| 摘要 |
PURPOSE:To obtain titled new polymer with highly reactive SH, also free from insolubilization due to oxidation, by polymerizing, in the presence of thiolic acid, monomers consisting mainly of vinyl ester monomer(s) followed by treatment with ammonia or amine. CONSTITUTION:The objective new polymer having terminal SH group can be obtained by the treatment, with ammonia or amine, of a polyvinyl ester polymer prepared by polymerizing, in the presence of thiolic acid, vinyl monomers consisting mainly of vinyl ester monomer(s). This polymer has a polymerization degree <=3,500, being expressed by formula P.SH [P is structural unit of formula I (R<1> is H or C1-6 hydrocarbon) or II (R<2> is H or C1-20 hydrocarbon)], with the content of the unit of formula II being 50-100mol%. USE:For addition to other compounds because of its high reactivity.
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