| 三苯基膦和三甲基氯硅烷直接引发丙烯酸乙酯基团转移聚合的核磁共振动力学研究 |
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| 引用本文： | 施志坚 沈卫平. 三苯基膦和三甲基氯硅烷直接引发丙烯酸乙酯基团转移聚合的核磁共振动力学研究[J]. 波谱学杂志, 1995, 12(3): 229-236 |
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| 作者姓名： | 施志坚 沈卫平 |
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| 作者单位： | 上海科技大学化学系, 上海 201800 |
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| 基金项目： | 国家自然科学基金,青年基金 |
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| 摘 要： | 用FT-NMR的动态31P NMR谱及动态1H NMR谱对用三苯膦(TPP)和三甲基氯硅烷(TMCS)直接引发丙烯酸乙酯(EA)的基团转移聚合(GTP)进行了动力学跟踪,初探了该GTP反应的引发阶段、链增长阶段、链终止阶段的基础反应;三苯膦对丙烯酸乙酯的共轭加成的动力学行为;溴化锌在该反应体系的催化作用等,提出了在这种新的引发体系内的GTP反应历程。
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| 关 键 词： | 基团转移聚合(GTP) 丙烯酸乙酯(EA) 三甲基氯硅烷(TMCS) 三苯基膦(TPP) 动态31P NMR谱 动态1H NMR谱 |
| 收稿时间： | 1994-07-12 |
KINETIC STUDY OF GROUP TRANSFER POLYMERIZATION OF ETHYL ACRYLATE INITIATED DIRECTLY WITH TRIPHYLPHOSPHINE AND TRIMETHYLCHLOROSILANE TO INITIATE BY NMR |
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| Shi Zhijian,Shen Weiping,Yao Yuan,Jiang Yi. KINETIC STUDY OF GROUP TRANSFER POLYMERIZATION OF ETHYL ACRYLATE INITIATED DIRECTLY WITH TRIPHYLPHOSPHINE AND TRIMETHYLCHLOROSILANE TO INITIATE BY NMR[J]. Chinese Journal of Magnetic Resonance, 1995, 12(3): 229-236 |
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| Authors: | Shi Zhijian Shen Weiping Yao Yuan Jiang Yi |
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| Affiliation: | Department of Chemistry, Shanghai University of Science and Technology, Shanghai 201800 |
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| Abstract: | In this paper,kinetic behavior of the group transfer polymerization of ethyl acrylate initiated directly with triphenyl-phosphine and trimethylchlor-silane was studied by means of 31P NMR and 1H NMR kinetic spectra.Elementary reaction of initiating step,chain adding step and chain stopping of this GTP reaction was investigated.Kinetic behavior of conjuated addition of TPP to EA and catalytic action of zinc bromide in this initiation system were discussed.GTP reaction process history in this new initiating system was also proposed. |
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| Keywords: | Group transfer polymerization (GTP) Trimethylchlorosilane (TMCS) Ethylacrylate (EA) 1H NMR kinetic spectra 31P NMR kinetic spectra |
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