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    姜振玉, 陈建定, 姜彦平. 新型可溶性含氟聚芳醚酮的合成与性能[J]. 华东理工大学学报(自然科学版), 2009, (2): 229-233.
    引用本文: 姜振玉, 陈建定, 姜彦平. 新型可溶性含氟聚芳醚酮的合成与性能[J]. 华东理工大学学报(自然科学版), 2009, (2): 229-233.
    Synthesis and Properties of Novel Soluble Poly(Aryl Ether Ketone)s Containing Fluorine[J]. Journal of East China University of Science and Technology, 2009, (2): 229-233.
    Citation: Synthesis and Properties of Novel Soluble Poly(Aryl Ether Ketone)s Containing Fluorine[J]. Journal of East China University of Science and Technology, 2009, (2): 229-233.

    新型可溶性含氟聚芳醚酮的合成与性能

    Synthesis and Properties of Novel Soluble Poly(Aryl Ether Ketone)s Containing Fluorine

    • 摘要: 以双酚AF、1,4-二(4′-氟苯酰基)苯或1,3-二(4′-氟苯酰基)苯为单体,通过亲核取代反应缩聚合成了2种新型含氟聚芳醚酮,由此显著改善了加工性能。采用FTIR、1HNMR、GPC、DSC、TGA等方法对聚合物的结构和性能进行了分析和表征。研究了聚合物的热性能、溶解性、材料拉伸性和介电性。结果表明:2种聚芳醚酮均具有较高的分子量(Mn>6.24×104);玻璃化转变温度Tg分别为174 ℃和162 ℃,空气中失重5%的温度分别为525 ℃和507 ℃;室温下在N甲基吡咯烷酮(NMP)、二甲基乙酰胺(DMAc)、四氢呋喃(THF)等有机溶剂中均有良好的溶解性,并且可浇铸成有韧性的透明薄膜,薄膜的拉伸强度分别为98 MPa和93 MPa。1 MHz下薄膜的介电常数分别是2.85和2.94。

       

      Abstract: Two types of novel poly (aryl ether ketone)s containing fluorine were synthesized by using bisphenol AF, 1,4bis (4fluorobenzoyl) benzene and 1,3-bis (4-fluorobenzoyl) benzene via nucleophilic substitution reaction, then the processing performance of the polymers was greatly improved. The synthesized polymers were analyzed and characterized by FT-IR, 1H-NMR, GPC, DSC and TGA. The thermal properties, solubility, tensile properties and dielectric properties were also studied. The results show that the polymers have high molecular weight(Mw>6.24×104), and display good thermal properties with glass transition temperatures Tg of 174 ℃ and 162 ℃, good thermal stability with 5% mass loss at 525 ℃ and 507 ℃ in air,respectively. The polymers also show good solubility in some solvents such as NMP, DMAc, THF, and chloroform at room temperature. The tensile strengths of 98 MPa and 93 MPa when the polymers were casted into flexible and transparent films. The films showed lower dielectric constant of 2.85 and 2.94 at 1 MHz, respectively.

       

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