Anisotropic molecule dopant method for synthesizing a zero-birefringence polymer

A. Tagaya, S. Iwata, E. Kawanami, H. Tsukahara, Y. Koike

研究成果: Article

33 引用 (Scopus)

抜粋

We have demonstrated the anisotropic molecule dopant method for synthesizing a zero-birefringence polymer that showed no orientational birefringence at any orientation degree of polymer chains. In this method, rod-like molecules such as trans-stilbene having opposite polarizability anisotropy to that of a host polymer were chosen to compensate orientational birefringence. Orientational birefringence of poly(methyl methacrylate) was completely compensated by doping with some types of anisotropic molecules. Compensation of orientational birefringence for drawn films of the zero-birefringence polymers was analyzed by the rotating parallel nicols method, and orientation functions for polymer main chains and the anisotropic molecules were determined by IR dichroism, which showed that both the polymer chains and the anisotropic molecules were oriented almost equivalently in the drawing process resulting in complete compensation at any draw ratio. Furthermore, the high transparency (37.2 dB/km) of the zero-birefringence polymer was confirmed by light scattering measurements.

元の言語English
ページ(範囲)6117-6123
ページ数7
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
40
発行部数10
DOI
出版物ステータスPublished - 2001 10

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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