Synthesis of a zero-birefringence optical polymer by doping with strontium carbonate crystal

Kenyu Nakama, Hisanori Ohkita, Akihiro Tagaya, Yasuhiro Koike

Research output: Contribution to conferencePaper

Abstract

We have proposed the "birefringent crystal dopant method" as the method of eliminating the orientational birefringence of poly[methylmethacrylate (MMA) / benzylmethacrylate (BzMA) = 78/22 (wt/wt)] (P(MMA/BzMA)). We synthesized SrCO3 with various aspect ratios and lengths by a homogeneous precipitation technique using urea with the various reaction times. SrCO3 were doped into P(MMA/BzMA) films. The films were uniaxially heat-drawn at 130°C, 4 mm/min. The orientational birefringence of the drawn P(MMA/BzMA) film at 633nm was compensated by doping with 0.5wt.% of SrCO 3 (an average length of major axis 290 nm and an average aspect ratio of about 3.2).

Original languageEnglish
Number of pages1
Publication statusPublished - 2006 Oct 19
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: 2006 May 242006 May 26

Other

Other55th SPSJ Annual Meeting
CountryJapan
CityNagoya
Period06/5/2406/5/26

Keywords

  • Birefringent crystal dopant method
  • Orientational birefringence
  • Strontium carbonate

ASJC Scopus subject areas

  • Engineering(all)

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    Nakama, K., Ohkita, H., Tagaya, A., & Koike, Y. (2006). Synthesis of a zero-birefringence optical polymer by doping with strontium carbonate crystal. Paper presented at 55th SPSJ Annual Meeting, Nagoya, Japan.