| 摘要 |
PROBLEM TO BE SOLVED: To provide a lactone polymer useful as a raw material for a polyurethane resin and the like.SOLUTION: The lactone polymer is a polymer obtained by ring-opening addition of lactone to a fluorene compound having a hydroxy group represented by the formula (3). In the formula (3), X and X' represent each an oxygen atom, a nitrogen atom or a single bond, Rand R' represent each an alkylene group having 2 to 4 carbon atoms, m and m' represent each an integer of 0 to 5, R, R', Rand R' represent each an alkyl group, an aryl group or an aralkyl group, and p, p', q and q' represent each an integer of 0 to 4. |
