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The Utilization of Isolation Chromophore in an “A 3 +B 2 ” Type Second‐Order Nonlinear Optical Hyperbranched Polymer
Author(s) -
Wu Wenbo,
Ye Cheng,
Qin Jingui,
Li Zhen
Publication year - 2013
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201300226
Subject(s) - chromophore , sonogashira coupling , polymer , materials science , nonlinear optical , nonlinear optics , polymer chemistry , nonlinear system , chemistry , photochemistry , organic chemistry , physics , composite material , catalysis , quantum mechanics , palladium
In this paper, a new nonlinear optical (NLO) hyperbranched polymer P1 is designed and synthesized successfully through one‐pot “A 3 +B 2 ” approach via a simple Sonogashira coupling reaction, in which isolation chromophore is introduced to improve its comprehensive performance such as NLO activity, optical transparency, and stability. For comparison, its analogs, P2 and P3 , just containing one type of chromophore, are also prepared. Although P1 cannot be well poled under our test conditions, its NLO coefficient is still much higher than its analogs P2 , P3, and the linear polyaryleneethynylene P4 , which also contains isolation chromophore, indicating the advantages of isolation chromophore and the three‐dimensional (3D) spatial isolation from the highly branched structure in the NLO field.