4′-biphenyltetracarboxylic dianhydride_Kain Industrial Additive

background and overview[1] biphenyl polyimide, as a high-performance polymer, has heat resistance, solvent resistance, radiation resistance, and good mechanical and dielectric properties. it is widely used in mechanical electronics, aerospace, large motors, turbine bearings, etc. heat-resistant filter materials and other fields have broad application prospects. compared with the polyimide in which 3,3′,4,4′-biphenyltetracarboxylic dianhydride (4,4′-bpda) is…