Calcium Sulfate Nanoparticles with Unusual Dispersibility in Organic Solvents for Transparent Film Processing

Langmuir : the ACS Journal of Surfaces and Colloids
Sebastian LeukelWolfgang Tremel

Abstract

Calcium sulfate is one of the most important construction materials. Today it is employed as high-performance compound in medical applications and cement mixtures. We report a synthesis for calcium sulfate nanoparticles with outstanding dispersibility properties in organic solvents without further functionalization. The nanoparticles (amorphous with small γ-anhydrite crystallites, 5-50 nm particle size) form long-term stable dispersions in acetone without any sign of precipitation. 1H NMR spectroscopic techniques and Fourier-transform infrared spectroscopy (FTIR) reveal absorbed 2-propanol on the particle surfaces that induce the unusual dispersibility. Adding water to the nanoparticle dispersion leads to immediate precipitation. A phase transformation to gypsum via bassanite was monitored by an in situ kinetic FT-IR spectroscopic study and transmission electron microscopy (TEM). The dispersibility in a volatile organic solvent and the crystallization upon contact with water open a broad field of applications for the CaSO4 nanoparticles, e.g., as nanogypsum for coatings or the fabrication of hybrid composites.

References

Jan 23, 2004·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Giovanna OrsiniAdriano Piattelli
Apr 13, 2005·Dalton Transactions : an International Journal of Inorganic Chemistry·Alexander BeckerMatthias Epple
Jan 3, 2006·Journal of Colloid and Interface Science·Barbara SalvadoriLuigi Dei
Aug 23, 2008·Journal of the American Chemical Society·Stephan E WolfWolfgang Tremel
Nov 26, 2008·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Mark V Thomas, David A Puleo
Oct 6, 2011·Chemical Communications : Chem Comm·Yun-Wei WangFiona C Meldrum
Feb 8, 2014·Journal of Materials Science. Materials in Medicine·Heather A DotyJoel D Bumgardner
Feb 25, 2014·Biochimica Et Biophysica Acta·N Sindhura ReddyR Jayakumar
Mar 25, 2014·Materials Science & Engineering. C, Materials for Biological Applications·Zuoxin ZhouNicholas Dunne
Aug 22, 2014·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Stephen J McConougheyJason H Calhoun
Jan 21, 2015·Journal of the American Chemical Society·Sven BachWolfgang Tremel
Feb 5, 2015·Angewandte Chemie·Ulrich TritschlerHelmut Cölfen
Apr 2, 2016·Nature Communications·Tomasz M StawskiLiane G Benning
Jul 8, 2016·Journal of the American Chemical Society·Chang YanMichael D Fayer
Nov 30, 2016·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Austin D LedinghamF Kurtis Kasper
May 17, 2017·Biophysics Reviews·Jörg StetefeldTrushar R Patel
Jan 9, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Martin KluenkerWolfgang Tremel

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Citations

Oct 24, 2018·Journal of the American Chemical Society·Sebastian LeukelWolfgang Tremel

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