H. Sawada, Yoshitaka Okada, Yuki Goto, Takayuki Fukui, T. Shibukawa, S. Kodama, Masashi Sugiya
{"title":"Application of Ionic Liquid as Surface Modifier: Switching Behavior of Novel Fluoroalkyl End-capped Vinytrimethoxysilane Oligomer — Tri-n-butyl-[(3-trimethoxysilyl) propyl] phosphonium Chloride Silica Nanocomposites between Superhydrophilicity and Oleophobicity","authors":"H. Sawada, Yoshitaka Okada, Yuki Goto, Takayuki Fukui, T. Shibukawa, S. Kodama, Masashi Sugiya","doi":"10.4011/SHIKIZAI.83.368","DOIUrl":null,"url":null,"abstract":"New fluoroalkyl end-capped vinyltrimethoxysilane oligomer - ionic liquid silica nanocomposites were prepared by sol-gel reaction of the corresponding oligomer in the presence of phosphorus-type ionic liquid: tri-n-butyl- [3- (trimethoxysilyl) propyl] phosphonium chloride under alkaline conditions. These fluorinated nanocomposites were found to apply to the surface modification of glass, and the modified glass surface exhibited a high oleophobicity imparted by fluoroalkyl groups in nanocomposites. Interestingly, this modified glass surface was found to show superhydrophilicity derived from hydrophilic cationic ionic liquid segments through the flip-flop motion between fluoroalkyl groups and the ionic liquid segments in nancomposites when the surface environment is changed from air to water.","PeriodicalId":21870,"journal":{"name":"Shikizai Kyokaishi","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Shikizai Kyokaishi","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4011/SHIKIZAI.83.368","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
New fluoroalkyl end-capped vinyltrimethoxysilane oligomer - ionic liquid silica nanocomposites were prepared by sol-gel reaction of the corresponding oligomer in the presence of phosphorus-type ionic liquid: tri-n-butyl- [3- (trimethoxysilyl) propyl] phosphonium chloride under alkaline conditions. These fluorinated nanocomposites were found to apply to the surface modification of glass, and the modified glass surface exhibited a high oleophobicity imparted by fluoroalkyl groups in nanocomposites. Interestingly, this modified glass surface was found to show superhydrophilicity derived from hydrophilic cationic ionic liquid segments through the flip-flop motion between fluoroalkyl groups and the ionic liquid segments in nancomposites when the surface environment is changed from air to water.
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