Preparation of hemispherical polystyrene particles utilizing the solvent evaporation method in aqueous dispersed systems

被引：0
作者：
Takuya Tanaka
Tomoe Yamagami
Tatsuhiro Nogami
Hideto Minami
Masayoshi Okubo
机构：
[1] Graduate School of Engineering,
[2] Kobe University,undefined
[3] Rokko,undefined
[4] Nada,undefined
[5] Smart Spheres Workshop Co.,undefined
[6] Ltd.,undefined
来源：
Polymer Journal | 2012年 / 44卷
关键词：
nonspherical particles; hemisphere; solvent evaporation method; phase separation; interfacial tension; polystyrene;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Various nonspherical polystyrene (PS) particles were prepared by slow evaporation of toluene (used common good solvent) from homogeneous PS/hexadecane (HD)/toluene droplets dispersed in surfactant aqueous solutions at room temperature, followed by the rapid removal of HD from PS/HD particles with various phase-separated morphologies. The morphology of PS/HD particles was controlled by tuning the interfacial tension with various types of surfactants. Hemispherical PS particles with flat surfaces were obtained from phase-separated PS/HD/toluene droplets having a Janus structure, when polyoxyethylene nonylphenyl ether with an average ethylene oxide chain length of 30.8 was used as the surfactant.
引用
收藏
页码：1112 / 1116
页数：4
相关论文
共 155 条
[1]  
Lu Y(2002)Colloidal crystals made of polystyrene spheroids: fabrication and structural/optical characterization Langmuir 18 7722-7727
[2]  
Yin Y(2007)Determination of static microstructure of dilute and concentrated suspension of anisotropic particles by ultra-small-angle X-ray scattering Langmuir 23 8760-8771
[3]  
Li Z-Y(2007)Convectively assembled nonspherical mushroom cap-based colloidal crystals Langmuir 23 8810-8814
[4]  
Xia Y(1999)Reology and microstructure of dense suspensions of plate-shaped colloidal particles J. Rheol. 43 847-871
[5]  
Mock EB(1997)Examination of ellipsoidal polystyrene particles by electrophoresis Langmuir 13 1925-1930
[6]  
Zukoski CF(1976)Formation mechanism of heterogeneous structure in particles produced by seeded emulsion polymerization Kobunshi Ronbunshu 33 575-583
[7]  
Hosein ID(1981)Anomalous composite polymer emulsion particles with voids produced by seeded emulsion polymerization J. Polym. Sci. Polym. Lett. Ed. 19 143-147
[8]  
Liddell CM(1982)Rupture of anomalous composite particles prepared by seeded emulsion polymerization in aging period J. Polym. Sci. Polym. Lett. Ed. 20 45-51
[9]  
Jogun SM(1985)Morphology of latex particles formed by poly(methyl methacrylate)-seeded emulsion polymerization of styrene J. Appl. Polym. Sci. 30 1903-1926
[10]  
Zukoski CF(1986)Preparation of nonspherical, monodisperse polymer particles and their self-organization J. Colloid Interface. Sci. 113 577-582
12345678910