| abstract |
[Problem] To provide a simple and efficient method for producing a hydroxy group-containing vinyl ether polymer, which does not require a step for removing low-boiling-point impurities such as residual monomers and initiator residues, polyacetals and the like by suppressing the production of polyacetals by improving the monomer conversion rate, while reducing the amount of a polymerization initiator used therefor.n[Solution] A vinyl ether having a hydroxy group represented by formula (2) is radically polymerized in the presence of water, which serves as a polymerization solvent, and an azo compound represented by formula (1), which serves as a polymerization initiator.n(In formula (1), each of R 1 -R 4 independently represents a hydrogen atom or an alkyl group; and each of R 5 and R 6 independently represents an optionally substituted alkoxy group or an optionally substituted alkylamino group.)n(In formula (2), R 7 represents a linear, branched or alicyclic structure-containing alkylene group; and p represents 1, 2 or 3.) |