Disstacking of phthalocyanine in water by poly(ethylene oxide)

被引：28

作者：

Ngai, T

Zhang, GZ

Li, XY

Ng, DKP

Wu, C ^{[1
]}

机构：

[1] Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China

[2] Univ Sci & Technol China, Dept Chem Phys, Open Lab Bond Select Chem, Hefei, Anhui, Peoples R China

来源：

LANGMUIR | 2001年 / 17卷 / 05期

关键词：

D O I：

10.1021/la0011937

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

It was found that use of hydrophilic poly(ethylene oxide) (PEO) as a dispersion agent could disstack phthalocyanine IPC) in water and enhance its luminescence quantum yield. A combination of laser light scattering, UV-vis, and fluorescence spectroscopy was used to study the PEO/PC interaction. Our results revealed that, for a given weight concentration, long PEO chains were more effective than shorter ones to disstack PC into individual molecules. The PEO concentration dependence of UV-vis and fluorescence emission spectra showed that one long PEO chain (M-w similar to 10 000 g/mol) is as effective as 25 short PEO chains (M-w similar to 2000 g/mol).

引用

页码：1381 / 1383

页数：3

共 35 条

[11] Comparison of the photophysics of an aggregating and non-aggregating aluminium phthalocyanine system incorporated into unilamellar vesicles [J].