Convenient Synthesis and Enhanced Second-order Nonlinear Optical Property of a Novel Hyperbranched Polymer |
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| Authors: | ZHU Zhi-Chao LI Zhong-An LI Qian-Qian ZENG Qi LI Zhen YE Cheng QIN Jin-Gui |
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| Affiliation: | 1 Hubei Key Laboratory on Organic and Polymeric Opto-electronic Materials, Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, China;2 Organic Solids Laboratories, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | A novel hyperbranched polymer ( 3 ) was prepared by copolymerization of tri‐aldehyde moieties with azo chromophores having two active methelene groups, from "A2+B3" 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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| Keywords: | hyperbranched polymer nonlinear optical material Kneovenagel reaction |
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