Compensation of the photoelastic birefringence of a polymer by doping with an anisotropic molecule

H. Ohkita, K. Ishibashi, D. Tsurumoto, A. Tagaya, Y. Koike

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We report on a method to compensate the photoelastic birefringence of a polymer. In this method, a rod-like molecule that has a polarizability anisotropy was chosen and doped in a polymer. We demonstrated this method by compensating the negative photoelastic birefringence of poly(methylmethacrylate) at a wavelength of 633 nm. Homogeneous doping with 2.2 wt.∈% of trans-stilbene almost eliminated the photoelastic birefringence of the polymer. The photoelastic coefficient of the synthesized zero-photoelastic birefringence polymer was 0.057×10-12 Pa-1. We found that the photoelastic birefringence of poly(methylmethacrylate) was compensated by the motion of trans-stilbene in the polymer by the analysis of the infrared absorption spectrum.

Original languageEnglish
Pages (from-to)617-620
Number of pages4
JournalApplied Physics A: Materials Science and Processing
Issue number3
Publication statusPublished - 2005 Aug 1


ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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