Features of synthesis and copolymerization of vinyl monomer based on olive oil
DOI:
https://doi.org/10.31548/bio2018.03.014Abstract
During the last two decades, interest in bioresources has grown significantly. The formation of polymeric materials from renewable resources, especially vegetable oils, today attracts considerable attention due to the current high cost of petroleum products, as well as their negative impact on the environment. Renewable materials, mainly vegetable oils, have become widely used in the synthesis of new polymer materials, due to their availability, biodegradability and low cost. An important task of modern research is the search for ways to create waterproof protective coatings. Hydrophobic monomers based on vegetable oils can be used in the production of waterproof polymer coatings, plasticizers, paints, adhesives, etc.
The purpose of the work was synthesis of monomer based on triglycerides of olive oil - (acryloylamino)ethyl oleate, study of miniemulsion copolymerization and physico-mechanical properties of latex films based on the copolymers.
The monomer structure was confirmed by 1H NMR spectroscopy. Through miniеmulsion copolymerization, latex copolymers of (acryloylamino)ethyl oleate with methyl methacrylate and styrene were obtained. Increasing of the content of (acryloylamino)ethyl oleate fragments in latex polymers provides the plasticizing effect and a corresponding decreasing of the glass transition temperature of the latex copolymers. With an increase of the plant oil-based monomers content in the latex polymer, the Young's modulus decreases and the relative tensile strength at the break increases, which confirms the appearance of the intramolecular plasticizing effect. It has been shown that the presence of the (acryloylamino)ethyl oleate fragments in latex copolymers enhances the hydrophobicity of latex films, which implies their use in polymeric coatings as additives with good barrier properties.
(Acryloylamino)ethyl oleate and its copolymers derived from renewable raw materials have good prospects for the synthesis of aqueous dispersions of polymers (latexes) and coatings on their basis, providing highly effective protective properties: hydrophobicity, atmospheric resistance.
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