Patent ID: 8470914

Claim:
A polyimide or precursor thereof represented by: wherein, X is a 4-valence organic group, Y is a 2-valence organic group, 0<p<1, 0<q<1, and p+q=1, n is an integer of 2 to 500, R is hydrogen or an alkyl group having 1 to 8 carbon atoms, and Z is derived from a diamine chemical compound represented by: wherein R 1 is an alkylene group having 2 to 8 carbon atoms or an arylene group having 6 to 8 carbon atoms, R 2 is an alkylene group having 2 to 8 carbon atoms, l is 0 or 1, m is 0 or 1, and n′ is an integer of 1 to 21.