Co-effects of amines molecules and chitosan films on in vitro calcium carbonate mineralization. (20th November 2015)

• Record Type: Journal Article
• Authors: Cui, Jifei; Kennedy, John F.; Nie, Jun; Ma, Guiping
• Is Part Of: Carbohydrate polymers. Volume 133(2015)
• Page Start: 67
• Page End: 73
• Publication Date: 2015-11-20
• Subjects: Calcium carbonate -- Mineralization -- Amine molecules -- Chitosan film; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2015.06.096
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: Morphologies of CaCO3 were obtained by the co-effect of chitosan and positively charged monomers. The effect of monomers on mineralization of CaCO3 was investigated. The reason of monomers on mineralization of CaCO3 was analyzed. Abstract: Amines monomers, N, N -dimethylaminoethyl methacrylate (DMAEMA), N, N -dimethylethanolamine (DMEA), 2-dimethylaminoethylamine (DMEDA) and N -methiyldiethanolamine (MDEA) were used to induce the formation of calcium carbonate (CaCO3 ) crystals on chitosan films, by using (NH4)2 CO3 diffusion method at ambient temperature. The obtained CaCO3 particles were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) and Energy dispersive spectroscopy (EDS). The influence of reaction variables, such as the additive concentration and their types were also investigated on the products. The morphologies of CaCO3 crystals, inter-grown in cube-shape, were controlled by DMAEMA and DMEA. It was observed that the morphologies of CaCO3 changed from the cube grown arms to massive calcite with a hole on the face by increasing the concentrations of DMEDA and MDEA. While the precipitation grew on chitosan film without any organic additive, only single cube-shaped crystals were obtained. By these results the possible mechanisms can be proposed that electronic movement of the groups on the monomer effected ions configuration and molecules absorbed on the exposed surface, resulted the change of the surface energy, which caused the change in the morphology of CaCO3 .