| 摘要 |
A polymer containing repeating units of the formula: <IMAGE> wherein R1 and R2 are independently hydrogen, alkyl, aryl, aralkyl, substituted alkyl, substituted aryl, substituted aralkyl, R3 is hydrogen, alkyl or CH2nCOOR8 where n is an integer of 0 to 10, R6 is OR or NR4R5, wherein R and R8 are independently hydrogen or a group derived from a compound containing esterifiable hydroxyl groups, R4 and R5 are independently alkyl, aryl, aralkyl, substituted alkyl, substituted aryl, substituted aralkyl or together comprise an alkylene group.
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