Siliceous materials were prepared by adding one or more additives, including one or more water soluble polymers, and derivatives thereof, as well as trifunctional silanes, to sols containing tetraalkoxysilanes derived from polyols. The polymers facilitate phase separation of the growing silica gel matrix, leading to high surface area self-supporting silica gels with cure occurring at ambient temperatures. The materials also show a significant reduction in shrinkage properties and significant protein stabilization abilities.
通过向含有多元醇衍生的四烷氧基
硅烷的溶胶中添加一种或多种添加剂,包括一种或多种
水溶性聚合物及其衍
生物,以及三官能团
硅烷,制备了
硅质材料。聚合物有助于生长
二氧化硅凝胶基体的相分离,导致具有高比表面积、自支撑的
硅凝胶,在常温下发生固化。该材料还表现出显著的收缩性能降低和显著的蛋白稳定能力。