Anisotropic networks obtained by in situ cationic polymerization of liquid-crystalline divinyl ethers

R. A.M. Hikmet, J. Lub, J. A. Higgins

Research output: Contribution to journalArticleAcademicpeer-review

80 Citations (Scopus)
1 Downloads (Pure)

Abstract

Anisotropic networks were obtained by photoinduced cationic polymerization of liquid-crystalline (LC) divinyl ethers. For this purpose two new LC divinyl ethers were synthesized. Transition temperatures, phase behaviour and the temperature dependence of the order parameter for the two systems were determined before polymerization. Subsequently the polymerization of the system was induced upon obtaining long-range uniaxial orientation of the molecules in the nematic state. In this way highly oriented networks were obtained. These anisotropic networks showed temperature-stable optical properties. Thermomechanical properties were found also to be anisotropic and highly dependent on relaxation mechanisms effective within the networks.

Original languageEnglish
Pages (from-to)1736-1740
Number of pages5
JournalPolymer
Volume34
Issue number8
DOIs
Publication statusPublished - 1 Jan 1993
Externally publishedYes

Keywords

  • anisotropic network
  • birefringence
  • divinyl ether
  • liquid crystal
  • modulus
  • photopolymerization
  • thermal expansion

Fingerprint

Dive into the research topics of 'Anisotropic networks obtained by in situ cationic polymerization of liquid-crystalline divinyl ethers'. Together they form a unique fingerprint.

Cite this