N,N-Diisopropylethanoamine was synthesized from diisopropylamine and ethylene oxide,and then chloridized to N,N-diisopropyl-2-aminoethyl chloride,which finally went through amindysis in benzene to(produce) the title p...N,N-Diisopropylethanoamine was synthesized from diisopropylamine and ethylene oxide,and then chloridized to N,N-diisopropyl-2-aminoethyl chloride,which finally went through amindysis in benzene to(produce) the title product N,N-diisopropyl ethanediamine.In these reactions,the optimum molar ratios were 1.2∶[KG-*3/5]1 for ethylene oxide to diisopropylamine,2∶[KG-*3/5]1 for thionyl chloride to N,N-diisoproylethanoamine,and(12∶[KG-*3/5]1) for ammonia to N,N-diisopropyl-2-aminoethyl chloride,respectively.The suitable reaction time,temperature,and solvent were also discussed.The total yield of 81.4% was obtained for the title product.展开更多
文摘N,N-Diisopropylethanoamine was synthesized from diisopropylamine and ethylene oxide,and then chloridized to N,N-diisopropyl-2-aminoethyl chloride,which finally went through amindysis in benzene to(produce) the title product N,N-diisopropyl ethanediamine.In these reactions,the optimum molar ratios were 1.2∶[KG-*3/5]1 for ethylene oxide to diisopropylamine,2∶[KG-*3/5]1 for thionyl chloride to N,N-diisoproylethanoamine,and(12∶[KG-*3/5]1) for ammonia to N,N-diisopropyl-2-aminoethyl chloride,respectively.The suitable reaction time,temperature,and solvent were also discussed.The total yield of 81.4% was obtained for the title product.
文摘通过光化学合成方法分别在高温(50℃)和室温(28℃)下实现了N,N-二甲基丙烯酰胺(DMAA)和N-异丙基丙烯酰胺(NIPAm)的交联共聚,制备了两种不同结构的P(DMAA-co-NIPAm)共聚物水凝胶.对两种温度下制备的P(DMAA-co-NIPAm)共聚物水凝胶的网络结构、溶胀与消溶胀速率和温度敏感性等方面进行了比较研究.结果发现,50℃下制备的P(DMAA-co-NIPAm)共聚物凝胶具有较为疏松的网络结构和相对较快的溶胀速率及温度响应特性.光化学合成方法较传统的热聚合制备方法具有简便、快捷的特点,合成过程仅需2 min.