Formation of colloid crystals from polymer-modified monodisperse colloidal silica in organic solvents
Formation of colloid crystals from polymer-modified monodisperse colloidal silica in organic solvents
复制标题
聚合物改性单分散胶体二氧化硅在有机溶剂中形成胶体晶体
DOI：
10.1007/s003960050412
复制
发表时间：
1999
影响因子：
2.4
通讯作者：
M. Komatsu
中科院分区：
文献类型：
--
作者：
K. Yoshinaga;M. Chiyoda;A. Yoneda;Hiroyasu Nishida;M. Komatsu
研究了单分散和聚合物改性的二氧化硅颗粒在有机溶剂中形成胶体晶体的情况。马来酸酐-苯乙烯共聚物改性二氧化硅在极性有机溶剂中形成晶体，溶解共聚物，而原始胶体二氧化硅在与水混溶的有机溶剂中形成晶体。在相同溶剂中，聚合物改性二氧化硅晶体形成的临界体积分数低于未改性二氧化硅。聚苯乙烯和聚(甲基丙烯酸甲酯)改性二氧化硅颗粒也在有机溶剂中结晶，但形成的特征与聚(马来酸酐-苯乙烯)改性颗粒不同。
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.