【摘要】 以新型二元胺和顺丁烯二酸酐为原料，用直接法和间接法合成顺酐型聚酰亚胺树脂（溶液）。该树脂（溶液）可形成坚韧的涂膜，是一种优良的高温涂料，可在军工、电子电气工业中作电机电器、金属制件和电子元件的涂料。着重研究了涂膜的热稳定性、化学稳定性、电性能及粘结力。结果表明，该涂料可在180℃长期使用，对一般有机溶剂和稀酸抗性好，电绝缘性及粘结力优良。更多还原

【Abstract】 Polyimides based on maleic anhydride is a type ofthermal stable polymers. They were synthesized from MAand new diamines directly or indirectly. These polyimidescan be cured at 180℃ and may form a fine coating withexcellent mechanical strength and good thermal stability.Isothermal gravimetric analysis showed that they may standa service temperature of 180"C. The adhesive strength andthe volume resistivity of typical coating from this kind’spolymer are 13. 2 kg and 9. 5×1212·cm at roomtemperature respectively.These polyimides are good varnishes and coatingmaterials.更多还原