A PHOTOCHEMICAL STUDY OF POLY(3-HEXYLTHIOPHENE)

被引：101

作者：

HOLDCROFT, S

机构：

[1] Department of Chemistry and Biochemistry, Simon Fraser University, Burnaby, British Columbia

来源：

MACROMOLECULES | 1991年 / 24卷 / 17期

关键词：

D O I：

10.1021/ma00017a017

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(3-hexylthiophene) undergoes chain scission in organic solvents when irradiated with UV-vis light. Quantum yields of chain scission are dependent on the presence or absence of oxygen, the nature of the solvent, and the wavelength of incident light. Concurrent with photo chain scission is a photochemical 1,4 Diels-Alder addition of photosensitized singlet oxygen. The formation of photochemical residues in the main chain reduces the number of pi-electron-conjugated sequences and leads to quenching of the excited singlet state.

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页码：4834 / 4838

页数：5

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