Amphiphilic polyimide precursor and process for preparing...

Details Amphiphilic polyimide precursor and process for preparing... Amphiphilic polyimide precursor and process for preparing...

C - Chemistry, Metallurgy

08

G

402/237

C08G 73/10 (2006.01) C08J 5/18 (2006.01)

Patent

CA 1295437

ABSTRACT This invention relates to a film comprising at least one monomolecular layer of a polyimide having recurring units of the formula Image wherein R1 is a tetravalent group having at least 2 carbon atoms, and R2 is a bivalent group having at least 2 carbon atoms. The film may be prepared from a polyimide precursor to form a built-up film on a substrate according to the Langmuir-Blodgett technique. The film has excellent heat resistance, chemical resistance, mechanical properties and electrical characteristics.

615613

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