| abstract |
A polymer with a backbone having at least one structural unit represented by formula (I): wherein R1, R2, R3, R4, and R5 independently denote one of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted alkenyl group, and n preferably denotes an integer from 1 to 10. |