| 谷氨酸乙酯-NCA与谷氨酸苄酯-NCA共聚反应和竞聚率的测定 |
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| 引用本文： | 方月娥,韩艳春,赵霞,方芳.谷氨酸乙酯-NCA与谷氨酸苄酯-NCA共聚反应和竞聚率的测定[J].安徽大学学报(自然科学版),1997(1). |
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| 作者姓名： | 方月娥 韩艳春 赵霞 方芳 |
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| 作者单位： | 中国科学技术大学应用化学系 |
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| 摘 要： | 以二氧六环为溶剂，三乙胺（ＴＥＡ）为催化剂，谷氨酸乙酯－Ｎ－羧基－２－氨基酸酐（ＥＬＧ－ＮＣＡ）与谷氨酸苄酯－Ｎ－羧基－２－氨基酸酐（ＢＬＧ－ＮＣＡ）基聚反应。用１ＨＮＭＲ谱测定了共聚物中两种单体单元的组成。利用Ｋｅｌｅｎ－Ｔüｄｓ作图法和最小二乘法计算了两种单体竞聚率。结果表明ＥＬＧ－ＮＣＡ的竞聚率ｒ１＝０．９２６，ＢＬＧ－ＮＣＡ竞聚率ｒ２＝１．１５７。
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| 关 键 词： | 共聚反应，转化率，共聚物，竞聚率 |
Copolymerization ofγ-EthyI-L-Glutamate- NCA withγ-BenzyI-L-Glutamate-NCA and Measurement of Reactivity Ratios |
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| Abstract: | The copolymerization of ELG-NCA with BLG-NCA was studied using triethylamine as an initiator in dioxane.The contents of two monomer units in the copolymers were determined by 1H-NMR spectra.The reactivity ratios of monomers were evaluated using Kelen-Tüds method with Least-Square-calculation. The monomer reactivity ratios of ELG-NCA and BLG-NCA are r 1=0.926 and r 2=1.157,respectively. |
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| Keywords: | copolymerization coversion copolytmer reactivity Ratio |
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