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A synthetically convenient and scalable sol\u2010gel process was used to make silica and organosilica microspheres doped with aqueous glycerol. These methyl\u2010modified silica microspheres, named \u201cGreenCaps\u201d, exhibit remarkable physical and chemical stability. The microspheres were characterized by scanning electron microscopy, transmission electron microscopy at reduced pressure, and cryogenic nitrogen adsorption\u2014desorption analysis. The structure of the materials was also analyzed at the molecular level by diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy. As expected, the degree of methylation affects the degree of encapsulation and pore structure. Microspheres similarly methylated, however, can differ considerably in surface area and pore size due to the templating effect of glycerol on the organosilica structure. The results of the structure analysis reveal that glycerol is efficiently encapsulated, acts as a template, barely leaches over time, but is released by depressurization. A proper application of these microspheres can later on enhance both the environmental and health profile, as well as the technical performance (curing speed, foam quality, and froth thixotropy) of spray polyurethane foams.<\/jats:p>","DOI":"10.1002\/open.201402107","type":"journal-article","created":{"date-parts":[[2015,2,19]],"date-time":"2015-02-19T15:59:31Z","timestamp":1424361571000},"page":"120-126","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Sol\u2010Gel Microspheres Doped with Glycerol: A Structural Insight in Light of Forthcoming Applications in the Polyurethane Foam Industry"],"prefix":"10.1002","volume":"4","author":[{"given":"Rosaria","family":"Ciriminna","sequence":"first","affiliation":[{"name":"Istituto per lo Studio dei Materiali Nanostrutturati (CNR  via U. La Malfa 153 90146 Palermo (Italy"}]},{"given":"Alexandra","family":"Fidalgo","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica-F\u00edsica Molecular and Institute of Nanoscience &amp; Nanotechnology (IN Instituto Superior T\u00e9cnico, Complexo I  Av. Rovisco Pais 1 1049-001 Lisboa (Portugal"}]},{"given":"Laura M.","family":"Ilharco","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica-F\u00edsica Molecular and Institute of Nanoscience &amp; Nanotechnology (IN Instituto Superior T\u00e9cnico, Complexo I  Av. Rovisco Pais 1 1049-001 Lisboa (Portugal"}]},{"given":"Mario","family":"Pagliaro","sequence":"additional","affiliation":[{"name":"Istituto per lo Studio dei Materiali Nanostrutturati (CNR  via U. 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