| abstract |
A copolymer containing a repeating unit of formula (1) and a repeating unit of formula (2-1) or (2-2): wherein R1 and R2 represent alkyl or aryl, R3 represents alkyl, aryl, alkoxy or amino, R5 and R6 represent hydrogen, alkyl or aryl. The copolymer exhibits excellent mechanical properties, and capable of forming a coating film having low reflectivity. |