CRYSTALLIZATION OF INORGANIC-COMPOUNDS IN POLYMER-SOLUTIONS .1. CONTROL OF SHAPE AND FORM OF CALCIUM-CARBONATE
CRYSTALLIZATION OF INORGANIC-COMPOUNDS IN POLYMER-SOLUTIONS .1. CONTROL OF SHAPE AND FORM OF CALCIUM-CARBONATE
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DOI：
10.1007/bf01095057
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发表时间：
1992-12-01
影响因子：
2.4
通讯作者：
KOYAMA, K
中科院分区：
文献类型：
--
作者：
KAWAGUCHI, H;HIRAI, H;KOYAMA, K
通过在水溶性聚合物存在下混合碳酸钠和硝酸钙的水溶液来沉淀碳酸钙。当前者倒入溶解有一定量聚苯乙烯磺酸钠的后者时，产生单分散球形晶体。晶体形式为球霰石，但在不存在聚合物的情况下，获得菱形方解石晶体。研究了决定晶体形状和形式的因素，并讨论了聚合物在独特晶体形成中的作用。
Calcium carbonate was precipitated by mixing aqueous solutions of sodium carbonate and calcium nitrate in the presence of water-soluble polymers. When the former was poured into the latter, in which a certain amount of sodium poly(styrenesulfonate) was dissolved, monodisperse spherical crystals were created. The crystal form was vaterite, although, in the absence of the polymer, calcite crystals were obtained in rhombic shape. The factors deciding the shape and form of the crystal were investigated and the role of polymer in the formation of unique crystals was discussed.