Provided are polyvinyl ester macromonomers (A) having excellent polymerizability and highly controlled composition, structure and distribution of polymerization degree.
Also provided are polyvinyl alcohol macromonomers (B) obtained by solvolysis of the above polyvinyl ester macromonomers (A) and having excellent polymerizability and highly controlled composition, structure and distribution of polymerization degree.
Further provided are polymers (C) obtained by polymerization of the above polyvinyl ester macromonomers (A) and containing units from polyvinyl ester macromonomers having highly controlled composition, structure and distribution of polymerization degree. These polymers (C) are useful as compatibility improving agents, surface improving agents and like agents.
Still further provided are polymers (D) obtained by solvolysis of the above polymers (C) or by polymerization or copolymerization of the above polyvinyl alcohol macromonomers (B) and containing units from polyvinyl alcohol macromonomers having highly controlled composition, structure and distribution of polymerization degree. These polymers (D) are useful for decreasing viscosity of aqueous solutions of polymers at high concentrations, improving surface, preventing static charge and the like.
本发明提供了聚
乙烯醇酯大单体(A),其具有优异的聚合性和高度可控的组成、结构和聚合度分布。
还提供了通过溶解上述聚
乙烯醇酯大单体(A)而获得的聚
乙烯醇大单体(B),其具有优异的聚合性和高度可控的组成、结构和聚合度分布。
进一步提供的聚合物(C)由上述聚
乙烯醇酯大单体(A)聚合而成,含有聚
乙烯醇酯大单体的单元,具有高度可控的组成、结构和聚合度分布。这些聚合物(C)可用作相容性改进剂、表面改进剂等。
进一步提供的聚合物(D)是通过上述聚合物(C)的溶解或上述聚
乙烯醇大单体(B)的聚合或共聚得到的,含有聚
乙烯醇大单体的单元,具有高度可控的组成、结构和聚合度分布。这些聚合物(D)可用于降低高浓度聚合物
水溶液的粘度、改善表面、防止静电等。