微波法合成聚醚醚酮  

Poly(Ether Ether Ketone) Prepared by Microwave Heating

作　　者：尹君[1] 张爱清[1] 

机构地区：[1]中南民族大学催化材料科学湖北省暨国家民委-教育部共建重点实验室,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2008年第1期23-25,共3页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家自然科学基金资助项目(50373052)

摘　　要：研究了微波辐射下,以无水碳酸钾为催化剂,4,4′-二氟二苯甲酮(DFBP)和4,4′-联苯酚发生亲核取代反应制备聚醚醚酮(PEEK).结果表明:相对于常规加热而言,微波加速了反应的进行,产物PEEK特性粘度值为0.53dL/g.对于2种不同制备方法所得到的产物用IR、XRD、TGA进行了表征.在N2中的10%热失重温度均为554℃,说明产物具有很好的热稳定性.XRD实验结果表明:合成的PEEK具有半结晶性能.Poly （ether ether ketone） （PEEK） with inherent viscosity of 0. 53 dL/g was synthesized under microwave （MW） irradiation by nucleophilic substitution of 4, 4＇- difluorobenzophenone （DFBP） with 4, 4＇- biphenol in the presence of anhydrous potassium carbonate. The reaction time was greatly reduced compared with conventional heating. The products were characterised by infrared spectroscopy （IR）, X-ray diffraction （XRD） and thermogravimetric analysis （TGA）. The polymers had excellent thermal stability as shown by the 10% weight loss temperature in nitrogen at 554℃. X-ray diffraction patterns confirmed the semicrystalline character of the polymers.

关 键 词：聚醚醚酮 微波 合成 亲核取代 

分 类 号：TQ326.5[化学工程—合成树脂塑料工业] TQ424.25