title: Tuning polymer-surface chemistries and interfacial interactions with UV irradiated polystyrene chains to control domain orientations in thin films of PS-b-PMMA.
abstract: We demonstrate a simple, rapid, cost-effective and robust approach to modify the surface of a solid substrate, based on a UV-irradiated film of a general plastic polymer. Thin films of homopolymer polystyrene (PS) of controlled thickness were spin-coated on diverse metal, semiconductor and polymeric surfaces. Specific surface chemistry was tuned with UV irradiation in air (UVIA); interactions at the PS/substrate interface were enhanced with UV irradiation in nitrogen (UVIN). Oxidized and cross-linked PS served as a neutral surface on various metal, quartz, semiconductor and polymeric substrates to induce perpendicularly oriented cylinders or lamellae in a self-assembled block copolymer.
authors.affiliation: Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan. yssun@cc.ncu.edu.tw.
authors.forename: Ya-Sen
authors.initials: YS
authors.lastname: Sun
authors.affiliation: Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan. yssun@cc.ncu.edu.tw.
authors.forename: Ching-Tun
authors.initials: CT
authors.lastname: Wang
authors.affiliation: Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan.
authors.forename: Jiun-You
authors.initials: JY
authors.lastname: Liou