Synthesis, optical and redox properties of novel segmented cyano-PPV derivatives

被引：35

作者：

Tillmann, H ^{[1
]}

Hörhold, HH ^{[1
]}

机构：

[1] Univ Jena, Inst Organ Chem & Macromol Chem, D-07743 Jena, Germany

来源：

SYNTHETIC METALS | 1999年 / 101卷 / 1-3期

关键词：

poly(phenylene vinylene) and derivatives; absorption; photoluminescence; electrochemical methods;

D O I：

10.1016/S0379-6779(98)01414-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the detailed synthesis and physical characterization of two novel segmented PPV derivatives 6 and 7, that contain cyano-modified DSB-segments covalently linked with different ether groups. The polymers were synthesized by step growth polymerization via the KNOEVENAGEL reaction. They exhibit high molecular weights (Mn similar to 20,000 VPO) and can be cast from solution to give transparent, orange films with high PL quantum efficiencies (40 %). In comparison to the cyano-free polymers the electrochemical reduction potential is remarkably low (E-Red -1.30 V vs. Ag/AgCl in solid state), indicating a high electron affinity. Thus, the new polymers offer promise as electron transporting materials for photoconductive or light-emitting devices and as novel materials for X-(3) NLO applications.

引用

页码：138 / 139

页数：2

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