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Aragonite Nanorods in Calcium Carbonate/Polymer Hybrids Formed through Self-Organization Processes from Amorphous Calcium Carbonate Solution

机译:碳酸钙/聚合物杂化物中的文石纳米棒通过无定形碳酸钙溶液的自组织过程形成

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摘要

Nanostructured inorganic/polymer hybrid thin films comprising aragonite nanorods derived from aqueous suspensions of amorphous calcium carbonate (ACC) are prepared. For the formation of calcium carbonate (CaCO_3)/polymer hybrids, spincoated and annealed films of poly (vinyl alcohol) (PVA) that function as polymer matrices are soaked in aqueous colloidal solutions dispersing ACC stabilized by poly (acrylic acid) (PAA). In the initial stage,calcite thin films form on the surface. Subsequently,aragonite crystals start to form inside the PVA matrix that contains PVA crystallites which induce aragonite nucleation. Nanostructured hybrids composed of calcite thin films consisting of nanoparticles and assembled aragonite nanorods are formed in the matrices of PVA.
机译:制备包含文石纳米棒的纳米结构无机/聚合物杂化薄膜,该文石纳米棒衍生自无定形碳酸钙(ACC)的水悬浮液。为了形成碳酸钙(CaCO_3)/聚合物杂化物,将用作聚合物基质的聚乙烯醇(PVA)的旋涂和退火薄膜浸泡在胶体水溶液中,该溶液分散了由聚丙烯酸(PAA)稳定的ACC。在初始阶段,方解石薄膜在表面形成。随后,文石晶体开始在包含引起文石成核的PVA微晶的PVA基质内形成。在PVA基质中形成由方解石薄膜组成的纳米结构杂化物,方解石薄膜由纳米颗粒和组装的文石纳米棒组成。

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