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 (US)
Title of host publicationLiquid Crystal Materials, Devices, and Applications XI
DOIs
StatePublished - Jul 14 2006
EventLiquid Crystal Materials, Devices, and Applications XI - San Jose, CA, United States
Duration: Jan 21 2006Jan 25 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6135
ISSN (Print)0277-786X

Other

OtherLiquid Crystal Materials, Devices, and Applications XI
CountryUnited States
CitySan Jose, CA
Period1/21/061/25/06

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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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 [61350I] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6135). https://doi.org/10.1117/12.646500