采用硅溶胶和丙烯酸酯单体通过细乳液聚合制备纳米二氧化硅/丙烯酸酯复合高分子乳液.考察了聚合过程中硅溶胶量对于单体转化率和聚合物粒子粒径的影响,并用GPC、XPS表征所得的复合乳液.实验结果表明:二氧化硅的引入提高了聚合反应速率,增加聚合物的分子量并使分子量分布变窄;在复合乳液粒子中,二氧化硅主要以分散相分布在连续的丙烯酸酯相内部;复合乳液的力学性能明显优于不合二氧化硅的纯丙烯酸酯聚合物乳液.
参考文献
| [1] | Ugelstad J;El-Aasser M S;Vanderhoff J W .[J].J Polym Sci Polym Lett Ed,1973,11:503－513. |
| [2] | Shimada S.;Yamamoto K.;Horiguchi K. .Structure and molecular motion of poly(ethyleneoxide) chains adsorbed on a silica-tethered poly(methylmethacrylate) by the spin label method[J].Colloid and polymer science,1998(5):412-419. |
| [3] | Wang YT.;Chang TC.;Hong YS.;Chen HB. .Effect of the interfacial structure on the thermal stability of poly(methyl methacrylate)-silica hybrids[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2003(1/2):219-226. |
| [4] | Hayashi S;Fujiki K;Tsubokawa N .[J].Reactive and Funtional Polymers,2000,46:193－201. |
| [5] | Luna-Xavier J;Guyot A .[J].Elodie Journal of Colloid and Interface Science,2002,250:82－92. |
| [6] | Boninsegna S;Bosetti P;Carturan G;Dellagiacoma G;Dal Monte R .Encapsulation of individual pancreatic islets by sol-gel SiO2: A novel procedure for perspective cellular grafts[J].Journal of Biotechnology,2003(3):277-286. |
| [7] | Wang B.;Dong S.;Zhang J. .Silica sol-gel composite film as an encapsulation matrix for the construction of an amperometric tyrosinase-based biosensor[J].Biosensors & Bioelectronics: The International Journal for the Professional Involved with Research, Technology and Applications of Biosensers and Related Devices,2000(7-8):397-402. |
| [8] | Blanc D;Elissier S P;Jurine O P Y .[J].Journal of Sol-Gel Science and Technology,2003,27:215－220. |
| [9] | Fujiki K.;Tsubokawa N.;Ogasawara T. .Preparation of a silica gel carbon black composite by the sol gel process in the presence of polymer-grafted carbon black[J].Journal of Materials Science,1998(7):1871-1879. |
| [10] | Handbook of X-Ray Photoelectron Spectroscopy,Perkinelmer[M]. |
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%