通过连续乳液聚合方法合成了平均粒径59.8 nm、粒径分布窄、固含量达42%的硅-丙微胶乳.考察了聚合温度、乳化剂用量、引发剂用量、功能性单体用量对乳液及乳胶膜性能的影响.FT-IR分析表明,丙烯酸酯和有机硅发生共聚;反应温度为80℃～85℃时,得到的乳液的乳胶粒较小,而胶膜的吸水率随温度的升高而降低;乳化剂用量、引发剂用量、功能性单体MAA用量增加,胶膜吸水率增大;乳化剂用量为单体质量的4%、引发剂用量为单体质量的0.375%、MAA用量占单体质量的1%～2%时,乳液粒径最小;适量MAA的加入,可有效抑制反应过程中凝聚物的产生.
参考文献
| [1] | Sosa N.;Lopez RG.;Ramos LF.;Katime I.;Cesteros C. Mendizabal E.;Puig JE.;Peralta RD. .A comparison of the characteristics of poly(vinyl acetate) latex with high solid content made by emulsion and semi-continuous microemulsion polymerization[J].Polymer: The International Journal for the Science and Technology of Polymers,2001(16):6923-6928. |
| [2] | Hermanson KD.;Kaler EW. .Kinetics and mechanism of the multiple addition microemulsion polymerization of hexyl methacrylate[J].Macromolecules,2003(6):1836-1842. |
| [3] | Rabelero M;Zacarias M;Mendizabal E;Puig JE;Dominguez JM;Katime I;INST MEXICANO PETR MEXICO CITY 07730 DF MEXICO.;UNIV PAIS VASCO DEPT QUIM FIS E-48080 BILBAO SPAIN. .High-content polystyrene latex by microemulsion polymerization[J].Polymer bulletin,1997(6):695-700. |
| [4] | Roy S.;Devi S. .HIGH SOLIDS CONTENT SEMICONTINUOUS MICROEMULSION COPOLYMERIZATION OF METHYLMETHACRYLATE AND BUTYLACRYLATE[J].Polymer: The International Journal for the Science and Technology of Polymers,1997(13):3325-3331. |
| [5] | Gan L M;Lian N;Chew C H.[J].LANGMUIR,1994(10):2197. |
| [6] | Capek I.;Chudej J.;Janickova S. .Sterically stabilized emulsion polymerization of styrene: Pseudo-semicontinuous approach[J].Journal of Polymer Science, Part A. Polymer Chemistry,2003(6):804-820. |
| [7] | 金鲜英,张涑戎,李立平.有机硅改性聚丙烯酸酯微乳液的合成[J].印染助剂,2003(01):26-30. |
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