| 端羟基超支化聚酯的接枝改性13C NMR表征 |
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| 引用本文： | 罗金树,LI Peng,于运花,YANG Xiao-ping. 端羟基超支化聚酯的接枝改性13C NMR表征[J]. 塑料, 2008, 37(4) |
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| 作者姓名： | 罗金树 LI Peng 于运花 YANG Xiao-ping |
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| 作者单位： | 北京化工大学,北京市新型高分子材料制备与加工重点实验室,北京,100029;北京化工大学,北京市新型高分子材料制备与加工重点实验室,北京,100029;北京化工大学,北京市新型高分子材料制备与加工重点实验室,北京,100029;北京化工大学,北京市新型高分子材料制备与加工重点实验室,北京,100029 |
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| 摘 要： | 利用羟基与酰氯的反应,选用苯甲酰氯对端羟基超支化聚酯进行端基改性,采用13C NMR表征改性产物。研究表明:苯甲酰氯能有效地修饰超支化聚酯,通过控制H30和苯甲酰氯的投料比可以较好地控制端基的接枝率;利用13C NMR谱图,结合超支化聚合物的结构特性,能够较好地计算出聚合物的分子量和反应的程度——接枝率。
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| 关 键 词： | 超支化聚酯 端基改性 13CNMR |
Characterization of Grafted Reaction of Terminal Hydroxyl Groups of Hyperbranched Polyesters by 13C NMR |
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| LU Jin-shu,LI Peng,YU Yun-hua,YANG Xiao-ping. Characterization of Grafted Reaction of Terminal Hydroxyl Groups of Hyperbranched Polyesters by 13C NMR[J]. Plastics, 2008, 37(4) |
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| Authors: | LU Jin-shu LI Peng YU Yun-hua YANG Xiao-ping |
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| Abstract: | Based on the reaction between hydroxyl groups and acyl halides,benzoyl chloride was chosen to modify the terminal hydroxyl groups of hyperbranched polyesters H30.13C NMR was used to characterize H30 and its modified products(H30-Bns).Results showed that 13C NMR was an effective method to calculate the average modification degree(md) and the molecular weight(Mw) of H30-Bns availability,which could be controlled by the number of consumed benzoyl chloride corresponded to hydroxyl groups in H30. |
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| Keywords: | hyperbranched polyester terminal modified 13C NMR |
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