节点文献
用两亲聚合物制备大颗粒苯丙乳液
PREPARATION OF LARGE PARTICLES POLY (STYRENE/ACRYLIC) EMULSION USING AMPHIPHILIC COPOLYMERS AS EMUSIFIER
【摘要】 分别以两亲聚合物 P(C9- AA)和 P(DCPD- St-α- St- AA)作乳化剂 ,研究了制备大颗粒 (约 1μm)及具有一定稳定性的苯丙乳液的方法 ,讨论了乳化剂 ,温度及引发剂用量对乳液性能的影响。结果表明 ,以P(C9- AA)作乳化剂时 ,引发剂用量为单体质量的 1.2 % ,90℃时可以合成性能良好的苯丙乳液 ;以P(DCPD- St- α- St- AA)作乳化剂时 ,引发剂用量为单体质量的 1.2 % ,80℃时可以合成性能良好的苯丙乳液
【Abstract】 The polymer of P(C 9-AA) and P(DCPD-St-α-St-AA) were synthesized and used as emulsifiers to prepare high solid content, large particles and stable poly (styrene /acrylate /methyl methacrylate /acrylic acid) emulsion. The effects of emulsifiers, temperature and initiator concentration on the properties of emulsion were discussed, respectively. The best conditions of polymerization are 90 ℃, ammonium persulfate 1.2 mass% (to monomer), 40% solid content when P(C 9-AA) is used as emulsifier, and 80 ℃~90 ℃, ammonium persulfate 1.2 mass% (to monomer), 50% solid content when P(DCPD-St-α-St-AA) is used as emulsifier.
【Key words】 amphiphilic polymer; styrene/acrylic emulsion; emulsion polymerization;
- 【文献出处】 高分子材料科学与工程 ,Polymeric Materials Science & Engineering , 编辑部邮箱 ,2003年04期
- 【分类号】TQ316.33
- 【被引频次】17
- 【下载频次】247