Design and synthesis of a zero-photoelastic birefringence polymer with a high glass-transition temperature by a random copolymerization method

Houran Shafiee, Akihiro Tagaya, Yasuhiro Koike

Research output: Contribution to journalArticle

5 Citations (Scopus)


We designed and synthesized a zero-photoelastic birefringence polymer that had a high glass-transition temperature (Tg) by introducing trans-stilbene units into the side chains of the copolymer by a random copolymerization method. The concentration of the trans-stilbene units required to compensate for photoelastic birefringence in the random copolymer was lower than that required in a polymer prepared by an anisotropic molecule dopant method, because the presence of an anisotropic moiety in the side chain of the polymer has a greater effect than an anisotropic molecule doped in the polymer. Furthermore, the polymer with trans-stilbene units in side chains showed a higher Tg than the polymer containing an anisotropic dopant. We conclude that the introduction of an anisotropic molecule of a similar or larger size to trans-stilbene into the side chain gives a polymer with a high T g.

Original languageEnglish
Pages (from-to)306-312
Number of pages7
JournalPolymer Journal
Issue number3
Publication statusPublished - 2011 Mar 1
Externally publishedYes



  • anisotropic molecule dopant method
  • glass-transition temperature
  • photoelastic birefringence
  • polarizability anisotropy
  • random copolymerization method
  • trans-stilbene methacrylate

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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