以2,2,-偶氮二[2-(2-咪唑啉-2-代)丙烷]二氢氯化物(VA-044)和过硫酸钾(KPS)、甲醛合次亚硫酸氢钠(SFS)为复合引发剂,采用烯丙基聚醚类反应性乳化剂,低温下合成了高硅含量的硅-丙乳液.系统探讨了乳化剂种类、VA-044用量、有机硅用量等因素对聚合体系稳定性的影响,并借助透射电镜(TEM)、粒度分布仪等分析了乳胶粒形貌、粒径分布.结果表明,使用反应性乳化剂,VA-044用量为1500mg/kg,有机硅用量为10%时聚合体系的稳定性最佳;乳胶粒呈明显的核/壳结构,且粒径分布较窄.
参考文献
| [1] | Wei-Dong He;Cai-Yuan pan .Influence of reaction between second monomer and vinyl group of seed polysiloxane on seeded emulsion polymerization[J].Journal of Applied Polymer Science,2001(14):2752-2758. |
| [2] | 龚兴宇,范晓东.有机硅-丙烯酸酯共聚复合乳液的结构、形态及性能[J].高分子材料科学与工程,2004(02):140-143,147. |
| [3] | Okaniwa M. .Synthesis of poly(dimethylsiloxane) and poly)butadiene) composite particles and the properties of their grafted polymer particles[J].Polymer: The International Journal for the Science and Technology of Polymers,2000(2):453-460. |
| [4] | Karlsson LE.;Karlsson OJ.;Sundberg DC. .Nonequilibrium particle morphology development in seeded emulsion polymerization. II. Influence of seed polymer T-g[J].Journal of Applied Polymer Science,2003(4):905-915. |
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%