Graft copolymer having dispersion stabilizing effect, a process for producing the same, and a process of emulsion polymerization using the same
申请人:Soken Kagaku Kabushiki Kaisha
公开号:EP0251751A2
公开(公告)日:1988-01-07
A graft copolymer having dispersion stabilizing effect, which comprises on the carbon backbone thereof a polymer side chain comprising a carbon chain having a molecular weight of 1,000 ∼ 100,000, a fluorine atom containing fluorine side chain and a hyhdrophilic side chain containing a hydrophilic group, the total mean molecular weight of said graft copolymer being 5,000 or more. The graft copolymer of this invention can be used as an excellent dispersion stabilizer for emulsion polymerization, whereby in emulsion polymerization it is possible to attain polymer particle dispersion stability to ensure that the polymer particles will not be agglomerated even if they have been grown to larger particles having a diameter of 0.5 µ or more and that dispersion of the polymer particles having a large and uniform particle diameter is obtained.
一种具有分散稳定效果的接枝共聚物,其碳骨架上包含一条聚合物侧链,该侧链由分子量为 1,000 ∼ 100,000 的碳链、一条含氟原子的氟侧链和一条含亲水基团的亲水侧链组成,所述接枝共聚物的总平均分子量为 5,000 或以上。本发明的接枝共聚物可用作乳液聚合的优良分散稳定剂,从而在乳液聚合中获得聚合物颗粒的分散稳定性,以确保聚合物颗粒即使长成直径为 0.5 µ 或更大的颗粒也不会团聚,并获得颗粒直径大且均匀的聚合物颗粒的分散。