Anisotropic polymerization shrinkage behaviour of liquid-crystalline diacrylates

R.A.M. Hikmet, B.H. Zwerver, D.J. Broer

Research output: Contribution to journalArticleAcademicpeer-review

49 Citations (Scopus)

Abstract

Anisotropic polymerization shrinkage of liquid-crystalline acrylates has been studied. In order to investigate the changes occurring on the microscopic scale, X-ray diffraction was combined with density measurements. As a result it was shown that at high polymerization temperatures the polymerization shrinkage in the direction of the molecular orientation was higher than the shrinkage in the directions perpendicular to the molecular orientation. Subsequently the shrinkage obtained on the microscopic scale was compared with the results obtained on the macroscopic scale. The behaviour was interpreted in terms of the molecular structure and the packing density within the systems.

Original languageEnglish
Pages (from-to)89-95
Number of pages7
JournalPolymer
Volume33
Issue number1
DOIs
Publication statusPublished - 1992
Externally publishedYes

Keywords

  • acrylate
  • crosslinking
  • liquid crystals
  • network
  • packing density
  • X-ray diffraction

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