Ring-opening polymerization of benzoxazine catalyzed by 4-dimethylamino pyridine and ethanolamine

被引：0
作者：
Zhu Y.-F. [1 ]
Wang L.-M. [1 ]
Su J.-M. [1 ]
Li P.-L. [1 ]
Yang F. [1 ]
机构：
[1] Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning
来源：
Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2019年 / 33卷 / 05期
关键词：
4-dimethylamino pyridine; Benzoxazine; Catalysis; Ethanolamine; Ring-opening polymerization;
D O I：
10.3969/j.issn.1003-9015.2019.05.013
中图分类号：
学科分类号：
摘要：
Effects of 4-dimethylamino pyridine (DMAP) and ethanolamine on ring-opening polymerization (ROP) of phenol-aniline-based benzoxazine (pa) was investigated by DSC, FTIR and in-situ FTIR. The results indicate that the initial/peak temperatures and activation energy decrease remarkably with the introduction of DMAP, ethanolamine or their mixtures. The initial temperature was reduced to below 80 ℃. The exothermic peak was significantly broadened with the addition of DMAP and ethanolamine. However, the intermediate chemical structures and the final polybenzoxazine structure were not affected. TGA results suggest that DMAP and ethanolamine do not affect the thermal stability of cured pa. These results indicate that DMAP and ethanolamine only catalyze the ROP process and hardly affect the structures and properties of the cured pa. Therefore, they are suitable for industrial ROP application. © 2019, Editorial Board of Journal of Chemical Engineering of Chinese Universities". All right reserved."
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页码：1123 / 1132
页数：9
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