Liquid crystalline supramolecular polymers formed via complementary nucleobase pair interactions

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report on the effect of placement of nucleobase units, thymine or N6-(4-methoxybenzoyl)-adenine onto the ends of the mesogenic and fluorescent core: bis-4-alkoxy-substituted bis(phenylethynyl)-benzene (AA and BB type monomers). While the addition of these bulky polar groups significantly reduces the range of liquid crystalline behavior, mixing two complementary nucleobase-containing monomer units together yields stable thermotropic liquid crystalline phases. Here, we focus on the effect of non-stoichiometric mixing of AA + BB monomers. Hydrogen bonding is shown to play an important role in the formation of these LC phases consistent with the formation of oligomeric or polymeric hydrogen bonding aggregates. Differential scanning calorimetry (DSC) and polarizing optical microscopy (POM) have been used in our studies, revealed greater stability of LC phase formation for the 1:1 mixture.

Original languageEnglish
Title of host publicationLiquid Crystal Materials, Devices, and Applications XI
Volume6135
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventLiquid Crystal Materials, Devices, and Applications XI - San Jose, CA, United States
Duration: 2006 Jan 212006 Jan 25

Other

OtherLiquid Crystal Materials, Devices, and Applications XI
CountryUnited States
CitySan Jose, CA
Period06/1/2106/1/25

Keywords

  • Hydrogen Bonds
  • Liquid Crystal
  • Nucleobases
  • Polymers
  • Supramolecular Chemistry

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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  • Cite this

    Burke, K. A., Sivakova, S., Mather, P. T., & Rowan, S. J. (2006). Liquid crystalline supramolecular polymers formed via complementary nucleobase pair interactions. In Liquid Crystal Materials, Devices, and Applications XI (Vol. 6135). [61350I] https://doi.org/10.1117/12.646500