Investigation on the Low-Temperature Transformations of Poly(furfuryl alcohol) Deposited on MCM-41

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Title: Investigation on the Low-Temperature Transformations of Poly(furfuryl alcohol) Deposited on MCM-41
Authors: Janus, Rafał | Wach, Anna | Kuśtrowski, Piotr | Dudek, Barbara | Drozdek, Marek | Silvestre Albero, Ana | Rodríguez Reinoso, Francisco | Cool, Pegie
Research Group/s: Materiales Avanzados
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Low-temperature transformations | Poly(furfuryl alcohol) | MCM-41 | Mesoporous silica
Knowledge Area: Química Inorgánica
Issue Date: 12-Feb-2013
Publisher: American Chemical Society
Citation: Langmuir. 2013, 29(9): 3045-3053. doi:10.1021/la3041852
Abstract: MCM-41-type mesoporous silica was used as a support for poly(furfuryl alcohol) deposition. This material was produced by precipitation–polycondensation of furfuryl alcohol (FA) in aqueous slurry of the SiO2 support followed by controlled partial carbonization. By tuning the FA/MCM-41 mass ratio in the reaction mixture, various amounts of polymer particles were introduced on the inner and outer surface of the MCM support. The thermal decomposition of the PFA/MCM-41 composites was studied by thermogravimetry (TG) and spectroscopic techniques (DRIFT, XPS), whereas the evolution of textural parameters with increasing polymer content was investigated using low-temperature adsorption of nitrogen. The mechanism of thermal transformations of PFA deposited on the MCM-41 surface was discussed in detail. It was found that heating at a temperature of about 523 K resulted in opening of the furan rings and the formation of γ-diketone moieties, which were found to be the highest effective surface species for the adsorption of polar volatile organic compounds. A further increase in calcination temperature caused a drop in the amounts of surface carbonyls and the appearance of condensed aromatic domains.
Sponsor: This work was supported by the Polish Ministry of Science and Higher Education under Grant N N507 553238. Rafał Janus thanks the Foundation for Polish Science MPD Programme cofinanced by the EU European Regional Development Fund for the financial support. The research was carried out with equipment purchased thanks to financial help from the European Regional Development Fund within the framework of the Polish Innovation Economy Operational Program (Contract POIG.02.01.00-12-023/08).
ISSN: 0743-7463 (Print) | 1520-5827 (Online)
DOI: 10.1021/la3041852
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2013 American Chemical Society
Peer Review: si
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Appears in Collections:INV - LMA - Artículos de Revistas

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