Using 3,5-diaminobenzoic acid and 4,4'-(Hexafluoroisopropylidene) diphthalic anhydride,which can improve solubility,as monomer,by grafting photosensitive groups on the main chain through molecular structure design,a photosensitive polyimide that can be cured at low ...MORE Using 3,5-diaminobenzoic acid and 4,4'-(Hexafluoroisopropylidene) diphthalic anhydride,which can improve solubility,as monomer,by grafting photosensitive groups on the main chain through molecular structure design,a photosensitive polyimide that can be cured at low temperatur...