Synthesis and characterization of sulfonated polymethylsiloxane polymer as template for crystal growth of CaCO3
Por:
Neira-Carrillo A., Pai R.K., Fernández M.S., Carreño E., Quitral P.V., Arias J.L.
Publicada:
1 ene 2009
Resumen:
The objective of this work was to synthesize a sulfonated polymethylsiloxane (S-PMS) by hydrosilylation and sulfonation reactions and to investigate their effect on the growth of CaCO3 crystals using a gas diffusion method as a function of concentration, pH, and time. The result of IR and NMR shows good agreement with all proposed structures. Scanning electron microscopy images of CaCO3 showed small well-defined calcite-forming short piles (ca 5 ?m) and elongated calcite (ca 20 ?m) crystals. The morphology of the resultant CaCO3 crystals reflects the electrostatic interaction of sulfonate moieties and Ca2+ modulated by S-PMS adsorbed onto the CaCO3 surface. X-ray diffraction confirmed the crystalline calcite polymorph. Energy dispersive spectroscopy of CaCO3 crystals determined the presence of Si atoms from S-PMS. The use of PMS chemistry as an organic additive for the production of CaCO3 particles is a viable approach for studying the biomineralization and could be useful for the design of novel materials with desirable shape and properties. © Springer-Verlag 2008.
Filiaciones:
Neira-Carrillo A.:
Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
Center for Advanced Interdisciplinary Research in Materials (CIMAT), Santiago, Chile
Department of Physical, Inorganic and Structural Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
Departamento de Ciencias Biológicas y Animales, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11735, Santiago, Chile
Pai R.K.:
Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
Center for Advanced Interdisciplinary Research in Materials (CIMAT), Santiago, Chile
Department of Physical, Inorganic and Structural Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
Materials Chemistry Research Group, Department of Physical, Inorganic and Structural Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
Fernández M.S.:
Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
Center for Advanced Interdisciplinary Research in Materials (CIMAT), Santiago, Chile
Department of Physical, Inorganic and Structural Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
Departamento de Ciencias Biológicas y Animales, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11735, Santiago, Chile
Carreño E.:
Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
Center for Advanced Interdisciplinary Research in Materials (CIMAT), Santiago, Chile
Department of Physical, Inorganic and Structural Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
Departamento de Ciencias Biológicas y Animales, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11735, Santiago, Chile
Quitral P.V.:
Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
Center for Advanced Interdisciplinary Research in Materials (CIMAT), Santiago, Chile
Department of Physical, Inorganic and Structural Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
Departamento de Ciencias Biológicas y Animales, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11735, Santiago, Chile
Arias J.L.:
Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
Center for Advanced Interdisciplinary Research in Materials (CIMAT), Santiago, Chile
Department of Physical, Inorganic and Structural Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
Departamento de Ciencias Biológicas y Animales, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11735, Santiago, Chile
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