Photocrosslinkable polymer, insulating film, planarization film, lyophilic/liquid repellent patterned film, and organic field effect transistor device comprising same

A resin, consisting of:

• a plurality of repeating units represented by the following formula (1);
• a plurality of repeating units represented by the following formula (2),
• wherein the resin comprises from 20% to 91% by mole of the repeating units represented by the formula (2) with respect to a total amount of the repeating units represented by the formulae (1) and (2):
• wherein in the formula (1), R1 represents hydrogen or a C1-C6 alkyl group;
• S1 represents —O— or —C(O)—;
• p represents 0;
• A1 represents a C6-C19 aryl group;
• Y represents halogen, a cyano group, a carboxyalkyl group, an alkyl ether group, an aryl ether group, a C1-C18 alkyl group, a fluoroalkyl group, or a cycloalkyl group;
• and k represents 0, wherein s represents the number of carbon atoms constituting the A1,
• wherein in the formula (2), R2 represents hydrogen or a C1-C6 alkyl group;
• S2 represents —O— or —C(O)—;
• q represents 0;
• A2 represents a C6-C19 aryl group;
• Y represents a substituent as defined in formula (1);
• j represents 0 and m represents 1,
• wherein r represents the number of carbon atoms constituting the A2;
• and Z represents at least one organic group selected from the formulae (A) to (D):
• wherein in the formulae (A) to (D), R3 and R4 each independently represents hydrogen;
• and R5 to R29 independently represent hydrogen;
• and
• further optionally,
• a plurality of repeating units represented by the following formula (18);
• a plurality of repeating units represented by the following formula (19);
• or
• a combination thereof,
• wherein R2, S2, A2, and Y each represent a substituent defined in the formula (2),
• q represents an integer defined in the formula (2),
• n represents an integer from 0 to (t-4),
• t represents the total number of the carbon atoms constituting A2,
• d and e represent single bonds that are located in the ortho positions to each other (bonded to adjacent carbons) on the aromatic group A2, and
• R3 to R9 are the same as those defined in the formula (A), and
• Z is the formula (A);
• wherein A3 represents a C6-C19 aryl group,
• Y represents substituent defined in the formula (1),
• R30 represents hydrogen or a C1-C6 alkyl group,
• Rf represents a C1-C18 fluoroalkyl group,
• v represents an integer from 0 to (u-2),
• w represents an integer from 1 to (u-v-1), and
• u represents the number of carbon atoms constituting A3.