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Organogelators derived from the bisphenol A scaffold

New Journal of Chemistry, ISSN: 1369-9261, Vol: 45, Issue: 34, Page: 15655-15666
2021
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    Citations
  • 0
    Usage
  • 2
    Captures
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  • 36
    Social Media
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Metrics Details

  • Citations
    2
    • Citation Indexes
      2
  • Captures
    2
  • Social Media
    36
    • Shares, Likes & Comments
      36
      • Facebook
        36

Article Description

Bisphenol A, a common precursor molecule used in the preparation of some polymers, was investigated as a possible scaffold for the design and synthesis of small-molecule gelators. To this end, a small library of ten molecules was synthesized by appending differentn-alkyl chains and aromatic moietiesviathep-hydroxyl groups in a single step. Five of these served as excellent gelators of several polar solvents. All the gelators containedn-alkyl chains, while none of the aromatic moieties imparted the gelling ability to the molecules. The minimum gelation concentrations ranged between 1-3%, with the ether-linked gelators more efficient than the ester-linked ones. The gel-to-sol transition temperatures observed for these gels were in the range of 26-54 °C. Detailed characterizations of the gels for two representative gelators were carried out using techniques like FTIR, UV-vis absorption, scanning electron microscopy, rheology, powder XRD, and contact angle measurement. The gels showed good absorption profiles for two water-soluble dyes. Based on these results, we propose that ‘bisphenol A’ can be conveniently exploited as a versatile core gelating scaffold in the design of many other small-molecule gelators.

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