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Grafting of Chitosan and Chitosantrimethoxylsilylpropyl Methacrylate on Single Walled Carbon Nanotubes-Synthesis and Characterization. 壳聚糖和壳聚糖三甲氧基甲基丙烯酸硅丙酯在单壁碳纳米管上的接枝-合成与表征。
journal of chemistry and chemical engineering Pub Date : 2010-09-01
Laura Carson, Cordella Kelly-Brown, Melisa Stewart, Aderemi Oki, Gloria Regisford, Julia Stone, Pasakorn Traisawatwong, Clarissa Durand-Rougely, Zhiping Luo
{"title":"Grafting of Chitosan and Chitosantrimethoxylsilylpropyl Methacrylate on Single Walled Carbon Nanotubes-Synthesis and Characterization.","authors":"Laura Carson, Cordella Kelly-Brown, Melisa Stewart, Aderemi Oki, Gloria Regisford, Julia Stone, Pasakorn Traisawatwong, Clarissa Durand-Rougely, Zhiping Luo","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Acid functionalized single walled carbon nanotubes (CNTs) were grafted to chitosan by first reacting the oxidized CNTs with thionyl chloride to form acyl-chlorinated CNTs. This product was subsequently dispersed in chitosan and covalently grafted to form CNT-chitosan. CNT-chitosan was further grafted onto 3-trimethoxysilylpropyl methacrylate by free radical polymerization conditions, to yield CNT-g-chitosan-g-3-trimethoxysilylpropyl methacrylate (TMSPM), hereafter referred to as CNT-chitosan-3-TMSPM. These composites were characterized by Fourier Transform Infrared Resonance Spectroscopy (FTIR), carbon-13 nuclear magnetic resonance ((13)C NMR), Thermogravimetric Analysis (TGA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The composite showed improved thermal stability and could be of great potential use in bone tissue engineering.</p>","PeriodicalId":15270,"journal":{"name":"journal of chemistry and chemical engineering","volume":"4 9","pages":"6-13"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3134870/pdf/nihms244974.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30012874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of superabsorbent hydrogel based on starch copolymers and methods for their preparation 淀粉共聚物高吸水性水凝胶的合成及其制备方法
journal of chemistry and chemical engineering Pub Date : 1900-01-01 DOI: 10.51348/dhqo8190
{"title":"Synthesis of superabsorbent hydrogel based on starch copolymers and \u0000methods for their preparation","authors":"","doi":"10.51348/dhqo8190","DOIUrl":"https://doi.org/10.51348/dhqo8190","url":null,"abstract":"The aim of this work is to synthesize and study a superabsorbent hydrogel based on starch copolymers. The optimal synthesis conditions have been determined and studies have been carried out on the effect of the molar ratios of the starting materials on the water absorption of the synthesized hydrogel. In the course of research, the optimum copolymerization temperature was 60 °C, and the reaction time was 3 hours. As a result of the study, a hydrogel was synthesized with a starch: acrylamide: bentonite ratio of 10 : 9 : 0.8, respectively. The resulting hydrogel was investigated by IR spectroscopy and differential thermal analysis. The influence of the molecular ratios of starch and acrylamide, as well as the concentration of the initiator, binder and bentonite, affecting the degree of swelling of the synthesized hydrogel, has been studied","PeriodicalId":15270,"journal":{"name":"journal of chemistry and chemical engineering","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78821667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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