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

作者：Kim Mirinae; Song Chiman; Han Dong Keun; Ahn Kwang Duk^*; Hwang Seung Sang; Ahn Dong June; Kim Man Ho

来源：Reactive and Functional Polymers, 2015, 87: 53-60.

DOI：10.1016/j.reactfunctpolym.2015.01.001

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

Photocurable formulations containing trifunctional thiol, trifunctional ene, and antibacterial allylimidazolium salts have been employed for transparent antibacterial coatings. The antibacterial component 1-ally1-3-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 mu g/ml and 15.63 mu g/ml for Escherichia coil (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.

• 出版日期2015-2