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Free radical copolymerization of acrylonitrile with different comonomers in 1-buty-3-methylimidazolium chloride  
Free radical copolymerization of acrylonitrile with different comonomers in 1-buty-3-methylimidazolium chloride
資料類型: PDF文件
關(guān)鍵詞: acrylonitrile  ionic  liquid  comonomer  copolymerization  thermal  property  
資料大小: 954K
所屬學(xué)科: 分子表征
來源: 2009先進(jìn)纖維與聚合物材料國際學(xué)術(shù)會議(ICAFPM,10.21-10.24,上海)
簡介:
Freeradicalcopolymerizationofacrylonitrile(AN)withvariouscomonomersin1-buty-3-methylimidazoliumchloride([bmim]Cl)withazobisisobutyronitrile(AIBN)asinitiatorwereinvestigated.Thecopolymerizationkinetics,theconstitutesandthethermalpropertieswereanalyzedindetails.ThecompositionsoftheresultedcopolymerswereanalyzedbyElementalanalysis.Allthereactionsproceededfastinionicliquid,whilepolymerizationratevariedwithdifferentcomonomersunderthesamereactionconditions.In120min,alimitconversionofaround80%isreachedinthecopolymerizationexceptwhenN-vinylpyrrolidone(NVP)actedascomonomer.Polymerswithviscositymolecularweighthigherthan105g/molweresynthesizedintheusedionicliquid.Thermalpropertieswereanalyzedbydifferentialscanningcalorimetry(DSC).ItisshownthattheonsetsofcyclizationofthecopolymersexceptforP(AN-MA)shiftedtoalowertemperaturecomparedtohomopolymer,showinganimprovementofthecyclizationreaction.
作者: ZHANG Qing, DENG Jing, ZHANG Yumei, WANG Huaping
上傳時(shí)間: 2010-03-23 11:50:28
下載次數(shù): 1
消耗積分: 2  
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