New Reactive Liquid-crystalline Poly(aminourethane)s and Their Metal-complexed Family

• Ujiie Seiji

  Department of Applied Chemistry, Faculty of Engineering, Oita University

• Shimada Genichiro

  Department of Materials Science and Production Engineering, Graduate School of Engineering, Oita University

• Nata Masanori

  Department of Applied Chemistry, Faculty of Engineering, Oita University

Abstract

New liquid-crystalline poly(aminourethane)s (LCPU(T)) were synthesized by the polyaddition of a mesogenic diol and tolylene-2,4-diisocyanate. The mesogenic diol, containing an azobenzene group, formed a monotropic nematic phase in the narrow temperature region. LCPU(T) clearly exhibited a nematic phase on the heating and cooling processes. The fiber and film of LCPU(T) bended through trans–cis isomerization upon UV irradiation at room temperature. LCPU(T) formed a liquid-crystalline polymer–metal complex exhibiting a smectic A phase.

Journal

• Chemistry Letters

  Chemistry Letters 44 (3), 351-353, 2015

  The Chemical Society of Japan

Keywords

• General Chemistry

Details

• CRID: 1390001204586999552
• NII Article ID: 130004712950
• DOI: 10.1246/cl.140986
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/44/3/351/55643872/cl.140986.pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed