Design of zero-zero-birefringence polymers in methacrylate copolymer systems containing trichloroethyl methacrylate

Shuhei Iwasaki, Zen Satoh, Houran Shafiee, Akihiro Tagaya, Yasuhiro Koike

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Polymers that exhibit neither orientational nor photoelastic birefringence, called zero-zero-birefringence polymers, are candidate materials for preparing optical components of liquid crystal displays (LCDs). Analyzing the birefringences for various methacrylate polymers is an issue of current importance in developing zero-zero-birefringence polymers with appropriate characteristics for LCDs. The researchers have investigated different types of birefringence for poly(2,2,2-trichloroethyl methacrylate) (PTCEMA) and have shown that PTCEMA exhibits negative orientational and photoelastic birefringences. By using TCEMA as a comonomer, a zero-zero-birefringence polymer having much higher glass transition temperature (Tg) compared with previous researches has been prepared by ternary copolymerization. Moreover, the researchers have fabricated zero-zero-birefringence polymers in a quaternary system containing TCEMA. The property analyses indicate that Tg can be controlled while maintaining the zero-zero-birefringence property, which shows that designing a quaternary zero-zero-birefringence polymer permits selective synthesis with the most appropriate characteristics.

Original languageEnglish
Pages (from-to)138-144
Number of pages7
JournalJournal of Applied Polymer Science
Issue number1
Publication statusPublished - 2013 Oct 5


  • copolymers
  • films
  • optical properties
  • polyesters

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry


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