A small angle neutron scattering study of the conformation of a side chain liquid crystal poly(Methacrylate) in the smectic c phase

I. W. Hamley*, J. P.A. Fairclough, S. M. King, J. Skovpedersen, R. M. Richardson, C. T. Imrie, A. A. Craig

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The conformation of the backbone in the side chain liquid crystal polymer poly[o- (4'-methoxybiphenyl-4-yloxy)butyl methacrylate] has been studied in the smectic C and nematic phases. Small angle neutron scattering experiments were performed on mixtures of molecules with perdeuteriated backbones and unlabelled molecules. The polymer is found to adopt an oblate conformation in the smectic C phase. The components of the radius of gyration parallel and perpendicular to the director are determined as a function of temperature from Guinier plots of the SANS data. The radii of gyration do not vary across the smectic phase and are found to be Rgǁ = (27 ± 1)Å, Rg)= (42 + 1)A. These results are compared with recent SANS results for other side chain liquid crystal polymers.

Original languageEnglish
Pages (from-to)679-684
Number of pages6
JournalLiquid Crystals
Volume22
Issue number6
DOIs
Publication statusPublished - 1 Jan 1997

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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