Numera o le Cas:89-32-7 PMDA Pyromellitic dianhydride

Fa'atomuaga pu'upu'u

O le Pyromellitic dianhydride (PMDA), o oloa mama e paʻepaʻe pe samasama teisi. A faʻaalia i le ea susu o le a vave ona mitiia le susu mai le ea ma faʻa-hydrolyzed i le Pyromellitic Acid. E faʻamaʻalili i le dimethyl sulfoxide, dimethylformamide, acetone ma isi solvents organic, e le mafai ona faʻamaʻalili i le ether, chloroform ma le benzene. E faʻaaogaina tele o se mea mata mo le polyimide, ma le crosslinking agent mo le gaosiga o le epoxy curing agent ma le polyester resin extinction.

O le Pyromellitic acid (PMA), e taʻua foʻi o le 1,2,4,5-benzenetetracarboxylicacid, o se tioata paʻepaʻe i le samasama e pei o le pauta, e masani ona faʻaaogaina i le gaosia o le polyimide, octyl pyromelliate, ma isi, o le mea autu lea mo le gaosiga o le vailaʻau faʻamaʻaʻa.