摘要
以均酐 (PMDA)、双醚酐 (BOPDPA)和 4 ,4 -二氨基二苯醚 (ODA)为原料 ,在极性溶剂中进行多相共缩聚。共聚物经亚胺化后 ,其抗张强度为 1 2 0～ 1 4 0MPa,耐热温度高于 3 0 0℃ ,可用做特种磁带磁层黏合剂和石英毛细管外涂料。
The multiphase copolycondensation of PMDA,BOPDPA and ODA was carried out in polar solvent.After its imidization the copolymer had the tensile strength 120～140 MPa,the heat resistant temperature more than 300 ℃.The modified polyimide could be used for the adhesive of special magnetic tape coat and the coating of quartz capillary chromatographic column.
出处
《石化技术与应用》
CAS
2000年第2期63-67,共5页
Petrochemical Technology & Application
关键词
改性聚酰亚胺
双醚酐
共缩聚
性能
modified polyimide
BOPDPA
multiphase copolycondensation
property
