| Title: | Investigation on the low-temperature transformations of poly(furfuryl alcohol) deposited on MCM-41 |
| Author(s): | Janus R; Wach A; Kustrowski P; Dudek B; Drozdek M; Silvestre-Albero AM; Rodriguez-Reinoso F; Cool P; |
| Address: | "Department of Chemical Technology, Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland" |
| ISSN/ISBN: | 1520-5827 (Electronic) 0743-7463 (Linking) |
| 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 gamma-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" |
| Notes: | "PubMed-not-MEDLINEJanus, Rafal Wach, Anna Kustrowski, Piotr Dudek, Barbara Drozdek, Marek Silvestre-Albero, Ana Maria Rodriguez-Reinoso, Francisco Cool, Pegie eng 2013/02/14 Langmuir. 2013 Mar 5; 29(9):3045-53. doi: 10.1021/la3041852. Epub 2013 Feb 21" |
