PEEK变温红外光谱研究  

Variable Temperature Infrared Spectroscopy Study of PEEK

作　　者：赵茉含 高佳丽 王欣[1] 董丽华 王鑫鹏 付俊杰 罗普方 于宏伟[1] ZHAO Mo-han;GAO Jia-li;WANG Xin;DONG Li-hua;WANG Xin-peng;FU Jun-jie;LUO Pu-fang;YU Hong-wei(School of Chemical Engineering,Shijiazhuang University,Shijiazhuang 050035)

机构地区：[1]石家庄学院化工学院,河北石家庄050035

出　　处：《纺织科学与工程学报》2019年第2期105-112,共8页Journal of Textile Science & Engineering

基　　金：石家庄市藁城区科学技术研究与发展计划课题(G201804)

摘　　要：采用红外光谱研究了PEEK(聚醚醚酮)的分子结构。实验发现:PEEK的红外吸收模式包括C=O伸缩振动(ν_(C=O))、Ar-O-Ar平面振动(ν_(Φ-O-Φ))、Ar-CO-Ar平面振动(ν_(Φ-CO-Φ))、Ar-O-Ar不对称伸缩振动(ν_(asΦ-O-Φ))、C-H面内弯曲振动(γ_(C-H))、Ar-CO-Ar对称伸缩振动(ν_(sΦ-CO-Φ))、C-H面外弯曲振动(ω_(C-H))等。采用变温红外光谱技术进一步开展了PEEK的热稳定性的研究。实验发现:在293 K～393 K的温度范围内,PEEK的热稳定性降低。本项研究拓展了变温红外光谱技术在重要高分子纤维材料(PEEK)结构及热稳定性方面的研究范围。The PEEK ( polyetheretherketone) organic molecular structure was characterized by the infrared spectroscopy. The results showed that the infrared absorption modes of PEEK included C =O stretch vibration (vc=O), Ar-O-Ar plane vibration band (vΦ-O-Φ), Ar-CO-Ar plane vibration band(vΦ-CO-Φ),Ar-O-Ar asymmet rical stretch vibration ( vasΦ-CO-Φ), C-H in-plane bending vibration (γC-H ), Ar-CO-Ar symmetrical stretch vibration ( vsΦ-O-Φ)> C-H out-of-plane bending vibration(ωC-H). The thermal stability of PEEK was studied by a- dopting variable temperature infrared spectroscopy. It was found that in the 293K ~ 393K, the thermal stability of PEEK reduced. The research field of variable temperature infrared spectroscopy in the analysis of structure and thermal stability of the important polymerfiber materials ( PEEK) was expanded.

关 键 词：PEEK 红外光谱 变温红外光谱 热稳定性 

分 类 号：TS101.921[轻工技术与工程—纺织工程] O434.3[轻工技术与工程—纺织科学与工程]