申请人:SYNTHOMER (UK) LIMITED
公开号:US10106635B2
公开(公告)日:2018-10-23
Use of a polymer as a secondary suspending agent in a suspension polymerization reaction is provided. The polymer comprising (i) residues of at least one ester-containing monomer, the ester-containing monomer (s) comprising one polymerizable carbon-carbon double bond per monomer and an ester group, and (ii) residues of at least one monomer comprising a sulfonate, sulfonic acid, sulfonic ester, sulfonamide or sulfonyl halide group the monomer (s) comprising a sulfonate, sulfonic acid, sulfonic ester group, sulfonamide or sulfonyl halide group comprising one polymerizable carbon-carbon double bond per monomer and a sulfonate, sulfonic acid, sulfonic ester, sulfonamide or sulfonyl halide group, the polymer optionally being partially hydrolyzed such that a proportion of said ester groups form alcohol groups, the degree of hydrolysis of the polymer being from 0 to 30 mol %.
本发明提供了一种在悬浮聚合反应中用作二级悬浮剂的聚合物。该聚合物包括(i) 至少一种含酯单体的残留物,含酯单体包括每个单体一个可聚合的碳碳双键和一个酯基,以及(ii) 至少一种单体的残留物,该单体包括磺酸盐基、磺酸基、磺酸酯基、磺酰胺基或磺酰卤化基,磺酸盐基、磺酸基、磺酸酯基、磺酰胺基或磺酰卤化基包括每个单体一个可聚合的碳碳双键和一个酯基、磺酸基、磺酸酯基、磺酰胺基或磺酰卤化基,聚合物可选择部分水解,使一定比例的所述酯基形成醇基,聚合物的水解度为 0 至 30 摩尔%。