title: Simultaneous Chemical and Optical Patterning of Polyacrylonitrile Film by Vapor-Based Reaction.
abstract: The surface of polyacrylonitrile (PAN) film is treated with ethyleneamines (EDA) in a simple chemical vapor phase reaction. Successful introduction of amine functional groups on the cyano group of PAN backbone is verified by FT-IR and NMR measurements. Further UV-vis and photoluminescence analyses show a red shift of the emission peak after repeated EDA treatment, which might be attributed to the formation of imine conjugation from newly formed carbon-nitrogen bonds on the PAN backbone. Further confocal laser scanning microscopy reveals that selective patterning of EDA on PAN films is possible via local polydimethylsiloxane masking. The results indicate that both chemical and optical patterning on PAN film can be realized via a single reaction and show the potential of this novel methodology in selective patterning.
authors: Department of Fine Chemical Engineering and Applied Chemistry, College of Engineering, Chungnam National University, Daejeon, Korea.
authors: Jae-Won
authors: JW
authors: Shin
authors: School of Chemical and Biological Engineering, College of Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Korea.
authors: Choonghyeon
authors: C
authors: Lee
authors: Department of Chemical Engineering, Kyonggi University, Suwon, 443-760, Korea.
authors: Sang-Ho
authors: SH
authors: Cha
authors: School of Chemical and Biological Engineering, College of Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Korea.
authors: Jyongsik
authors: J
authors: Jang
authors: Department of Fine Chemical Engineering and Applied Chemistry, College of Engineering, Chungnam National University, Daejeon, Korea.
authors: Kyung Jin
authors: KJ
authors: Lee
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D008567:Membranes, Artificial; D018613:Microscopy, Confocal
chemical_list: D000180:Acrylic Resins; D008567:Membranes, Artificial; C010504:polyacrylonitrile
keywords: chemical vapor deposition; ethylenediamine; photoluminescence; polyacrylontrile; surface patterning