Article

Synthesis and nonlinear optical properties of polyacetylenes containing oxadiazole and thiophene pendant groups with high thermal stability

  1. Xin Wang1,*,
  2. Yongxin Yan1,
  3. Tianbao Liu1,
  4. Xinyan Su2,
  5. Liwu Qian1,
  6. Yinglin Song3,
  7. Hongyao Xu2

Article first published online: 13 OCT 2010

DOI: 10.1002/pola.24358

Issue

Journal of Polymer Science Part A: Polymer Chemistry

Journal of Polymer Science Part A: Polymer Chemistry

Volume 48, Issue 23, pages 5498–5504, 1 December 2010

Additional Information

How to Cite

Wang, X., Yan, Y., Liu, T., Su, X., Qian, L., Song, Y. and Xu, H. (2010), Synthesis and nonlinear optical properties of polyacetylenes containing oxadiazole and thiophene pendant groups with high thermal stability. J. Polym. Sci. A Polym. Chem., 48: 5498–5504. doi: 10.1002/pola.24358

Author Information

  1. 1

    School of Chemistry & Centre of Chemical Materials and Engineering, Chizhou University, Chizhou 247000, China

  2. 2

    College of Material Science and Engineering & State Key Laboratory of Chemical Fibers and Polymeric Materials, Donghua University, Shanghai 201620, China

  3. 3

    Departments of Physics, Suzhou University, Suzhou 215008, China

*School of Chemistry & Centre of Chemical Materials and Engineering, Chizhou University, Chizhou 247000, China

Publication History

  1. Issue published online: 28 OCT 2010
  2. Article first published online: 13 OCT 2010
  3. Manuscript Accepted: 30 AUG 2010
  4. Manuscript Received: 18 AUG 2010

Funded by

  • Anhui Provincial Natural Science Foundation. Grant Number: 090414190
  • Anhui Provincial University Natural Science Foundation. Grant Numbers: KJ2009A122, KJ2010B135
  • Key Lab of Novel Thin Film Solar Cells. Grant Number: KF200901
  • Chinese Academy of Sciences

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Keywords:

  • nonlinear optical;
  • oxadiazole;
  • polyacetylenes;
  • thermal properties;
  • thiophene

Abstract

A series of random copolymers poly(3-ethynylthiophene)-copoly(2-(4-decyloxyphenyl)-5-(4-ethynylphenyl)-1,3,4-oxadiazole) with different oxadiazole content (P2–P4) and homopolymer poly(3-ethynylthiophene) (P1) as well as poly(2-(4-decyloxyphenyl)-5-(4-ethynylphenyl)-1,3,4-oxadiazole) (P5) were prepared. The copolymers (P2–P4) are completely soluble in common organic solvents. The structures and properties of all polymers were characterized and evaluated by FTIR, 1H NMR, 13C NMR, TGA, UV, PL, GPC, and nonlinear optical (NLO) analyses. The incorporation of diaryl-oxadiazole into polyacetylene-containing thiophene significantly endows copolymers with higher thermal stability, which may origin from the synergetic effect of the “jacket effect” of diaryl-oxadiazole units and the effect of retarding or eliminating a few 6π-electrocycliaztion proceeds of oxadiazole-containing polyacetylene due to the hindrance of thiophene units. When the copolymer (P3) posses more regular alternating thiophene pendants and oxadiazole pendants arrangement along the polymer backbone, it shows good thermal stability (Td up to 388 °C) and larger third-order nonlinear optical susceptibility (χ(3) up to 11.0 × 10−11 esu). © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2010

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