{"title":"Effect of Graphene Oxide (GO) Dispersion on Basic Properties of Polycarbonate/GO Composites","authors":"Bom-yi Lee, Youn Cheol Kim","doi":"10.4156/JDCTA.VOL7.ISSUE11.36","DOIUrl":null,"url":null,"abstract":"The basic properties such as chemical structure, thermal and rheological properties of polycarbonate (PC)/graphene oxide (GO) composites, prepared by two methods: In-situ polymerizations and twin screw extruder was compared. A modified GO with COCl, GO-COCl was synthesized and the chemical structure of PC/GO-COCl and PC/GO was confirmed using FT-IR spectrum. GO, the hydroxyl (-OH), carbonyl (-C=O), ether (-CO-, C-O-C) bonds, is clearly identified by the peaks at 3395, 1724 and 1621cm respectively. Complex viscosities showed that the PC/GO composites by in-situ polymerization have larger shear thinning effect and this may be because of better dispersion of GO confirmed by scanning electron microscope (SEM).","PeriodicalId":13797,"journal":{"name":"International Journal of Digital Content Technology and Its Applications","volume":"74 1","pages":"287-297"},"PeriodicalIF":0.0000,"publicationDate":"2013-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Digital Content Technology and Its Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4156/JDCTA.VOL7.ISSUE11.36","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
The basic properties such as chemical structure, thermal and rheological properties of polycarbonate (PC)/graphene oxide (GO) composites, prepared by two methods: In-situ polymerizations and twin screw extruder was compared. A modified GO with COCl, GO-COCl was synthesized and the chemical structure of PC/GO-COCl and PC/GO was confirmed using FT-IR spectrum. GO, the hydroxyl (-OH), carbonyl (-C=O), ether (-CO-, C-O-C) bonds, is clearly identified by the peaks at 3395, 1724 and 1621cm respectively. Complex viscosities showed that the PC/GO composites by in-situ polymerization have larger shear thinning effect and this may be because of better dispersion of GO confirmed by scanning electron microscope (SEM).
比较了原位聚合和双螺杆挤出法制备的聚碳酸酯(PC)/氧化石墨烯(GO)复合材料的化学结构、热性能和流变性能等基本性能。合成了含COCl、GO-COCl的改性氧化石墨烯，并利用FT-IR光谱对PC/GO-COCl和PC/GO的化学结构进行了表征。氧化石墨烯，羟基(- oh)，羰基(- c =O)，醚(- co -， C-O-C)键，分别在3395,1724和1621cm处的峰清晰地识别出来。复合粘度表明原位聚合的PC/GO复合材料具有更大的剪切减薄效应，这可能是由于原位聚合的GO具有更好的分散性。
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