| 摘要 |
PROBLEM TO BE SOLVED: To provide: a novel polymer having a ring structure in a main chain; and a method for producing the same.SOLUTION: A polymer has a pyrrolidinone ring structure in a main chain. The ring structure is, for example, a structure of the following formula (1). Ris hydrogen or -COR, Ris hydrogen or -COOR, Ris hydrogen, methyl, or -NHCOR. R-Rare, independently of one another, hydrogen, methyl, phenyl, straight-chain alkyl having 2-18 carbon atoms, or cycloalkyl having 3-18 carbon atoms. |
