阳离子聚合物诱导的TPPS超分子自组装行为  

Supramolecular self-assembly behavior of TPPS induced by cationic polymers

作　　者：严峰[1,2] 赵娟 张自新 王明霞[1,4] 陈晓雯 YAN Feng;ZHAO Juan;ZHANG Zi-xin;WANG Ming-xia;CHEN Xiao-wen(State Key Laboratory of Separation Membranes and Membrane Processes,Tiangong University,Tianjin 300387,China;School of Chemistry and Chemical Engineering,Tiangong University,Tianjin 300387,China;Research Institute of Experiment and Detection,Xinjiang Oilfield Company,Karamay 834000,Xinjiang,China;School of Material Science and Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学省部共建分离膜与膜过程国家重点实验室,天津300387 [2]天津工业大学化学与化工学院,天津300387 [3]新疆油田公司实验检测研究院,新疆克拉玛依834000 [4]天津工业大学材料科学与工程学院,天津300387

出　　处：《天津工业大学学报》2019年第5期33-38,44,共7页Journal of Tiangong University

基　　金：国家自然科学基金资助项目(21808166);天津市自然科学基金资助项目(18JCYBJC89300)

摘　　要：为研究不同阳离子聚合物对5,10,15,20-四(4-磺酸基苯基)卟啉(TPPS)在水溶液中的自组装行为的诱导作用,采用质量分数为3%的季铵化壳聚糖、聚环氧氯丙烷-胺阳离子聚合物诱导TPPS的自组装行为,并通过紫外可见(UV-vis)光谱对其进行表征。结果表明:在季铵化壳聚糖诱导下,TPPS在溶液pH低于4时自组装形成J-型聚集体,pH高于4时以去质子化单体形式存在;在聚环氧氯丙烷-胺阳离子聚合物诱导下,TPPS在溶液pH低于3时自组装形成J-型聚集体,高于3时自组装转化为H-型聚集体;无阳离子聚合物诱导时,TPPS仅在pH为1时的高酸性条件下才自组装为J-型聚集体;电中性聚合物聚乙烯醇对TPPS分子自组装无明显影响;阳离子聚合物诱导下的TPPS分子自组装不受TPPS浓度的影响。In order to investigate the inducement of different cationic polymers to the self-assembly behavior of 5,10,15,20-tetrakis(4-sulfophenyl)porphyrin (TPPS) in aqueous solution,quaternized chitosan,polyepichlorohydrin-amine cationic polymer with mass fraction of 3% were used to induce the self-assembly behavior of TPPS,which was characterized by Ultraviolet-visible(UV-vis) spectrum. The results show that J-type aggregate is obtained when the pH is lower than 4,and deprotonated TPPS is found at pH higher than 4 under the inducement of quaternized chitosan cationic polymer. Under the inducement of polyepichlorohydrin-amine cationic polymer,J-type aggregate is obtained when the pH is lower than 3,and H-type aggregate is found at pH higher than 3. J-type aggregate could only be obtained under high acid conditions such as pH=1 without the inducement of cationic polymers. Moreover,it is found that there is no significant effect on the self-assemble of TPPS with the inducement of electrically neutral polymer polyvinyl alcohol. In addition,the concentration of TPPS makes little difference in the TPPS molecular self-assembly under the inducement of cationic polymers.

关 键 词：5 10 15 20-四(4-磺酸基苯基)卟啉(TPPS) 超分子自组装 阳离子聚合物 诱导 J-型聚集体 

分 类 号：TQ25[化学工程—有机化工]