Sol-gel microspheres doped with glycerol: A structural insight in light of forthcoming applications in the polyurethane foam industry (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Sol-gel microspheres doped with glycerol: A structural insight in light of forthcoming applications in the polyurethane foam industry (Articolo in rivista) (literal)

Anno

• 2015-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1002/open.201402107 (literal)

Alternative label

• Ciriminna, Rosaria; Fidalgo, Alexandra M.; Ilharco, Laura M.; Pagliaro, Mario (2015)
  Sol-gel microspheres doped with glycerol: A structural insight in light of forthcoming applications in the polyurethane foam industry
  in ChemistryOpen
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Ciriminna, Rosaria; Fidalgo, Alexandra M.; Ilharco, Laura M.; Pagliaro, Mario (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.scopus.com/record/display.url?eid=2-s2.0-84923273923&origin=inward (literal)

Rivista

• ChemistryOpen (Rivista)

Note

• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto Per Lo Studio Dei Materiali Nanostrutturati, CNR, Rome, Italy; Centro de Quimica-Fisica Molecular, Instituto Superior Técnico, Lisboa, Portugal. (literal)

Titolo

• Sol-gel microspheres doped with glycerol: A structural insight in light of forthcoming applications in the polyurethane foam industry (literal)

Abstract

• Porous silica-based microspheres encapsulating aqueous glycerol can be potential curing agents for one-component foams (OCFs). Such agents have the advantage of an enhanced sustainability profile on top of being environmentally friendly materials. A synthetically convenient and scalable sol-gel process was used to make silica and organosilica microspheres doped with aqueous glycerol. These methyl-modified silica microspheres, named \"GreenCaps\", exhibit remarkable physical and chemical stability. The microspheres were characterized by scanning electron microscopy, transmission electron microscopy at reduced pressure, and cryogenic nitrogen adsorption-desorption 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. (literal)

Prodotto di

• Nanomateriali multifunzionali per applicazioni chimiche avanzate (PM.P03.003.003) (Modulo)
• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)

Autore CNR

• MARIO PAGLIARO (Unità di personale interno)
• ROSARIA CIRIMINNA (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Sol-gel microspheres doped with glycerol: A structural insight in light of forthcoming applications in the polyurethane foam industry" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• MARIO PAGLIARO (Unità di personale interno)
• ROSARIA CIRIMINNA (Unità di personale interno)

Prodotto

• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)
• Nanomateriali multifunzionali per applicazioni chimiche avanzate (PM.P03.003.003) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• ChemistryOpen (Rivista)

Insieme di parole chiave di

• Parole chiave di "Sol-gel microspheres doped with glycerol: A structural insight in light of forthcoming applications in the polyurethane foam industry" (Insieme di parole chiave)