摘要
通过差示扫描量热(DSC)和热重分析(TGA)研究了所合成的氟封端的超支化聚醚醚酮(HPDEEK-F)和苯乙炔封端的聚醚醚酮(HPDEEK-PEP)的热性能。结果表明,HPDEEK-F中甲基在氧气条件下可以交联,但交联程度低,HPDEEK-PEP主要是炔基的交联,自交联程度高,甲基交联被包埋,交联后Tg提高了115℃,与线型聚合物交联后的Tg相比提高得更多。HPDEEK-PEP经310℃热处理1 h后,5%、10%热失重温度分别由热处理前的437℃、480℃变为473℃和503℃,热稳定性增强,同时交联后耐溶剂性增强。
The thermal properties of fluorin-terminated hyperbranched poly（ether ether ketone） （HPDEEK-F） and phenylethynyl-terminated hyperbranched poly（ether ether ketone）（HPDEEK-PEP） were studied by DSC and TGA. The methyl of HPDEEK-F could be crosslinked, but crosslinking degree was low. HPDEEK-PEP could self-erosslink. The crosslinking methyl was embedded. The self- crosslinking behavior was studied by DSC. After crosslinking, Tg increases by 115 ℃. After HPDEEK-PEP was cured at 310 ℃ for 1 hour, 5%, 10% mass loss temperatures of it changes from 437 ℃ and 480 ℃ to 473 ℃ and 503 ℃ , respectively. The cured polymers show good chemical resistance and solvent resistance. This paper provided the theoretical basis for the development of functional and crosslinkable hyperbranched PEEK.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2013年第6期58-61,共4页
Polymer Materials Science & Engineering
基金
国防科工委国防基金资助项目(9912 J.1.2.WJ1301)
关键词
超支化聚醚醚酮
自交联
苯乙炔
hyperbranched poly（ether ether ketone）s
self-crosslinkable
phenylethynyl
