| 摘要 |
<p>A composition for forming an underlayer film for image formation is provided which gives an image-forming underlayer film having high water repellency (hydrophobicity), capable of being easily changed in hydrophilicity/hydrophobicity by exposure even to a small amount of ultraviolet, and having a high relative permittivity. Also provided is a cured film obtained from the composition. The composition for forming an underlayer film for image formation is characterized by containing at least one member selected from the group consisting of a polyimide precursor comprising structural units represented by the following formulae (1) and (1a) and a polyimide obtained by the dehydrating cyclization of the polyimide precursor. (In the formulae, A represents a tetravalent organic group; B1 represents a divalent organic group having fluoroalkyl; B2 represents a divalent organic group; R1, R2, R1a, and R2a each independently represents hydrogen or a monovalent organic group; and n and m each is a positive integer, provided that 0.01=n/(n+m)=0.3.)</p> |
