Allylimidazolium salt based antibacterial polymer coatings produced by thiol-ene photocuring

Mirinae Kim, Chiman Song, Dong Keun Han, Kwang Duk Ahn, Seung Sang Hwang, Dong June Ahn, Man Ho Kim

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Photocurable formulations containing trifunctional thiol, trifunctional ene, and antibacterial allylimidazolium salts have been employed for transparent antibacterial coatings. The antibacterial component 1-allyl-3-dodecylimidazolium salt (ADIm) is prepared and chemically attached to polymer networks using a one-step thiol-ene photocuring reaction. Ultra-small (USANS) and small angle neutron scattering (SANS) measurements show that the photocured polymers are loosely networked three-dimensional structures with a mass fractal of approximately 2.7 ± 0.2. The minimum inhibitory concentration (MIC) for the ADIm was determined to be 500 μg/ml and 15.63 μg/ml for Escherichia coli (Gram negative) and Staphylococcus aureus (Gram positive) bacteria, respectively. Coating formulations containing 10 mol% of the antibacterial ADIm photocured on glass substrates showed strong antibacterial activity against environmental bacteria such as E. coli and/or S. aureus.

Original languageEnglish
Pages (from-to)53-60
Number of pages8
JournalReactive and Functional Polymers
Publication statusPublished - 2015 Feb


  • Allylimidazolium salts
  • Antibacterial coating
  • Antibacterial polymers
  • Mass fractal network
  • Thiol-ene photocuring

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Biochemistry
  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry


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