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Bacterial polyester poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was reinforced with cellulose nanowhiskers (CNW) in 1–5wt.% concentrations using a solvent casting method. The CNW was prepared from microcrystalline cellulose (MCC) using sulfuric acid hydrolysis. The influence of CNW on the PHBV crystallization, thermal, dynamic mechanical and mechanical properties were evaluated using polarized...
Semicrystalline polylactide (PLA) exhibits high tensile strength and modulus but very low strain-at-break and toughness. In this study, PLA nanocomposites with nano-sized precipitated calcium carbonate (NPCC) and organically modified montmorillonite (MMT) clay were prepared by melt extrusion. Morphologies, tensile mechanical properties, dynamic mechanical and rheological properties, polymer–nanoparticle...
The reactions of 4-bromobutyric acid, 5-bromopentanoic acid, 6-bromohexanoic acid, 8-bromo-octanoic acid, 11-bromoundecanoic acid and 12-methanesulfonyloxydodecanoic acid with the bicarbonate forms of various anion-exchange resins were investigated. Both macroporous resins and 2% crosslinked gel-type resins were used. The macroporous resins and some of the gel-type resins had quaternary ammonium...
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