摘要
考察了以Ｋ＿２Ｓ＿２Ｏ＿８－ＮａＨＳＯ＿３为引发剂，ＰＶＡ为乳化剂时ＡＮ－ＶＡｃ进行乳液共聚，研究了各种因素对ＡＮ与ＶＡｃ共聚的影响。试验结果表明，聚合速度随引发剂、乳化剂及单体比ＡＮ／ＶＡｃ的增加而增加，也随温度升高而增加。共聚物的特性粘度随乳化剂浓度增加而增大，随引发剂ＡＮ／ＶＡｃ值增加及温度升高而降低。校适宜的聚合条件为温度５０～６０℃，引发剂的质量分数为０．４％～１．５％。乳化剂的质量分数为０．４％～０．６％，单体配比ＡＮ／ＶＡｃ在１：２～１：６之间、其转化率在７１％以上。
Using K2S2O8-NaHSO3 as an initiator and PNA as an emulsor, the emulsion copolymerizationof acylontrle (AN) and winy. acetate (VAc) was studied. The effect of different factors on thecopolymerization of AN and VAc was investigated. The results show that the polymerization rate increases asthe concentration of initiator, emulsor, monomer mole ratio of AN to VAc and the reaction temperatureincrease. The specific visoosity of the copolymer increases as emulsor concentration increases and decreasesas initiator concenteration and reaction mperature increase. The suitable conditions of copolymerization areas follows:the reaction temperature is 50～60℃,the initiator concentration is 0.4%～1.5% (w),the AN/VAc ratio is 1:2～1:6(mole), the conversion rate of the copolymerization is above 71%.
出处
《抚顺石油学院学报》
1997年第1期27-30,共4页
Journal of Fushun Petroleum Institute
