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Synthesis of Eco-Friendly Polymer Dispersions and Evaluation of Their Biodegradability
Authors: Puková Kateřina | Machotová Jana | Mikulášek Petr | Rückerová Adéla
Year: 2019
Type of publication: ostatní - přednáška nebo poster
Page from-to: nestránkováno
Titles:
Language Name Abstract Keywords
eng Synthesis of Eco-Friendly Polymer Dispersions and Evaluation of Their Biodegradability This paper deals with the synthesis and application of a glucose-based derivative. The synthesis of 1-O-allyl-D-glucopyranoside (GP) was performed by glycosidation of D-glucose and allyl alcohol catalyzed with boron trifluoride etherate under anhydrous conditions. After the purification, the 1-O-allyl-D-glucopyranoside can be used for the preparation of latexes by the emulsion polymerization technique of vinyl monomers. This glycoside derivative was incorporated emulsion polymers via the reactive allyl group. Vinyl acetate (VAc), polyvinyl alcohol (PVA) and GP were used as main components for the preparation of a biologically degradable polymeric material. Polyvinyl acetate (PVAc) created during the reaction was subjected to alkaline hydrolysis during the polymerization process leading to the formation of vinyl alcohol units that determines the biodegradability and the solubility of the final polymer product in water. There is a general consensus that hydrolyzed polymers are more biodegradable than unhydrolyzed due to the differences in degradation processes and nutrient release mechanisms. Testing of biodegradation was mainly focused on watery systems, therefore degradability testing was performed by BOD5 cuvette tests. It was confirmed that a fully degradable copolymer with GP was prepared. Moreover, it was found that latexes containing GP exhibited sufficient storage stability, neutral pH and low viscosity suitable for coatings application. Their coatings exhibited transparency, water solubility and biodegradability. These latexes are potentially applicable in the field of sustained release fertilizer encapsulation or as an ecological paper glue with a subsequent low biological disposal. 1-O-allyl-D-glucopyranoside; emulsion polymerization; biological degradability

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