Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 34, Issue 13, Pages 1072-1079Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201300226
Keywords
dendritic strucutures; hyperbranched polymers; isolation chromophores; nonlinear optics
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Funding
- National Science Foundation of China [21034006]
- National Fundamental Key Research Program [2011CB932702]
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In this paper, a new nonlinear optical (NLO) hyperbranched polymer P1 is designed and synthesized successfully through one-pot A3+B2 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.
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