Antimicrobial activity of carbon monoxide-releasing 1 molecule [Mn(CO)3(tpa-k3N)]Br versus multidrug-2 resistant isolates of Avian Pathogenic Escherichia coli 3 and its synergy with colistin
2017
The purpose of this study is to demonstrate the properties of novel nanocomposites, based on
cycloaliphatic epoxy resin additionally reinforced with silicon-containing nanostructures (mono-
or octa-functional POSS or nanosilica). The changes in properties are discussed for the varied
combinations of cycloaliphatic epoxy with a curing agent (cycloaliphatic amine or anhydride) and
the nanomodifier. The in
uence of modification on thermal stability, curing behaviour, morphology,
surface chemistry, and topography were studied with TGA, DSC, ATR-FTIR, XPS and LCM. The
results show that when POSS and/or nanosilica are incorporated to the cycloaliphatic matrix they
in
uence curing behaviour and glass transition temperatures (Tg), where mono-POSS increases Tg
and octa-POSS decreases it with respect to nanosilica. Mono-POSS produces silicon-rich surfaces
but tends to agglomerate and increase surface roughness. Octa-POSS and nanosilica penetrate the
polymer matrix more deeply and disperse more easily. From the selected modifiers, octa-POSS
shows the highest thermal stability.
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