Preparation and photoactivity of thermosensitive polymer supported metallophthalocyanine

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 tetraam...

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Bibliographic Details
Published inScience China. Chemistry Vol. 51; no. 6; pp. 570 - 576
Main Authors Chen, WenXing, Liu, Fan, Lü, WangYang, Shen, XiaoYuan, Yao, YuYuan, Xu, MinHong
Format Journal Article
LanguageEnglish
Published Heidelberg SP Science in China Press 01.06.2008
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Metal phthalocyanines
Photodegradation
Polyisopropyl acrylamide
Polymers
Zinc
zinc phthalocyanine
thermosensitive polymer
singlet oxygen
photoactivity
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Summary: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).
ISSN:1006-9291
1674-7291
1862-2771
1869-1870
DOI:10.1007/s11426-008-0048-x