The study focuses on obtaining bamboo-based composite materials and new environmentally friendly binders with different degrees of silylation (15-35%) at different pressures and temperatures. The synthesis was carried out using silylated polystyrene (poly[trimethoxy(4-vinylphenethyl)] silane) and styrene as a binder and reinforcing agent in the presence of organic/inorganic additives, antioxidants and antipirene.
Hydrosilylation of triethoxysilane with the mixture of ortho- and para-divinylbenzene in the presen¬ce of Karstedt’s catalyst has been carried out and the corresponding product triethoxy(vinylphenethyl)silane have been obtained. The structure and composition of the obtained product were proved by means of determining molecular mass, molecular refraction, and 1H and 13C NMR spectra data. It was found that the addition reaction proceeds both in ortho-position as well as in para-position.
In this study, ZnCl2 was applied as an environmentally friendly and efficient Lewis acid catalyst for the one-pot four-component synthesis of polysubstituted dihydro-2-oxopyrroles from the reaction between dialkyl acetylenedicarboxylate, formaldehyde and amines (aromatic and aliphatic) at ambient temperature. This methodology has a number of advantages such as use of inexpensive, eco-safety of catalyst, short reaction times, high yields, easy work-up (just simple filtration), and simplicity of operation.