Biphenylene end-capped low molecular weight thermally stable aromatic polymers and the process for their preparation. The invention is further directed to crosslinked biphenylene end-capped aromatic polymers and to the process for their preparation. The process for preparing the biphenylene end-capped low molecular weight thermally stable aromatic polymers comprises carrying out a misbalanced polymerization reaction of a suitable aromatic aminoketone compound and a suitable aromatic ketomethylene compound and thereafter adding a monofunctional biphenylene compound.
双苯基末端的低分子量热稳定芳香聚合物及其制备方法。本发明还涉及交联的双苯基末端芳香聚合物及其制备方法。制备双苯基末端的低分子量热稳定芳香聚合物的方法包括进行合适的芳香
氨酮化合物和合适的
芳香酮甲基化合物的不平衡聚合反应,然后加入单官能团双苯基化合物。