Preparation and photoactivity of thermosensitive polymer supported metallophthalocyanine  

作　　者：CHEN WenXing LIU Fan LU WangYang SHEN XiaoYuan YAO YuYuan XU MinHong 

机构地区：[1]Key Laboratory of Advanced Textile Materials and Manufacturing Technology,Ministry of Education of China,Zhejiang Sci-Tech University,Hangzhou 310018,China

出　　处：《Science China Chemistry》2008年第6期570-576,共7页中国科学（化学英文版）

基　　金：the National Natural Science Foundation of China(Grant No.20574061);the Program for New Century Excellent Talents in University(Grant No.040559);the Program for Changjiang Scholars and Innovative Research Team in University(Grant No.0654)

摘　　要：A novel reactive metallophthalocyanine derivative, zinc tetra(2,4-dichloro-1,3,5-triazine)aminophthalocyanine (Zn-TDTAPc), was prepared and immobilized on poly(N-isopropylacrylamide) (PNIPAAm) by covalent bonding to obtain a thermosensitive polymer (Zn-TDTAPc-g-PNIPAAm). Compared with zinc tetraaminophthalocyanine (Zn-TAPc), Zn-TDTAPc-g-PNIPAAm exhibits excellent solubility in water and in most organic solvents. Furthermore, it has a special thermosensitive property in water and the lower critical solution temperature (LCST) is 34.1°C. It was found that both dissolved and precipitated Zn-TDTAPc-g-PNIPAAm present high photoactivity evidenced by the experiment of photocatalytic degradation of 1, 3-diphenylisobenzofuran (DPBF) in the presence of Zn-TDTAPc-g-PNIPAAm. These properties suggest that it can be used potentially in photodynamic therapy (PDT).A novel reactive metallophthalocyanine derivative,zinc tetra(2,4-dichloro-1,3,5-triazine)aminophthalo-cyanine(Zn-TDTAPc),was prepared and immobilized on poly(N-isopropylacrylamide)(PNIPAAm) by covalent bonding to obtain a thermosensitive polymer(Zn-TDTAPc-g-PNIPAAm).Compared with zinc tetraaminophthalocyanine(Zn-TAPc),Zn-TDTAPc-g-PNIPAAm exhibits excellent solubility in water and in most organic solvents.Furthermore,it has a special thermosensitive property in water and the lower critical solution temperature(LCST) is 34.1℃.It was found that both dissolved and precipitated Zn-TDTAPc-g-PNIPAAm present high photoactivity evidenced by the experiment of photocatalytic degra-dation of 1,3-diphenylisobenzofuran(DPBF) in the presence of Zn-TDTAPc-g-PNIPAAm.These proper-ties suggest that it can be used potentially in photodynamic therapy(PDT).

关 键 词：ZINC PHTHALOCYANINE THERMOSENSITIVE polymer PHOTOACTIVITY SINGLET oxygen 

分 类 号：O631.3[理学—高分子化学]