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Polyhedral Oligomeric Silsesquioxanes (POSSs) of general formula R7R′(SiO1.5)8, where R=isobutyl, cyclopentyl or phenyl and R′=(CH2)5CH3, (CH2)7 CH3 or (CH2)9CH3, were prepared by corner capping reaction of trisilanols with suitable alkyltriethoxysilane. The compounds obtained were characterized by elemental analysis and 1H NMR spectroscopy, and the results were in very good agreement with those of...
Thermal degradation of rigid polyurethane foams chemically modified by polyhedral silsesquioxanes was analyzed using hyphenated techniques – thermogravimetry (TG) coupled with FTIR spectroscopy and quadrupole mass chromatography (QMS). Two functionalized POSS were used – PHI-POSS as pendant group to the main PU chain and OCTA-POSS which acts as a chemical crosslinking agent due to the presence of...
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