Novel second-order nonlinear optical main-chain polyurethanes: Adjustable subtle structure, improved thermal stability and enhanced nonlinear optical property

被引：65
作者：
Li, Zhong'an
Dong, Shoucheng
Yu, Gul
Li, Zhen [1 ]
Liu, Yunqi
Ye, Cheng
Qin, Jingui
机构：
[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Organ Solids Labs, Beijing 100080, Peoples R China
来源：
POLYMER | 2007年 / 48卷 / 19期
基金：
中国国家自然科学基金;
关键词：
polyurethanes; nonlinear optical polymers; synthesis;
D O I：
10.1016/j.polymer.2007.07.052
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A series of main-chain polyurethanes containing sulfonyl-based NLO chromophores in the polymer backbone were prepared, the subtle structure of the chromophore moieties could be easily modified to adjust the property of the resultant polymers. The polymers exhibit improved stability of their enhanced NLO effects, besides their good processability, thermal stability, and relatively good transparency. The tested NLO properties of the polymers demonstrate that there is a suitable isolation group present for the sulfonyl-based chromophore to boost its microscopic value to possibly higher macroscopic NLO property efficiently, and BOP moieties are the best choice for this series of polymers to achieve optimized properties. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5520 / 5529
页数：10
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