The large availability and renewable nature of lignin makes its upgrading to bioproducts particular interest for sustainable development. hydrodeoxygenation (HDO) anisole specifically represents a model reaction the conversion biofuels through removal aromatic carbon-oxygen bonds. To date, range Ni-based catalysts have been reported as highly active systems HDO anisole. However, there has subst...

Surfactants such as quaternary ammonium salts (QAS) have been in increasing demand, for emerging new applications. Recent attempts at process intensification of their production disclosed the need a better understanding QAS thermal stability. This work aims to determine degradation kinetics various QASs and associated solvent effects. The four methyl carbonate were determined polar solvents sta...

Vapor-phase synthesis techniques of polymeric nanostructures offer unique advantages over conventional, solution-based techniques because of their solventless nature. In this work, we report the fabrication of coaxial polymer nanotubes using two different chemical vapor deposition methods. The fabrication process involves the deposition of an outer layer of the conductive polyaniline (PANI) by ...

In recent years, intensive studies have been carried out regarding the sensory activity of the individual components of the odours of various alcoholic beverages and the dependence between the odour and the chemical composition of the volatile fraction of these products, using gas chromatography with olfactometric detection (GC–O). GC–O is a technique based on sensory evaluation of the eluate f...

Multiple pesticides in water samples were successfully analyzed using an Agilent 5975T LTM GC/MSD equipped with an Agilent J&W DB-5ms Ultra Inert low thermal mass column module, with stir bar sorptive extraction and an Agilent Thermal Separation Probe for sample preparation. The method was simple, rapid, effective, and showed good linearity (R2 >0.9914) and high sensitivity for most of the targ...

The biodegradability and biocompatibility properties of ε-caprolactone homopolymers place it as a valuable raw material, particularly for controlled drug delivery and tissue engineering applications. However, the usefulness of such materials is limited by their low hydrophilicity and slow biodegradation rate. In order to improve polycaprolactone properties and functionalities, copolymerization ...

Novel segmented thermoplastic polyurethane (TPU) copolymers were synthesized using two-step solventless bulk polymerization. 4,4’-methylenediphenyl diisocyanate (MDI) and 1,4-Butanediol (BDO) were used to form hard segment of TPU and α,ω-dihydroxy-[poly(propyleneoxide)-poly (dimethylsiloxane)-poly(propyleneoxide)] (α,ω-dihydroxy-(PPO-PDMS-PPO)) was used to form soft segment of TPU, where the mo...