| 聚天冬氨酸的合成研究 |
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| 引用本文： | 陈舜,周志明,于超俊.聚天冬氨酸的合成研究[J].应用化工,2011,40(1):118-120,149. |
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| 作者姓名： | 陈舜 周志明 于超俊 |
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| 作者单位： | 重庆大学,化学化工学院,重庆400030 |
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| 摘 要： | 以马来酸为原料,通过三步反应合成了聚天冬氨酸。聚天冬氨酸合成的最佳工艺条件为:马来酸与尿素的摩尔比为1/0.95,反应温度为95.0℃,反应时间为3.75 h,马来酸铵盐与磷酸的质量比为1/0.55,氢氧化钠的用量为7.5 mL,水解温度为45℃,水解时间为55 min。此时,聚天冬氨酸的产率为83.0%。
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| 关 键 词： | 聚天冬氨酸 马来酸 马来酸铵盐 聚琥珀酰亚胺 |
Study on the synthesis of poly-aspartic acid |
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| CHEN Shun,ZHOU Zhi-ming,YU Chao-jun.Study on the synthesis of poly-aspartic acid[J].Applied chemical industry,2011,40(1):118-120,149. |
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| Authors: | CHEN Shun ZHOU Zhi-ming YU Chao-jun |
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| Affiliation: | (College of Chemistry & Chemical Engineering,Chongqing University,Chongqing 400030,China) |
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| Abstract: | Using maleic as raw material,poly-aspartic acid was synthesized by three steps.The optimum conditions of synthesis of poly-aspartic acid were as follows:molar ratio of maleic to urea 1/0.95,reaction temperature 95.0 ℃,reaction time 3.75 h,mass ratio of maleic ammonium to phosphoric acid 1/0.55,amount of sodium hydroxide 7.5 mL,hydrolysis temperature 45 ℃,hydrolysis time 55 min.Under these conditions,the yield of PASP was 83.0%. |
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| Keywords: | poly-aspartic acid maleic maleic ammonium poly-succinimide |
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