New hyperbranched second‐order nonlinear optical poly(arylene‐ethynylene)s containing pentafluoroaromatic rings as isolation group: Facile synthesis and enhanced optical nonlinearity through Ar‐ArF self‐assembly effect |
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| Authors: | Wenbo Wu Zhichao Zhu Guofu Qiu Cheng Ye Jingui Qin Zhen Li |
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| Institution: | 1. Department of Chemistry, Hubei Key Laboratory on Organic and Polymeric Opto‐Electronic Materials, Wuhan University, Wuhan 430072, China;2. College of Pharmacy, Wuhan University, Wuhan 430072, China;3. Organic Solids Laboratories, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | In this article, a facile route was designed to prepare four new hyperbranched poly(arylene‐ethynylene)s containing azo‐chromophore moieties through one‐pot “A2+B3” approach via simple Sonogashira coupling reaction. The polymers were all soluble in organic solvents and demonstrated good nonlinear optical (NLO) properties, because of the three‐dimensional spatial isolation effect of these hyperbranched polymers. Due to the different B3‐type comonomer, the self‐assembly effect of pentafluoroaromatic in the interior of these polymers were different, leading to the different trends of the NLO activities. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012 |
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| Keywords: | functionalization of polymers hyperbranched NLO |
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