Investigation of product formation in the H + HC = C = CH reaction: a comparison of experimental and theoretical kinetics.

Context: The HCCCH radical plays a crucial role in combustion chemistry, astrophysical processes, and the formation of complex organic molecules, serving as a key intermediate in the synthesis of polycyclic aromatic hydrocarbons and soot precursors. The reactions of HCCCH with small species are significant for understanding the mechanisms of hydrocarbon transformation in combustion, atmospheric chemistry, and interstellar environments. In the present study, the mechanism and kinetics of the H + HCCCH have been thoroughly characterized.

Modification of graphene oxide and its effect on properties of natural rubber/graphene oxide nanocomposites.

Modification of graphene oxide (GO) by vinyltriethoxysilane (VTES) was investigated to study the effect of silanized GO on radical graft copolymerization of GO onto deproteinized natural rubber (DPNR). The modified GO, GO-VTES (a and b), was characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy, contact angle, thermal gravimetric analysis, and scanning electron microscopy. The XRD results showed the appearance of an amorphous region of silica particles at a diffraction angle of 22°.

Biodegradation of natural rubber and deproteinized natural rubber by enrichment bacterial consortia.

This study examined the biodegradation of natural rubber (NR) and deproteinized natural rubber (DPNR) by bacterial consortia enriched from a rubber-processing factory's waste in Vietnam. The results reveal the degradation in both NR and DPNR, and the DPNR was degraded easier than NR. The highest weight loss of 48.