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| SBS与MMA在超临界CO2介质中的接枝反应 | |
| 引用本文： | 李春生,郑安呐,张书香,任皞.SBS与MMA在超临界CO2介质中的接枝反应[J].华东理工大学学报(自然科学版),2006,32(6):724-727. |
| 作者姓名： | 李春生 郑安呐 张书香 任皞 |
| 作者单位： | 1. 华东理工大学材料科学与工程学院,上海,200237;济南大学化学化工学院,济南,250022 2. 华东理工大学材料科学与工程学院,上海,200237 3. 济南大学化学化工学院,济南,250022 |
| 摘 要： | 利用超临界CO2作为甲基丙烯酸甲酯(MMA)的溶剂和苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)的溶胀剂,通过自由基聚合制备了MMA与SBS的接枝聚合物(SBS-g-MMA)。MMA的接枝率达26.3%。考察了单体浓度、引发剂用量、反应时间以及反应压力等因素对反应的影响。用FT-IR、GPC、DSC以及SEM等分析方法对样品进行了表征,结果表明接枝后产物的相对分子质量明显增大,接枝后产物的玻璃化温度有所上升。 |
| 关 键 词： | 超临界CO2 苯乙烯-丁二烯-苯乙烯嵌段共聚物 甲基丙烯酸甲酯 接枝 |
| 文章编号： | 1006-3080（2006）06-0724-04 |
| 收稿时间： | 2005-10-08 |
| 修稿时间： | 2005年10月8日 |
Grafting Methyl Methacrylate onto Styrene-Butadiene-Styrene Tri-Block Copolymer in Supercritical Carbon Dioxide |
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| LI Chun-sheng,ZHENG An-na,ZHANG Shu-xiang,REN Hao.Grafting Methyl Methacrylate onto Styrene-Butadiene-Styrene Tri-Block Copolymer in Supercritical Carbon Dioxide[J].Journal of East China University of Science and Technology,2006,32(6):724-727. | |
| Authors: | LI Chun-sheng ZHENG An-na ZHANG Shu-xiang REN Hao |
| Abstract: | Grafting methyl methacrylate(MMA) onto styrene-butadiene-styrene tri-block copolymer(SBS) was carried out by free radical polymerization using supercritical carbon dioxide as a solvent of MMA and swelling agent for SBS. The grafting ratio reached to 26.3%.The effects of reaction conditions,such as monomer concentration,initiator concentration,supercritical CO_2 pressure and the reaction time on the grafting ratio were studied.The products were characterized by FT-IR,GPC,DSC and SEM.GPC data show that the molecular weight of SBS-g-MMA is higher than that of SBS.DSC testing indicates that the glass transition temperature of SBS-g-MMA is higher than that of SBS. |
| Keywords: | supercritical carbon dioxide styrene-butadiene-styrene tri-block copolymer methyl methacrylate grafting |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
