| 摘要 |
A modified polyvinyl alcohol having, in the molecular backbone, unsaturated double bonds derived from a specific monomer. The modified PVA contains, in the molecular backbone, combined units having unsaturated double bonds and represented by the general formula (1). (1) (In the formula, X1 and X2 each represents C<SUB>1-12</SUB> alkyl, hydrogen, or a metal atom; g is an integer of 0-3; h is an integer of 0-12; Y1 represents hydrogen or -COOM; and M represents hydrogen, alkyl, or a metal atom.) |
