Formation of colloid crystals from polymer-modified monodisperse colloidal silica in organic solvents |
| |
| Authors: | K Yoshinaga M Chiyoda A Yoneda H Nishida M Komatsu |
| |
| Institution: | (1) Department of Applied Chemistry Kyushu Institute of Technology, Sensui Tobata, Kitakyushu 804-0855, Japan, JP;(2) Fine Chemicals Research Center Catalysts & Chemicals Industry Co. Ltd. Kitaminato 13-2, Wakamatsu Kitakyushu 808-0027, Japan e-mail: khyosina@che.kyutech.ac.jp Tel.: +81-93-8843316 Fax: +81-93-8843316, JP |
| |
| Abstract: | The formation of colloid crystals from monodisperse and polymer-modified silica particles in organic solvents was investigated.
Maleic anhydride–styrene copolymer-modified silica formed crystals in polar organic solvents, which dissolve the copolymer,
while the original colloidal silica formed crystals in organic solvents which were miscible with water. The critical volume
fraction in the crystal formation of the polymer-modified silica was lower than that from the unmodified silica in the same
solvent. Polystyrene- and poly(methyl methacrylate)-modified silica particles also crystallized in organic solvents, but the
features of the formation were different from those of poly(maleic anhydride-styrene)-modified particles.
Received: 19 September 1998 Accepted in revised form: 1 January 1999 |
| |
| Keywords: | Colloid crystal Polymer-modified colloidal silica Organic media Maleic anhydride-styrene copolymer Polystyrene Poly(methyl methacrylate) |
| 本文献已被 SpringerLink 等数据库收录！ |
