邻甲基取代杂萘联苯型聚芳酰胺的合成与性能

应用化学, 2001, 18(5): 404-407. doi: 10.3969/j.issn.1000-0518.2001.05.027

邻甲基取代杂萘联苯型聚芳酰胺的合成与性能

王瑞玲 ^1, , 蹇锡高 ^2, , 朱秀玲 ^3, , 张守海 ^4, , 朱桂茹 ^5, , 胡政 ^6,

1.大连理工大学高分子材料系

2.大连理工大学高分子材料系

3.大连理工大学高分子材料系

4.大连理工大学高分子材料系

5.大连理工大学高分子材料系

6.大连理工大学高分子材料系

基金项目: 国家自然科学基金(59473019)

关键词：聚芳酰胺 , 二氮杂萘酮 , 物理性能 , 合成

Synthesis and Property of Polyamides Containing o-Methyl Phthalazone Moities

采用邻甲基取代杂萘联苯型类双酚4-(3-甲基-4-羟基苯基)-2，3-二氮杂萘-1-酮(DHPz-oM)与对氯苯腈反应制得二腈化合物，进一步水解为二酸．以此新型二酸与3种二胺聚合制得的3种新型聚芳酰胺均具有较高的耐热性能，其Tg在283～316℃，且易溶于非质子极性溶剂中，聚合物的特性粘数为1.25～1．58 dL/g(25℃，NMP)，拉伸强度为85～90 MPa，断裂伸长率为7％～11％，拉伸模量为0．9～1．3 GPa，电阻系数为1014～1016．

1, 2-Dihydro-2-( 4-carboxylphenyl )-4-[ 4-( 4-carboxylphenoxy )-3-methylphenyl ]-phthalazin-1-one, a diacid monomer containing phthalazone moiety and arylene dianimes were used tosynthesize polyamides. The monomer and polymers were studied by FT-IR, 1H NMR techniques. Thepolyamides obtained were soluble in polar aprotic solvents such as DMAc, NMP and had inherentviscosity of 1.25～1.58 dL/g (25 ℃, NMP). The Tg of the polyamides were above 280℃. Thepolyamide films had tensile strength 85～90 MPa, elongation at break 7%～11% tensile modulus0. 9～1.3 GPa, and the coefficient of electrical resistantce 1014～1016.

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