Preparation of silica thin films with macropore holes from sodium silicate and polymethacrylate: An approach to formation mechanism of diatomaceous earth like silica hollow particles

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 172; no. 2-3; pp. 1103 - 1110
• Main Authors: Fujiwara, Masahiro, Shiokawa, Kumi, Araki, Miyuki, Nakao, Masao, Sakakura, Ikuko, Nakahara, Yoshio
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier B.V 15.08.2011; Elsevier
• Subjects: Applied sciences; Chemical engineering; condensation; Crystallization, leaching, miscellaneous separations; Diatomaceous earth; Exact sciences and technology; Interfacial reaction method; Macropore; Phase separation; silica; Silica hollow particle; sodium; Sodium polymethacrylate; Sodium silicate; spectroscopy; Thin film; W/O/W emulsion; Interfacial reaction method; Sodium silicate; Sodium polymethacrylate; Phase separation; Macropore; Silica hollow particle; W/O/W emulsion; Diatomaceous earth; Thin film; Scanning electron microscopy; Microcapsule; Immersion; Condensation; Modeling; Infrared spectrometry; Emulsion; Morphology; Preparation; Aqueous solution; Formation mechanism; Macroporosity

► Silica thin films can be used as a model system of interfacial reaction method. ► Silica films with macropores were obtained from sodium silicate and polymethacrylate. ► Macropore holes in silica thin films were formed by phase separation. ► The phase separation produced the macropore-holed shell...