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Convenient Synthesis and Enhanced Second‐order Nonlinear Optical Property of a Novel Hyperbranched Polymer
Author(s) -
Zhu ZhiChao,
Li ZhongAn,
Li QianQian,
Zeng Qi,
Li Zhen,
Ye Cheng,
Qin JinGui
Publication year - 2007
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200790047
Subject(s) - chemistry , polymer , chromophore , thermal stability , copolymer , polymer chemistry , nonlinear optical , aldehyde , combinatorial chemistry , chemical engineering , nonlinear system , photochemistry , organic chemistry , catalysis , physics , quantum mechanics , engineering
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.