| abstract |
1. A polymer comprising a structural unit represented by the following general formula (I-1) and a structural unit represented by the following general formula (I-2). In the general formulas (I-1) and (I-2), X and X 'each independently represent a divalent group of 6 to 50 carbon atoms containing an aromatic ring, Y represents an alicyclic ring and a carbonyl group adjacent to Y And Y 'represents an alicyclic ring which is directly bonded to a carbon atom contained in a carbonyl group adjacent to Y', and Y 'represents an alicyclic group having 5 to 50 carbon atoms including an alkylene group having 1 to 10 carbon atoms, And m and n each represent an integer of 3 to 1000, |