中国塑料 ›› 2008, Vol. 22 ›› Issue (10): 33-37 .DOI: 10.19491/j.issn.1001-9278.2008.10.007

• 材料与性能 • 上一篇    下一篇

耐高温含氟聚芳醚酮和聚芳醚砜的合成与性能研究

彭为亚,汪称意,谭甲辉,王颖,李光   

  1. 东华大学纤维材料改性国家重点实验室,材料科学与工程学院
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-10-25 发布日期:2008-10-25

Synthesis and Properties of High Temperature Resistant Fluoropoly(aryl ether ketone)s and Fluoropoly (aryl ether sulfone)s

PENG Wei-ya, WANG Chen-yi, TAN Jia-hui, WANG Ying, LI Guang*   

  1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-10-25 Published:2008-10-25
  • Contact: PENG Wei-ya

摘要: 通过三步反应合成新的含氟双酚单体3,4-二氟苯基对苯二酚,由该含氟双酚单体、4-氟苯基对苯二酚、邻苯基对苯二酚分别与4,4′-二氟二苯酮、4,4′-二氯二苯砜经亲核缩聚反应,制备了一系列新型聚芳醚酮和聚芳醚砜。采用 FT-IR、DSC、TGA及XRD手段等对聚合物的结构和性能进行了表征和研究,结果表明:合成的聚芳醚酮和聚芳醚砜具有优异的耐热性能,玻璃化转变温度分别在150~159 ℃和177~196 ℃之间,氮气中5 %热失重温度分别在527 ℃和507 ℃以上。合成的聚芳醚酮和聚芳醚砜具有良好的溶解性,室温下能溶解在N-甲基吡咯烷酮、二甲基乙酰胺、氯仿等有机溶剂中。

关键词: 聚芳醚酮, 聚芳醚砜, 含氟聚合物, 热性能, 溶解性

Abstract: A new bisphenol monomer (3,4–difluoro)phenylhydroquinone, was thesised in a three-step synthesis. Fluoropoly (aryl ether ketone)s (FPAEK) and Fluoropoly (aryl ether sulfone)s (FPAEF) were prepared from the three bisphenol monomers and 4,4′ -diflourodiphenylketone or bis-(4- chlorophenyl) sulfone via a nucelophilic aromatic substitution polycondensation, respectively. The structures of the monomer and polymers were confirmed by 1H-NMR and FT-IR, and the properties of FPAEK and FPAEF were also studied by DSC, TGA, WXRD, etc. It was found FPAEK and FPAEF show high temperature stability, i.e the 5% weight loss temperatures were above 527℃ and 507℃ in N2, and their glass transition temperatures (Tg) ranged from 150℃ to 159℃ for FPAEK and from 177℃ to 196℃ for FPAEF in N2. Furthermore, these polymers have good solubility in some polar aprotic solvents such as NMP, DMAc, CHCl3, etc, which is an important advantage to process them for practical applications.

Key words: fluoropoly (aryl ether ketone), fluoropoly (aryl ether sulfone), fluoropolymer, thermal property, solubility