Article

New PVK-based nonlinear optical polymers: Enhanced nonlinearity and improved transparency

  1. Zhong'an Li1,
  2. Shoucheng Dong1,
  3. Pengcheng Li1,
  4. Zhen Li1,*,
  5. Cheng Ye2,
  6. Jingui Qin1

Article first published online: 24 MAR 2008

DOI: 10.1002/pola.22634

Issue

Journal of Polymer Science Part A: Polymer Chemistry

Journal of Polymer Science Part A: Polymer Chemistry

Volume 46, Issue 9, pages 2983–2993, 1 May 2008

Additional Information

How to Cite

Li, Z., Dong, S., Li, P., Li, Z., Ye, C. and Qin, J. (2008), New PVK-based nonlinear optical polymers: Enhanced nonlinearity and improved transparency. Journal of Polymer Science Part A: Polymer Chemistry, 46: 2983–2993. doi: 10.1002/pola.22634

Author Information

  1. 1

    Department of Chemistry, Wuhan University, Wuhan 430072, China

  2. 2

    Organic Solids Laboratories, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China

*Department of Chemistry, Wuhan University, Wuhan 430072, China

Publication History

  1. Issue published online: 24 MAR 2008
  2. Article first published online: 24 MAR 2008
  3. Manuscript Accepted: 22 JAN 2008
  4. Manuscript Received: 11 DEC 2007

Funded by

  • National Science Foundation of China. Grant Numbers: 20674059, 20402011
  • National Fundamental Key Research Program and Hubei Province

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Keywords:

  • functionalization of polymers;
  • NLO;
  • nonlinear optics;
  • polymer reaction;
  • poly(vinylcarbazole);
  • synthesis

Graphical Abstract

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By applying the recent proposed concept of “suitable isolation groups,” new PVK-based NLO polymers, in which the subtle structure of the chromophore moieties in the side chain could be modified to adjusted the macroscopic NLO effects, were conveniently obtained through a post functionalization approach. The blue-shifted maximum absorptions of the polymers, in comparison with the corresponding free chromophore small molecules, indicated the presence of the effective site-isolation effect, which could boosted the second harmonic generation (SHG) coefficients of d33 value up to 28.6 pm/V. Their good optical transparency and enhanced nonlinearity made them good candidates for the practical photonic applications.

Abstract

A series of poly(vinylcarbazole)-based polymers containing sulfonyl-based nonlinear optical chromophores as the side chains were prepared conveniently through a postfunctionalization approach. In the polymers, the subtle structure of the chromophore moieties could be easily modified by the introduction of different isolation group, to adjust the property of the resultant polymers. The polymers exhibited good optical transparency, besides their good processability and thermal stability. The poled polymer films exhibited large second harmonic generation (SHG) coefficients of d33 values (up to 28.6 pm/V) with excellent thermal stability (about 90% of the maximal SHG coefficients remain at ∼ 110 °C). © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 2983–2993, 2008

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