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Application of Vegetable Oil-Based Monomers in the Synthesis of Acrylic Latexes via Emulsion Polymerization
Year: 2023
Type of publication: článek v odborném periodiku
Name of source: Coatings
Publisher name: MDPI
Place: BASEL
Page from-to: 262
Titles:
Language Name Abstract Keywords
cze Aplikace monomerů z rostlinných olejů v syntéze akrylátových latexů pomocí emulzní polymerace Dva výchozí biomateriály, řepkový olej a technická kyselina olejová, byly modifikovány na akrylátové monomery. Tyto materiály byly následně použity pro syntézu akrylátových kopolymerů, určených pro aplikace v nátěrových hmotách, pomocí emulzní polymerace. řepkový olej; kyselina olejová; akrylátový latex; emulzní polymerace; molární hmotnost; AF4; nátěr
eng Application of Vegetable Oil-Based Monomers in the Synthesis of Acrylic Latexes via Emulsion Polymerization In this work, two bio-based raw materials, rapeseed oil and technical-grade oleic acid, were modified to yield acrylated monomers. Polymeric latexes designed for coating applications were synthesized using emulsion polymerization. Methyl methacrylate and butyl acrylate were copolymerized with various ratios of the acrylated bio-based monomers (0-20 wt.% in the monomer mixture). The polymerization with high monomer conversion and low coagulum content was successfully performed up to the content of 15 wt.% of the bio-based monomers, leading to long-term stable latexes. The asymmetric flow field flow fractionation coupled with a multi-angle light scattering detector was used to describe the molar mass distribution of the synthesized copolymers. Ultra-high molar mass fractions were detected in copolymers comprising the bio-based monomers due to the presence of multi-acrylated bio-based ingredients originating from linoleic and linolenic fatty acids. This phenomenon became more pronounced for the rapeseed oil-originated monomer. The prepared latexes comprising copolymerized bio-based monomers showed comparable or even better coating performance in terms of gloss and water resistance in comparison with the reference acrylic coating, which makes the acrylated vegetable oil-based monomers attractive for the manufacturing of sustainable water-borne materials in the coating industry. rapeseed oil; oleic acid; acrylic latex; emulsion polymerization; molar mass; AF4; coating