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Convenient Synthesis and Enhanced Second-order Nonlinear Optical Property of a Novel Hyperbranched Polymer

✍ Scribed by Zhi-Chao Zhu; Zhong-An Li; Qian-Qian Li; Qi Zeng; Zhen Li; Cheng Ye; Jin-Gui Qin

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
55 KB
Volume
25
Category
Article
ISSN
0256-7660

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✦ Synopsis

Abstract

A novel hyperbranched polymer (3) was prepared by copolymerization of tri‐aldehyde moieties with azo chromophores having two active methelene groups, from "A~2~+B~3~" approach based on simple Kneovenagel reaction. For comparison, its analogue linear polymer (5) was also synthesized. The two polymers are soluble in common organic solvents, and exhibit good thermal stability. Interestingly, the hyperbranched polymer demonstrates dramatically enhanced second‐order nonlinear optical property with comparison to its linear analogue.

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