Effect of stoichiometry on liquid crystalline supramolecular polymers formed with complementary nucleobase pair interactions

Kelly A. Burke, Sona Sivakova, Blayne M. Mckenzie, Patrick T. Mather, Stuart J. Rowan

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We report herein studies on the liquid crystalline behavior of a series of supramolecular materials that contain different ratios of two complementary symmetrically-substituted alkoxy-bis(phenylethynyl)benzene AA- and BB-type monomers. One monomer has thymine units placed at either end of the rigid mesogenic core, while the other has N 6-(4-methoxybenzoyl)-adenine units placed on the ends. Differential scanning calorimetric and polarized optical microscopy studies have been carried out on these systems. These studies show that the material's behavior is strongly dependent on its thermal history. As a result, the materials can exhibit, on heating, either a liquid crystalline phase, a crystalline phase, or the coexistence of crystalline and liquid crystalline regions.

Original languageEnglish
Pages (from-to)5049-5059
Number of pages11
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume44
Issue number17
DOIs
Publication statusPublished - 2006 Sep 1
Externally publishedYes

Keywords

  • Liquid crystalline polymers
  • Molecular recognition
  • Self-assembly
  • Supramolecular structures

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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