南京信息工程大学学报
南京信息工程大學學報
남경신식공정대학학보
JOURNAL OF NANJING UNIVERSITY OF INFORMATION SCIENCE & TECHNOLOGY
2014年
1期
63-68
,共6页
张慧%孙秀云%袁萍萍%王连军
張慧%孫秀雲%袁萍萍%王連軍
장혜%손수운%원평평%왕련군
离子液体%氨基酸离子液体%静态交换%两步法%合成%表征
離子液體%氨基痠離子液體%靜態交換%兩步法%閤成%錶徵
리자액체%안기산리자액체%정태교환%량보법%합성%표정
ionic liquid%amino acid ionic liquid%static exchange%two-step method%synthesis%characterization
探索两步法合成1-丁基-3-甲基咪唑甘氨酸离子液体([ bmim] Gly)的反应条件。第一步,采用阴离子树脂静态交换法由1-丁基-3-甲基咪唑溴盐([ bmim ] Br )与强碱性阴离子树脂生成中间产物1-丁基-3-甲基咪唑氢氧化物([bmim]OH),通过单因素实验获得其最佳交换条件;第二步,[ bmim ] OH 与甘氨酸( Gly )反应,经脱水、洗涤后得目标产物。对产物进行核磁(1H NMR)和红外(IR)表征,结果表明产品纯度较高。与动态合成法相比,静态法合成[ bmim] Gly操作简便,节水省时,有助于实现氨基酸离子液体合成过程的绿色化和工业化。
探索兩步法閤成1-丁基-3-甲基咪唑甘氨痠離子液體([ bmim] Gly)的反應條件。第一步,採用陰離子樹脂靜態交換法由1-丁基-3-甲基咪唑溴鹽([ bmim ] Br )與彊堿性陰離子樹脂生成中間產物1-丁基-3-甲基咪唑氫氧化物([bmim]OH),通過單因素實驗穫得其最佳交換條件;第二步,[ bmim ] OH 與甘氨痠( Gly )反應,經脫水、洗滌後得目標產物。對產物進行覈磁(1H NMR)和紅外(IR)錶徵,結果錶明產品純度較高。與動態閤成法相比,靜態法閤成[ bmim] Gly操作簡便,節水省時,有助于實現氨基痠離子液體閤成過程的綠色化和工業化。
탐색량보법합성1-정기-3-갑기미서감안산리자액체([ bmim] Gly)적반응조건。제일보,채용음리자수지정태교환법유1-정기-3-갑기미서추염([ bmim ] Br )여강감성음리자수지생성중간산물1-정기-3-갑기미서경양화물([bmim]OH),통과단인소실험획득기최가교환조건;제이보,[ bmim ] OH 여감안산( Gly )반응,경탈수、세조후득목표산물。대산물진행핵자(1H NMR)화홍외(IR)표정,결과표명산품순도교고。여동태합성법상비,정태법합성[ bmim] Gly조작간편,절수성시,유조우실현안기산리자액체합성과정적록색화화공업화。
The 1-butyl-3-methylimidazolium glycine acid salt([bmim]Gly) was prepared by two steps.The first step,the intermediary,1-butyl-3-methylimidazolium hydroxide ([bmim]OH) was prepared by 1-butyl-3-methyl im-idazolium bromide ( [ bmim ] Br ) through a static anion ion exchange. The optimum reaction conditions were obtained by single factor experiments.The second step,the [ bmim] OH and glycine were mixed and reacted,then were dried under vacuum and washed with methanol,to form high purity product.The structure of product was con-firmed and characterized by 1H NMR and IR.Compared with dynamic preparation method,the proposed static meth-od is simple in operation and rapid in production rate,and consumes less leaching water and energy,so it promotes the preparation of the amino acid ionic liquid in a more green and industrialized direction.