Synthesis and characterization of sulfonated polymethylsiloxane polymer as template for crystal growth of CaCO3
2009 (English)In: Colloid and Polymer Science, ISSN 0303-402X, E-ISSN 1435-1536, Vol. 287, no 4, 385-393 p.Article in journal (Refereed) Published
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 mu m) and elongated calcite (ca 20 mu 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.
Place, publisher, year, edition, pages
2009. Vol. 287, no 4, 385-393 p.
Polysiloxane, Hydrosilylation, Gas diffusion crystallization, Calcite, Energy dispersive spectroscopy
IdentifiersURN: urn:nbn:se:su:diva-60257DOI: 10.1007/s00396-008-1974-zISI: 000264261800002OAI: oai:DiVA.org:su-60257DiVA: diva2:433849
authorCount :62011-08-112011-08-112011-08-11Bibliographically approved