Lee, Albert S. Lee, Jin Hong Choi, Seung-Sock Cho, Kie Yong Yu, Seunggun Koo, Chong Min Baek, Kyung-Youl Hwang, Seung Sang 2024-01-20T00:32:05Z 2024-01-20T00:32:05Z 2021-09-04 2017-10 0014-3057 https://pubs.kist.re.kr/handle/201004/122249 A series of inorganic-organic hybrid UV-curable ionic polysilsesquioxanes were synthesized through Menshutkin reactions with various tertiary amine vinyl or methacrylic monomers to quantitatively quaternize various alkyl-halide ladder-like functionalized polysilsesquioxanes. The effect of quaternary ammonium salt cation, anion, as well as UV-curing were examined. Obtained ionic polysilsesquioxanes exhibited exceptional thermal stability ( > 350 degrees C), high surface hardness (6H), high refractive index ( > 1.66), and substantial decrease in brittleness index. In addition to the excellent hardcoating properties, the ionic groups imbued antibacterial properties against gram positive and gram negative bacteria, which may allow for applications in flexible electronic devices. English PERGAMON-ELSEVIER SCIENCE LTD HYBRID POLYMERS COATINGS MEMBRANES OLIGOSILSESQUIOXANES COMPOSITES EFFICIENCY BACTERIA DESIGN SILANE UV-curable antibacterial ionic polysilsesquioxanes: Structure-property relationships investigating the effect of various cations and anions Article 10.1016/j.eurpolymj.2017.08.005 1 EUROPEAN POLYMER JOURNAL, v.95, pp.323 - 334 EUROPEAN POLYMER JOURNAL 95 323 334 scie scopus 000414886300026 2-s2.0-85027532150 Polymer Science Polymer Science Article HYBRID POLYMERS COATINGS MEMBRANES OLIGOSILSESQUIOXANES COMPOSITES EFFICIENCY BACTERIA DESIGN SILANE Antibacterial polymers Polysilsesquioxane UV-curable Hybrid materials Structure property relationships