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http://dx.doi.org/10.7317/pk.2012.36.1.016

Preparation and Characterization of Photochromic Organic-Inorganic Hybrid Coating Using 1,2-Bis(2,4-dimethyl-5-phenyl-3-thienyl)3,3,4,4,5,5-hexafluoro-1-cyclopentene  

Lee, Chang-Ho (Department of Chemical Engineering, Research Institute of Industrial Science & Technology, Chungbuk National University)
Lee, Sang-Goo (Division of Green Chemistry, Korea Research Institute of Chemical Technology)
Lee, Jong-Dae (Department of Chemical Engineering, Research Institute of Industrial Science & Technology, Chungbuk National University)
Publication Information
Polymer(Korea) / v.36, no.1, 2012 , pp. 16-21 More about this Journal
Abstract
Organic-inorganic hybrid coating film using 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)-3,3,4,4,5,5-hexafluoro-1-cyclopentene (BTHFC) as a photochromic material was prepared under various reaction conditions such as the amounts of tetramethoxysilane (TMOS), various silane coupling agents, and solvent. It was found that color-fading speed and absorbance of the coating film was strongly dependent upon the polarity of silane coupling agent and solvent. In addition, the mole ratio of TMOS and methacryloyloxypropyltrimethoxysilane (MPTMS) was an important factor to determine color-fading speed and absorbance of the coating film. With increasing TMOS contents in coating film, the pencil hardness was increased. On the other hands, the transmittance of coating film was relatively decreased with the increase of TMOS.
Keywords
photochromic; 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)-3,3,4,4,5,5-hexafluoro-1-cyclopentene; sol-gel; organic-inorganic hybrid coating;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)  (Related Records In Web of Science)
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