Lee, Albert S. Jo, Young Yeol Jeon, Hyeonyeol Choi, Seung-Sock Baek, Kyung-Youl Hwang, Seung Sang 2024-01-20T07:00:24Z 2024-01-20T07:00:24Z 2021-09-04 2015-06-26 0032-3861 https://pubs.kist.re.kr/handle/201004/125321 A series of thiol-ene UV-curable inorganic organic hybrid polysilsesquioxanes of various phenyl:methacryloxypropyl and phenyl:mercaptopropyl copolymer compositions were synthesized in one-batch using a base-catalyzed system. These thermoplastic photocurable ladder-like structured materials were examined as scratch-resistant, hard-coating materials on both glass and PET substrates. The unique fully condensed structure of the hybrid polymers allowed for simplified processing and through variation of the organic functional group, films with high transparency, tunable refractive indices in the range of 1.467-1.546, pencil hardness values of 9H, and high nanoindentation modulus were obtained (7 GPa). These scratch-resistant polysilsesquioxanes may provide insight into the different organic functional group compositions which allow for optimal mechanical properties. (C) 2015 Published by Elsevier Ltd. English ELSEVIER SCI LTD HARD COATINGS LADDERSILOXANES POLYMERS Mechanical properties of thiol-ene UV-curable thermoplastic polysilsesquioxanes Article 10.1016/j.polymer.2015.05.007 1 POLYMER, v.68, pp.140 - 146 POLYMER 68 140 146 scie scopus 000357701900017 2-s2.0-84930198379 Polymer Science Polymer Science Article HARD COATINGS LADDERSILOXANES POLYMERS Polysilsesquioxanes UV-curing Thiol-ene chemistry