Poly(p-phenylene vinylene) prepared by chemical vapor deposition: Influence of monomer selection and reaction conditions on film composition and luminescence properties

被引：42

作者：

Vaeth, KM ^{[1
]}

Jensen, KF ^{[1
]}

机构：

[1] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

来源：

MACROMOLECULES | 1998年 / 31卷 / 20期

关键词：

D O I：

10.1021/ma9805755

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The influence of reaction conditions and monomer selection on the resulting film composition and luminescence properties of poly(p-phenylene vinylene) (PPV) prepared by chemical vapor deposition is investigated. Greater aliphatic hydrocarbon incorporation into the polymer is observed when ol,dibromo-p-xylene is used as the starting monomer, as compared to alpha,alpha'-dichloro-p-xylene. This difference has implications for the peak photoluminescence output of the resulting PPV films, with the Br-PPV shifted to higher energies compared to CI-PPV. From X-ray photoelectron spectroscopy, temperature dependent infrared spectroscopy, and Raman spectroscopy, the reaction pathway for aliphatic hydrocarbon incorporation into the polymer chain is deter mined to be fragmentation of the monomer during the pyrolysis step.

引用

页码：6789 / 6793

页数：5

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