Disclosed herein are hydrophobic vinylamine-containing polymers useful as papermaking performance additives for enhancing paper softness with little or no negative effect on paper dry strength properties. The hydrophobic vinylamine-containing polymers are produced by incorporating hydrophobic functional property into primary amine moiety of the vinylamine-containing polymers via reactions with reactive hydrophobes. The hydrophobically modified vinylamine-containing polymers can be further used as base polymers for polymerization with a vinyl monomer by free radical initiated polymerization. The compositions of those hydrophobic vinylamine-containing polymers have shown improved softness, reduced coefficient friction to paper products while maintained or improved dry strength properties of the paper products.
本文公开了可用作造纸性能添加剂的疏
水性含
乙烯基胺聚合物,用于提高纸张柔软度,同时对纸张的干强度性能几乎没有负面影响。疏
水性含
乙烯基胺聚合物是通过与反应性疏
水剂反应,在含
乙烯基胺聚合物的
伯胺分子中加入疏
水官能团而制成的。经疏
水改性的含
乙烯基胺聚合物可进一步用作基础聚合物,通过自由基引发的聚合反应与
乙烯基单体进行聚合。这些疏
水性含
乙烯基胺聚合物的组合物可改善纸制品的柔软度,降低摩擦系数,同时保持或改善纸制品的干强度特性。