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Highly soluble phenylethynyl-terminated imides derived from mellophanic dianhydride (MPDA)
Li, Hanyuan; Wang, Wei; Chen, Guofei; Chen, Xiaoqi; Li, Yantao; Zhou, Haijun; Fang, Xingzhong
2018
发表期刊POLYMERS FOR ADVANCED TECHNOLOGIES
卷号29期号:11页码:2797-2805
摘要Novel highly soluble phenylethynyl-endcapped oligoimides with different calculated molecular weights were prepared by using mellophanic dianhydride and bis(4-amino-2-trifluoromethylphenyl)ether in the presence of 4-phenylethynyl phthalic anhydride as the reactive endcapping agent. The effect of molecular weights of the aromatic oligoimides on their solubility and processability as well as the thermal and mechanical properties of the thermal-cured polyimides was fully investigated. This kind of phenylethynyl-terminated imides exhibited excellent comprehensive properties. Most importantly, a big progress has been made in the solubility of the oligoimides in this paper. Most of the oligoimides showed excellent solubility (more than 33wt%) even in acetone, which was reported for the first time. And oligoimides with appropriate molecular weights also showed very good processability with minimum melt viscosities no higher than 120Pas by the rheological study. After thermally curing at 370 degrees C for 1hour, the cured flexible films showed very high glass transition temperatures up to 392 degrees C by dynamic mechanical analysis, and the temperature of 5% weight loss was higher than 500 degrees C in both air and N-2 atmosphere by thermogravimetric analysis. The cured films also exhibited very good toughness with elongation up to 9%.
关键词Low Melt Viscosities Pyromellitic Dianhydride 2-phenyl-4 Thermosetting Polyimides 4'-diaminodiphenyl Ether Backbone Structures Oligomers Composites Temperature Design Resins
学科领域Chemistry ; Science & Technology - Other Topics ; Engineering
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17064
专题2018专题
推荐引用方式
GB/T 7714
Li, Hanyuan,Wang, Wei,Chen, Guofei,et al. Highly soluble phenylethynyl-terminated imides derived from mellophanic dianhydride (MPDA)[J]. POLYMERS FOR ADVANCED TECHNOLOGIES,2018,29(11):2797-2805.
APA Li, Hanyuan.,Wang, Wei.,Chen, Guofei.,Chen, Xiaoqi.,Li, Yantao.,...&Fang, Xingzhong.(2018).Highly soluble phenylethynyl-terminated imides derived from mellophanic dianhydride (MPDA).POLYMERS FOR ADVANCED TECHNOLOGIES,29(11),2797-2805.
MLA Li, Hanyuan,et al."Highly soluble phenylethynyl-terminated imides derived from mellophanic dianhydride (MPDA)".POLYMERS FOR ADVANCED TECHNOLOGIES 29.11(2018):2797-2805.
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