Synthesis and optical investigations of low molecular weight alkoxy-substituted poly(p-phenylenevinylene)s

被引:42
作者
Babudri, F
Cicco, SR
Chiavarone, L
Farinola, GM
Lopez, LC
Naso, F
Scamarcio, G
机构
[1] Univ Bari, Dipartmento Chim, Ctr CNR Studi Metodol Innovat Sintesi Organ, I-70126 Bari, Italy
[2] Univ Bari, INFM, Dipartimento Interateneo Fis, I-70126 Bari, Italy
关键词
D O I
10.1039/a909780e
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Low molecular weight poly(2,5-dialkoxy-1,4-phenylenevinylene) polymers with branched, macrocyclic, and cyclic polyethereal alkoxy chains have been prepared by Stille cross-coupling reaction between suitable 2,5-dialkoxy-1,4-diiodobenzenes and (E)-1,2-bis(tributylstannyl)ethene. Spectral line narrowing in solution and film under high pulsed excitation intensity is reported. The measurement of the photoluminescence efficiency in film is carried out. The PPV with macrocyclic alkoxy substitution shows higher efficiency but lower damage threshold than the PPV derivative with open alkoxy chains. The potential of these materials in electroluminescent devices is discussed.
引用
收藏
页码:1573 / 1579
页数:7
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