| abstract |
Wherein one or more of the moieties contain one or more substituents on the aromatic ring selected from propyl and butyl, especially isopropyl, isobutyl, tert.butyl, and mixtures thereof, wherein the at least one moiety is derived from a primary aromatic diamine and an aromatic dianhydride monomer moiety, Polyimides exhibit good solubility and are well suited as dielectric materials in electronic devices such as capacitors and organic field effect transistors. |