Synthesis and Characterization of Phthalazinone Containing Poly(arylene ether)s, Poly(arylene thioether)s, and Poly(arylene sulfone)s via a Novel N−C Coupling Reaction
作者:S. J. Wang、Y. Z. Meng、A. R. Hlil、A. S. Hay
DOI:10.1021/ma030246z
日期:2004.1.1
molecular weight phthalazinone containing poly(arylene ether)s, poly(arylene thioether)s, and poly(arylene sulfone)s with very high glass transition temperatures were synthesized from a series of new bisphthalazinone monomers. Bisphthalazinone monomers 7a−c and 8c were synthesized from 2-(4-chlorobenzoyl)benzoic acid in high yields. Poly(arylene ether)s and poly(arylene thioether)s were synthesized in N,N‘-dimethylacetamide
由一系列新型的双酞菁酮单体合成了具有很高玻璃化转变温度的高分子量含酞菁酮的聚(亚芳基醚),聚(亚芳基硫醚)和聚(亚芳基砜)。由2-(4-氯苯甲酰基)苯甲酸高产率地合成了双酞嗪酮单体7a - c和8c。聚(亚芳基醚)和聚(亚芳硫醚)类是在合成N,N- ' -二甲基乙酰胺(DMAc)中在无水K的存在2 CO 3这些双酞嗪酮单体与活化的二氟化合物之间的亲核取代反应。聚(亚芳基硫醚)被进一步氧化以形成聚(亚芳基砜),这将是非常困难的,如果不是不可能的话,则不能通过其他方法来合成。由DSC和TGA分析确定,所有合成的聚合物均具有极高的T g s和热稳定性。聚亚芳基砜具有最高的T g的温度范围为288至333°C。所述的聚(亚芳基醚)和聚(亚芳基硫醚)的固有粘度在0.37-1.01 dL / g的范围内,可溶于氯仿等氯化溶剂中,并可从溶液中流延成柔性薄膜。与它们的前体相反,所述的聚(亚芳基砜)不溶于氯