Barrier properties of a thermotropic liquid-crystalline polymer

Hansel Ramathal, Adeniyi Lawal

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A developmental thermotropic liquid-crystalline polymer (TLCP) made by Eastman (trade name LN001) was used for barrier property studies. This material is a highly aromatic TLCP with a Tm of 332°C. A permeability study was carried out to determine the chemical resistance of the TLCP. The permeability of methanol and toluene through a membrane of the TLCP was studied using a two-part cell and a gas Chromatograph to monitor the flux. The membranes of the TLCP and LDPE (as control) were made by compression molding. Both solvents had higher permeability through LDPE-than TLCP and that of toluene was higher than that of methanol.

Original languageEnglish
Pages (from-to)2457-2463
Number of pages7
JournalJournal of Applied Polymer Science
Volume89
Issue number9
DOIs
StatePublished - 12 Jun 2003

Keywords

  • Barrier
  • Gas permeation
  • Glass transition
  • Liquid-crystalline polymers (LCP)
  • Membranes

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