POLYIMIDE PRECURSOR, POLYIMIDE, AND COATING SOLUTION FOR UNDER LAYER FILM FOR IMAGE FORMATION

摘要

There is provided a polyimide precursor which can alter the hydrophilicity/hydrophobicity of the surface of a cured film formed readily even by a low level of ultraviolet ray irradiation; and a polyimide produced from the polyimide precursor. The polyimide precursor having a structure represented by the following formula (1):;;where A represents a tetravalent organic group; B represents a bivalent organic group having a thiol ester bond in its main chain; R1 and R2 independently represent a hydrogen atom or a univalent organic group; and n represents a natural number.

主权项

1. A coating solution for an under layer film for image formation comprising:
at least one type of a compound selected from a group consisting of: (i) a polyimide precursor having a structure represented by the following formula (1):where A represents a tetravalent organic group; B represents a bivalent organic group having a thiol ester bond in its main chain; R1 and R2 independently represent a hydrogen atom or a univalent organic group; and n represents a natural number, and
(ii) a polyimide produced by dehydrating and ring closing the polyimide precursor.