AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Authors: SALIHA LOUGHMARI, MARC VISSEAUX, ABDELAZIZ EL BOUADILI.
DOI: 10.24193/subbchem.2024.1.12
Published Online: 2024-03-30
Published Print: 2024-03-30
pp. 187-200
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The use of natural materials derived from biomass or biodegradable polymer materials can be one of the solutions to be considered in reducing environmental pollution problems. In addition, some polymers have been shown to be biocompatible and thus beneficial in biomedical applications. Therefore, within the framework of this study, we will present the results of the application of lanthanide-borohydride systems (Nd(BH4)3(THF)3) combined with n-butylethyl magnesium in the block copolymerization of conjugated dienes (myrcene-styrene) and a conjugated diene with a polar monomer (L-lactide) for the synthesis of bio-sourced elastomers. The analysis of copolymers resulting from the copolymerization between myrcene and styrene shows that it is possible to insert up to 9.9% of styrene. Moreover, the stereoselectivity (1,4-trans) of the myrcene motif has not significantly changed, even in the presence of a significant amount of styrene in the reaction medium. The presence of the copolymer was confirmed by the observation of a peak at 146 ppm which corresponds to the ipso carbon of styrene.
Keywords: fatty acid, vegetable oils, gas-chromatography, method validation
