气液界面流变性的影响，证实经紫外光照后光敏胶束溶液的粘弹性、触变性、相对粘度和界面流变性明显降低。对光敏粘弹性胶束体系（Gemini 18-3-18/反式偶氮苯甲酸、CDDAC/反式偶氮苯甲酸）分别经紫外光和可见光照射后具有流变性可逆性质。.首次揭示了CTAB/反式氯代肉桂酸光敏胶束、Gemini 18-3-18/反式偶氮苯甲酸、可聚合阳离子表面活性剂/反式偶氮苯甲酸光敏胶束体系紫外光照过程的流变特性，明确了光敏胶束体系光异构化过程和流变反应动力学性质，获得了流变反应动力学方程可表征光敏胶束体系紫外光照过程流变特性。进一步明确了Gemini 18-3-18/4-偶氮苯甲酸光敏胶束紫外光照前后的减阻性能和微观结构，证明紫外光照后胶束的减阻率显著降低，阐明了紫外光控光敏胶束体系的减阻特性。.本研究为拓展我国光敏减阻胶束过程流变学研究和应用，推动光流变学发展提供基础。