Cargando…
Free-Radical Copolymerization Behavior of Plant-Oil-Based Vinyl Monomers and Their Feasibility in Latex Synthesis
[Image: see text] Vinyl monomers from soybean, sunflower, linseed, and olive oils were copolymerized with styrene (St), methyl methacrylate (MMA), and vinyl acetate (VAc) to determine the reactivity of biobased monomers in radical copolymerization, as well as their feasibility in emulsion processes...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2016
|
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6640796/ https://www.ncbi.nlm.nih.gov/pubmed/31457203 http://dx.doi.org/10.1021/acsomega.6b00308 |
_version_ | 1783436648273412096 |
---|---|
author | Demchuk, Zoriana Shevchuk, Oleh Tarnavchyk, Ihor Kirianchuk, Vasylyna Lorenson, Maria Kohut, Ananiy Voronov, Stanislav Voronov, Andriy |
author_facet | Demchuk, Zoriana Shevchuk, Oleh Tarnavchyk, Ihor Kirianchuk, Vasylyna Lorenson, Maria Kohut, Ananiy Voronov, Stanislav Voronov, Andriy |
author_sort | Demchuk, Zoriana |
collection | PubMed |
description | [Image: see text] Vinyl monomers from soybean, sunflower, linseed, and olive oils were copolymerized with styrene (St), methyl methacrylate (MMA), and vinyl acetate (VAc) to determine the reactivity of biobased monomers in radical copolymerization, as well as their feasibility in emulsion processes for the synthesis of biobased latexes. Radical copolymerization of plant-oil-based monomers is described with the classical Mayo–Lewis equation. Using emulsion (or miniemulsion) polymerization with MMA or VAc, stable aqueous polymer dispersions with latex particles measuring 80–160 nm and containing 3–35 wt % of biobased monomer units were successfully synthesized. The number-average molecular weight of the latex copolymers (20 000–150 000) decreases by increasing the degree of unsaturation in monomers and their content in the reaction feed. The presence of plant-oil-based fragments changes the T(g) of resulting copolymers from 105 to 79 °C in copolymerization with MMA and from 30 to 11 °C in copolymerization with Vac. As a result, biobased units provide considerable flexibility (elongation at break of about 250%) and improve the toughness of the normally rigid and brittle poly(MMA). Even a small amount (2–5%) of biobased fragments incorporated into the structure of poly(VAc) significantly improves water resistance and provides hydrophobicity to the resulting polymer latex films. The obtained results clearly indicate that the vinyl monomers from plant oils can be considered as good candidates for internal plasticization of polymeric materials through reducing intermolecular interactions in copolymers. |
format | Online Article Text |
id | pubmed-6640796 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-66407962019-08-27 Free-Radical Copolymerization Behavior of Plant-Oil-Based Vinyl Monomers and Their Feasibility in Latex Synthesis Demchuk, Zoriana Shevchuk, Oleh Tarnavchyk, Ihor Kirianchuk, Vasylyna Lorenson, Maria Kohut, Ananiy Voronov, Stanislav Voronov, Andriy ACS Omega [Image: see text] Vinyl monomers from soybean, sunflower, linseed, and olive oils were copolymerized with styrene (St), methyl methacrylate (MMA), and vinyl acetate (VAc) to determine the reactivity of biobased monomers in radical copolymerization, as well as their feasibility in emulsion processes for the synthesis of biobased latexes. Radical copolymerization of plant-oil-based monomers is described with the classical Mayo–Lewis equation. Using emulsion (or miniemulsion) polymerization with MMA or VAc, stable aqueous polymer dispersions with latex particles measuring 80–160 nm and containing 3–35 wt % of biobased monomer units were successfully synthesized. The number-average molecular weight of the latex copolymers (20 000–150 000) decreases by increasing the degree of unsaturation in monomers and their content in the reaction feed. The presence of plant-oil-based fragments changes the T(g) of resulting copolymers from 105 to 79 °C in copolymerization with MMA and from 30 to 11 °C in copolymerization with Vac. As a result, biobased units provide considerable flexibility (elongation at break of about 250%) and improve the toughness of the normally rigid and brittle poly(MMA). Even a small amount (2–5%) of biobased fragments incorporated into the structure of poly(VAc) significantly improves water resistance and provides hydrophobicity to the resulting polymer latex films. The obtained results clearly indicate that the vinyl monomers from plant oils can be considered as good candidates for internal plasticization of polymeric materials through reducing intermolecular interactions in copolymers. American Chemical Society 2016-12-22 /pmc/articles/PMC6640796/ /pubmed/31457203 http://dx.doi.org/10.1021/acsomega.6b00308 Text en Copyright © 2016 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Demchuk, Zoriana Shevchuk, Oleh Tarnavchyk, Ihor Kirianchuk, Vasylyna Lorenson, Maria Kohut, Ananiy Voronov, Stanislav Voronov, Andriy Free-Radical Copolymerization Behavior of Plant-Oil-Based Vinyl Monomers and Their Feasibility in Latex Synthesis |
title | Free-Radical Copolymerization Behavior of Plant-Oil-Based
Vinyl Monomers and Their Feasibility in Latex Synthesis |
title_full | Free-Radical Copolymerization Behavior of Plant-Oil-Based
Vinyl Monomers and Their Feasibility in Latex Synthesis |
title_fullStr | Free-Radical Copolymerization Behavior of Plant-Oil-Based
Vinyl Monomers and Their Feasibility in Latex Synthesis |
title_full_unstemmed | Free-Radical Copolymerization Behavior of Plant-Oil-Based
Vinyl Monomers and Their Feasibility in Latex Synthesis |
title_short | Free-Radical Copolymerization Behavior of Plant-Oil-Based
Vinyl Monomers and Their Feasibility in Latex Synthesis |
title_sort | free-radical copolymerization behavior of plant-oil-based
vinyl monomers and their feasibility in latex synthesis |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6640796/ https://www.ncbi.nlm.nih.gov/pubmed/31457203 http://dx.doi.org/10.1021/acsomega.6b00308 |
work_keys_str_mv | AT demchukzoriana freeradicalcopolymerizationbehaviorofplantoilbasedvinylmonomersandtheirfeasibilityinlatexsynthesis AT shevchukoleh freeradicalcopolymerizationbehaviorofplantoilbasedvinylmonomersandtheirfeasibilityinlatexsynthesis AT tarnavchykihor freeradicalcopolymerizationbehaviorofplantoilbasedvinylmonomersandtheirfeasibilityinlatexsynthesis AT kirianchukvasylyna freeradicalcopolymerizationbehaviorofplantoilbasedvinylmonomersandtheirfeasibilityinlatexsynthesis AT lorensonmaria freeradicalcopolymerizationbehaviorofplantoilbasedvinylmonomersandtheirfeasibilityinlatexsynthesis AT kohutananiy freeradicalcopolymerizationbehaviorofplantoilbasedvinylmonomersandtheirfeasibilityinlatexsynthesis AT voronovstanislav freeradicalcopolymerizationbehaviorofplantoilbasedvinylmonomersandtheirfeasibilityinlatexsynthesis AT voronovandriy freeradicalcopolymerizationbehaviorofplantoilbasedvinylmonomersandtheirfeasibilityinlatexsynthesis |