A novel approach for the synthesis of lactic acid-based polymers in an aqueous dispersed medium

In recent years, the search for environmentally friendly monomers has gradually increased as an important field, attracting the attention of researchers worldwide. Our approach to obtaining lactic acid-based polymers entails the use of an environmentally friendly monomer, derived from lactic acid (E...

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Bibliographic Details
Published in:Sustainable chemistry and pharmacy 2020-03, Vol.15, p.100211, Article 100211
Main Authors: Barroso, Raissa Gabriela M. Reis, Gonçalves, Sílvia B., Machado, Fabricio
Format: Article
Language:English
Subjects:
Eco-friendly latex
Lactic acid
Methyl methacrylate
Miniemulsion polymerization
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Summary:In recent years, the search for environmentally friendly monomers has gradually increased as an important field, attracting the attention of researchers worldwide. Our approach to obtaining lactic acid-based polymers entails the use of an environmentally friendly monomer, derived from lactic acid (ELA), presenting double-bond functionality, allowing it to undergo free-radical polymerization, while further having an eco-friendly water-based miniemulsion polymerization process. It has been demonstrated that the ELA/methyl methacrylate (MMA) copolymer can successfully be synthesized. Highly stable latexes were obtained at high conversion. The incorporation of ELA and its effect on the copolymer properties were evaluated; results indicated that polymer properties such as average molar masses and glass transition temperatures are strongly dependent on the ELA composition. [Display omitted] •ELA/MMA copolymers can be successfully synthesized in miniemulsion process.•Molar masses and Tg temperatures are strongly dependent on the ELA composition.•Modified lactic acid was used as monomer in free-radical polymerizations.•Aqueous dispersion was used to produce valuable environmentally friendly materials.•Very stable lactic acid-based polymeric latexes were obtained.
ISSN:2352-5541
2352-5541
DOI:10.1016/j.scp.2019.100211