POLYAMIC ACID POLYMER AND A POLYIMIDE FILM PRODUCED THEREFROM

摘要

The present invention relates to a polyamic acid polymer and to a polyimide film, and relates to a polyamic acid polymer and polyimide film wherein the polyimide film is produced from a polyamic acid which has been polymerised by pre-reacting silane-based compounds with each other and then by adding a dianhydride and a diamine, thereby introducing a silane-based monomer into the polymer chain, thus increasing the degree of curing and the content of the silane-based monomer and improving the adhesive strength and dimensional stability of the polyimide film.