The ordered two dimensional arrays of uniform copolymer microspheres had been fabricated on a substrate by the liquid capillary meniscus attraction force method. Thin aluminium film was deposited on the latex monolaye...The ordered two dimensional arrays of uniform copolymer microspheres had been fabricated on a substrate by the liquid capillary meniscus attraction force method. Thin aluminium film was deposited on the latex monolayer through vacuum evaporation. After ultrasonic etching and dissolving of polymer spheres a surface with features remained. Different patterings of net, islands and separate spots can be obtained by controlling the ultrasonic treatment time. The interaction among the metal, microspheres and the substrate as well as its effect on the micropatternings has been discussed.展开更多
The styrene(St) butyl acrylate(BA) copolymer was first prepared as seed emulsion and the final latex of St BA MA was then obtained from it with methyl acrylate(MA). The hollow polymer particles were obtained from poly...The styrene(St) butyl acrylate(BA) copolymer was first prepared as seed emulsion and the final latex of St BA MA was then obtained from it with methyl acrylate(MA). The hollow polymer particles were obtained from poly(St BA MA) in the presence of dodecyl sulfonic sodium through alkaline and acid treatments. In this paper the effects of pH value, temperature and time of acid treatment on the hollow structure of polymer particles were investigated. The results showed that the largest hollow size can be obtained when acid treatment conditions were: pH 2 5, 85 ℃ and 3 hours.展开更多
文摘The ordered two dimensional arrays of uniform copolymer microspheres had been fabricated on a substrate by the liquid capillary meniscus attraction force method. Thin aluminium film was deposited on the latex monolayer through vacuum evaporation. After ultrasonic etching and dissolving of polymer spheres a surface with features remained. Different patterings of net, islands and separate spots can be obtained by controlling the ultrasonic treatment time. The interaction among the metal, microspheres and the substrate as well as its effect on the micropatternings has been discussed.
文摘The styrene(St) butyl acrylate(BA) copolymer was first prepared as seed emulsion and the final latex of St BA MA was then obtained from it with methyl acrylate(MA). The hollow polymer particles were obtained from poly(St BA MA) in the presence of dodecyl sulfonic sodium through alkaline and acid treatments. In this paper the effects of pH value, temperature and time of acid treatment on the hollow structure of polymer particles were investigated. The results showed that the largest hollow size can be obtained when acid treatment conditions were: pH 2 5, 85 ℃ and 3 hours.
