Carbajo M C, Climent E, Enciso E, Torralvo M J
Departamento de Química Inorgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, 28040 Madrid, Spain.
J Colloid Interface Sci. 2005 Apr 15;284(2):639-45. doi: 10.1016/j.jcis.2004.10.016.
Assemblies of colloidal particles are frequently used in novel applications, and this requires nondestructive methods allowing overall characterization of the sample and collection of information about the quality of the arrays. From suspensions of polystyrene, poly[styrene-co-(2-hydroxyethylmethacrylate)], poly[styrene-co-acrylic acid], and poly[styrene-co-methacrylic acid], assemblies of spherical particles were obtained by elimination of the solvent in different ways-evaporation, gravity deposition, and filtration. These latex particle packings were characterized by scanning and transmission electron microscopy and by gas adsorption to determine the efficiency of packing. The surface area, total pore volume, and pore size distributions obtained from the adsorption and desorption data were related to characteristic parameters calculated for cubic close-packed spherical particles.
胶体颗粒聚集体常用于新型应用中，这就需要采用无损方法来全面表征样品并收集有关阵列质量的信息。从聚苯乙烯、聚[苯乙烯-共-(甲基丙烯酸2-羟乙酯)]、聚[苯乙烯-共-丙烯酸]和聚[苯乙烯-共-甲基丙烯酸]的悬浮液中，通过不同方式（蒸发、重力沉积和过滤）去除溶剂，得到了球形颗粒聚集体。这些乳胶颗粒填充物通过扫描电子显微镜、透射电子显微镜和气体吸附进行表征，以确定填充效率。从吸附和解吸数据获得的表面积、总孔体积和孔径分布与为立方密堆积球形颗粒计算的特征参数相关。
