J- and H-Aggregation of 5,10,15,20-Tetrakis-(4-sulfonatophenyl)porphyrin within Stimuli Responsive Complex Micelles via Electrostatic Interaction

被引：1
|
作者：
Yu, Qingyuan [2 ]
Wu, Chenglin [1 ]
Wang, Fang [1 ]
机构：
[1] Taizhou Univ, Sch Pharmaceut & Chem Engn, Taizhou 317000, Zhejiang, Peoples R China
[2] First Middle Sch Taizhou City, Taizhou 317000, Zhejiang, Peoples R China
来源：
ASIAN JOURNAL OF CHEMISTRY | 2014年 / 26卷 / 14期
关键词：
Core-shell; 5,10,15,20-tetrakis-(4-Sulfonatophenyl)porphyrin; J-Aggregates; H-Aggregates; PORPHYRIN; COPOLYMER; TETRAKIS(4-SULFONATOPHENYL)PORPHYRIN; MICELLIZATION; FLUORESCENCE;
D O I：
10.14233/ajchem.2014.16094
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In aqueous solution, complex micelles were prepared by micellization of 5,10,15,20-tetrakis-(4-sulfonatophenyl)porphyrin (TPPS) and poly(2-(dimethylamino)ethyl methacrylate)-b-poly(N-isopropylacrylamide) (PDMAEMA-b-PNIPAM) at pH <7 based on electrostatic interaction. The resultant complex micelles had a core-shell structure with complex TPPS/PDMAEMA as a core and PNIPAM as a shell. The anionic TPPS in the micellar core formed J-aggregates (pH 1.5) and H-aggregates (pH 3 -pH 7) due to electrostatic interaction with positive charged PDMAEMA. When the temperature was above the lower critical solution temperature (LCST) of PNIPAM, the thermo-responsive block collapsed on the complex micellar core, while the aggregation form of TPPS remained unchanged.
引用
收藏
页码：4269 / 4272
页数：4
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