用氧化还原引发剂在低温下研究了丙烯腈(M1)和丙烯酸乙酯(M2)的乳液共聚合.考察了聚合温度、乳化剂浓度对聚合的影响,结果表明,随温度升高和乳化剂浓度增大,单体的转化速度加快、聚合物分子量增大、乳液更为稳定.用激光粒径分析仪考察了20 ℃聚合过程中乳胶粒子大小的变化,发现聚合过程中的成核和增长均在胶束中进行,以及单体液滴在高转化率时仍存在.这两种单体的乳液共聚合的竞聚率也得到确定:r1＝1.90,r2＝1.00.
参考文献
| [1] | Chern CS.;Hsu H. .SEMIBATCH EMULSION COPOLYMERIZATION OF METHYL METHACRYLATE AND BUTYL ACRYLATE[J].Journal of Applied Polymer Science,1995(4):571-581. |
| [2] | Chern CS.;Chen YC. .STABILITY OF THE POLYMERIZABLE SURFACTANT STABILIZED LATEX PARTICLES DURING SEMIBATCH EMULSION POLYMERIZATION[J].Colloid and polymer science,1997(2):124-130. |
| [3] | Unzueta E.;Forcada J. .SEMICONTINUOUS EMULSION COPOLYMERIZATION OF METHYL METHACRYLATE AND N-BUTYL ACRYLATE .1. EFFECT OF MIXED EMULSIFIERS IN SEEDED POLYMERIZATION[J].Polymer: The International Journal for the Science and Technology of Polymers,1995(5):1045-1052. |
| [4] | Chern C S;Chen Y C .[J].Pure and Applied Chemistry,1998,35(06):965-983. |
| [5] | Unzue M J;Asua J M .[J].Journal of Applied Polymer Science,1993,49:81-90. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%