阳离子表面活性剂与偶氮苯构筑的光响应流体的流变行为

发布时间：2019-04-09 13:51

【摘要】：通过流变学的方法研究了十六烷基三甲基水杨酸铵(C_(16)TASal)与偶氮苯(AZB)构筑的光响应流体的流变特性.结果表明,在一般条件下,由于拟网络结构的形成,C_(16)TASal体系形成高黏弹性的胶束溶液.当体系中加入偶氮苯后,溶液的黏度大大降低.由于偶氮苯的顺-反光异构化性能,在紫外-可见光照射下,C_(16)TASal/AZB混合体系的黏弹性能被可逆地调控.与十六烷基三甲基溴化铵(CTAB)/NaSal/AZB混合体系的对比实验发现,后者在紫外光照射下所有溶液黏度均降低,当用可见光照射时,体系的黏度未发现可逆性能.用紫外、红外、核磁共振光谱以及透射电子显微镜等技术辅助研究混合体系的光敏特性及微观结构.
[Abstract]:The rheological properties of photoresponsive fluids constructed by cetyltrimethyl ammonium salicylate (C16) TASal) and azobenzene (AZB) were studied by rheological method. The results show that C _ (16) TASal system forms highly viscoelastic micelle solution under general conditions due to the formation of quasi-network structure. When azobenzene was added to the system, the viscosity of the solution decreased greatly. Because of the cis-reflective isomerization of azobenzene, the viscoelastic properties of C16 TASal/AZB mixed system are reversibly regulated under UV-visible light irradiation. Compared with the mixed system of cetyltrimethylammonium bromide (CTAB) and NaSal/AZB, the viscosity of the latter solution decreased under UV irradiation, and no reversibility energy was found when the solution was irradiated by visible light. The characteristics and microstructure of Guang Min were studied by UV, IR, NMR and TEM.
【作者单位】：聊城大学化学化工学院山东省化学储能与新型电池技术重点实验室;
【基金】：国家自然科学基金(21473084,21473085,21073081) 聊城大学重点科研基金(318011402)、聊城大学重点教学研究课题(31161518)和聊城大学实验技术研究项目(LDSY2014008)资助
【分类号】：O647.2

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