Enhanced luminance and thermal properties of poly(phenylenevinylene) copolymer presenting side-chain-tethered silsesquioxane units

被引：49

作者：

Chou, CH ^{[1
]}

Hsu, SL ^{[1
]}

Yeh, SW ^{[1
]}

Wang, HS ^{[1
]}

Wei, KH ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30049, Taiwan

来源：

MACROMOLECULES | 2005年 / 38卷 / 22期

关键词：

D O I：

10.1021/ma051055u

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We have synthesized, using the Gilch polymerization method, a new series of high-brightness, soluble copolymers (POSS-PPV-co-MEHPPV) of poly(p-phenylenevinylene) (PPV) containing side-chain-tethered polyhedral oligomeric silsesquioxane (POSS) pendent units and poly(2-methoxy-5-[2-ethylhexyloxy]-1,4-phenylenevinylene) (MEHPPV). This particular molecular architecture of POSS-PPV-co-MEHPPV copolymers possesses not only a larger quantum yield (0.85 vs 0.19) but also higher degradation and glass transition temperatures relative to those of pure MEHPPV. The maximum brightness of a double-layered-configured light-emitting diode (ITO/PEDOT/emissive polymer/Ca/Al) incorporating a copolymer of MEHPPV and 10 mol % PPV-POSS was 5 times as large as that of a similar light-emitting diode incorporating pure MEHPPV (2196 vs 473 cd/m(2)).

引用

页码：9117 / 9123

页数：7

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