Dissolution and degradation behaviours of cellulose with 1-N-butyl-3-methylimidazolium chloride as solvent，2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）-中国聚合物网,论文下载

Dissolution and degradation behaviours of cellulose with 1-N-butyl-3-methylimidazolium chloride as solvent

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Ionic liquid Cellulose Dissolution Torque moment Degradation

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238K

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分子表征

来源：

2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）

简介：

Inthispaper,thepreparationofthesolutionswasarrangedstartingfromslurryofcelluloseintheionicliquidof1-N-Butyl-3-methylimidazoliumchloride([BMIM]Cl)byaspecialverticalkneadersystematvacuumandhighshearingrates.Torquemomentandrevolutionsperminute(rpm)ofverticalkneadingweredeterminedon-line.Thecellulosesolutionsinionicliquidswerealsocharacterisedbymeansofpolarizingmicroscopeandcone-platerheometer.Therelationshipofdissolutiondegreeandtorquemomentwasestablished.Severalfactorswhichaffectthevelocityofdissolutionprocessincludingcelluloseconcentrationandtemperatureofthesolutionswerediscussedrespectively.Thedissolutionratewasincreasedremarkablyandtheuniformsolutioncouldbeobtainedcomparedtothestaticdissolutionmethod.TheCuen-degreesofpolymerization(DPCuen)oftheprecipitatedcellulosesweredetermined.TheinfluenceofdissolutionconditiononcellulosedegradationwasstudiedaccordingtothevariationofDPs.Itwasfoundthatthedegradationoccurredsimultaneouslyinthedissolutionprocess,however,thedegradationdegreecouldbecontrolledbythedissolutiondynamicconditions.

作者：

ZHU Tianxiang, ZHU Fangliang, ZHANG Yumei, WANG Huaping

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2010-01-20 14:55:20

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