Abstract：A kind of thermoplastic polyimide(TPI)was synthesized with 3,3',4,4'-benzophenone-tetracarboxylic dianhydride(BTDA)and 4,4'-oxydianiline(ODA)as monomers,the imidization process was a chemical one.The glass transition temperature of TPI was 275℃.TGA temperature at 5% mass loss was 560℃,this indicated that the TPI had good thermooxidative stability.Within the interested content range,TPI had good compatibility with LP-15,a semi-interpenetrating network(IPN)was formed between them.When the TPI content was 20%(mass fraction),the Tgvalue and impact strength were 13.5℃ and 256% higher than those of LP-15 respectively,i.e.The modified resin exhibited simultaneous improvement in both toughness and Tg,which were very difficult to achieve by conventional toughing methods.
王文俊, 郭涛, 李小刚, 邵自强. 酮酐型热塑性聚酰亚胺的合成与应用研究[J]. 材料工程, 2008, 0(1): 45-48,53.
WANG Wen-jun, GUO Tao, LI Xiao-gang, SHAO Zi-qiang. Synthesis and Application of Thermoplastic Polyimide Based on BTDA. Journal of Materials Engineering, 2008, 0(1): 45-48,53.
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