New Second-Order Nonlinear Optical Polymers Derived from AB2 and AB Monomers via Sonogashira Coupling Reaction

被引：22
作者：
Li, Zhong'an [1 ]
Wu, Wenbo [1 ]
Ye, Cheng [2 ]
Qin, Jingui [1 ]
Li, Zhen [1 ]
机构：
[1] Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Organ Solids Labs, Beijing 100080, Peoples R China
来源：
MACROMOLECULAR CHEMISTRY AND PHYSICS | 2010年 / 211卷 / 08期
基金：
美国国家科学基金会;
关键词：
hyperbranched polymer; monomers; nonlinear optics; Sonogashira coupling reaction; synthesis; MAIN-CHAIN POLYURETHANES; HYPERBRANCHED POLYMERS; CLICK CHEMISTRY; AZOBENZENE CHROMOPHORES; CONVENIENT SYNTHESIS; DENDRITIC POLYMERS; THERMAL-STABILITY; HIGHLY EFFICIENT; FACILE SYNTHESIS; BUILDING-BLOCKS;
D O I：
10.1002/macp.200900605
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this paper, a facile route was designed to prepare a new AB(2)-type polymer P1 via simple Sonogashira coupling reaction, also its corresponding linear analog (P2) was obtained from AB monomer for comparison. Despite the relatively lower loading density of the effective chromophore moieties, P1 demonstrated higher second-harmonic coefficient (153.9 pm . V-1) than that of P2 (98.2 pm . V-1), due to the three-dimensional spatial isolation effect of the hyperbranched structure. The good results of P2 also indicated that the ladder shape may help to solve the problem existing in main-chain polymers, the low poling efficiency.
引用
收藏
页码：916 / 923
页数：8
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