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在聚乙二醇（ＰＥＯ）存在下，ＣａＣｌ２和Ｎａ２ＣＯ３反应得多晶形碳酸钙沉淀，Ｘ－衍射显示主要为文石型结构，并随着ＰＥＯ／Ｃａ摩尔比的增大，晶体颗粒变小。结果表明，聚合物对碳酸钙晶核的形成和晶体的生长有很大影响。本文还对其形成机理进行了初步探讨。
In the presence of polyethylene glycol (PEO), CaCl2 and Na2CO3 reacted to form polymorphic calcium carbonate, X-ray diffraction showed a mainly aragonitic structure, and with the increase of PEO / Ca molar ratio, the crystal particles became smaller. The results show that the polymer has a great influence on the formation of calcium carbonate nuclei and crystal growth. This article also made a preliminary discussion of its formation mechanism.