SYNTHESIS OF 1-ALLYL,3-METHYLIMIDAZOLIUM-BASED ROOM- TEMPERATURE IONIC LIQUID AND PRELIMINARY STUDY OF ITS DISSOLVING CELLULOSE
SYNTHESIS OF 1-ALLYL,3-METHYLIMIDAZOLIUM-BASED ROOM- TEMPERATURE IONIC LIQUID AND PRELIMINARY STUDY OF ITS DISSOLVING CELLULOSE
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发表时间：
2003
影响因子：
1.9
通讯作者：
Q. Ren;J. Wu;Jun Zhang
中科院分区：
文献类型：
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作者：
Q. Ren;J. Wu;Jun Zhang
一种新型室温离子液体（RTIL），1-烯丙基，3-甲基咪唑氯化物合成并表征了一种新型的纤维素溶解剂[AMIM]Cl，并将其用于溶解纤维素，纤维素在[ AMIM]Cl中的溶解性优于在1-丁基，3-甲基咪唑中的溶解性通过FTIR比较了从[AMIM]Cl和[BMIM ]Cl溶液中再生的原纤维素和两种纤维素样品，WAXD和TGA测试结果表明，这两种RTIL是纤维素的非衍生化溶剂，再生后的纤维素膜完全由纤维素Ⅰ转变为纤维素Ⅱ，与原始纤维素相比，再生纤维素的热分解起始温度降低，具有更高的炭产率。
A novel room-temperature ionic liquid (RTIL),1-allyl,3-methylimidazolium chloride (［AMIM］Cl),was synthesized,ch aracterized and used for dissolving cellulose.The solubility of cellulose in ［ AMIM］Cl was better than in 1-butyl,3-methylimidazolium (［BMIM］Cl).The pris tine cellulose and two cellulose samples regenerated from ［AMIM］Cl and ［BMIM ］Cl solutions were compared by FTIR,WAXD and TGA measurements.Results show t hat these two RTILs are non-derivatizing solvents for cellulose.After regenera tion from RTIL solutions,the crystalline form of cellulose films is completely transformed from cellulose Ⅰ to cellulose Ⅱ.Compared to pristine cellulose,t he regenerated cellulose exhibits a lower onset temperature of thermal decomposi tion,with a higher char yield.