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Synthesis and Effect of Structure on Swelling Properties of Hydrogels Based on High Methylated Pectin and Acrylic Polymers

The aim of the research was to develop new pectin-based hydrogels with excellent swelling properties. Superabsorbent hydrogels composed of high methylated pectin and partially neutralized poly(acrylic acid) was obtained by free radical polymerization in aqueous solution in the presence of crosslinki...

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Autores principales: Kowalski, Grzegorz, Kijowska, Karolina, Witczak, Mariusz, Kuterasiński, Łukasz, Łukasiewicz, Marcin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6401908/
https://www.ncbi.nlm.nih.gov/pubmed/30960098
http://dx.doi.org/10.3390/polym11010114
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author Kowalski, Grzegorz
Kijowska, Karolina
Witczak, Mariusz
Kuterasiński, Łukasz
Łukasiewicz, Marcin
author_facet Kowalski, Grzegorz
Kijowska, Karolina
Witczak, Mariusz
Kuterasiński, Łukasz
Łukasiewicz, Marcin
author_sort Kowalski, Grzegorz
collection PubMed
description The aim of the research was to develop new pectin-based hydrogels with excellent swelling properties. Superabsorbent hydrogels composed of high methylated pectin and partially neutralized poly(acrylic acid) was obtained by free radical polymerization in aqueous solution in the presence of crosslinking agent—N,N’-methylenebisacrylamide. The effect of crosslinker content and pectin to acrylic acid ratio on the swelling properties of hydrogels was investigated. In addition, the thermodynamic characteristic of hydrogels was obtained by DSC. Furthermore, the structure of pectin-based hydrogels was characterized by FTIR and GPC. It was also proved that poly(acrylic acid) is grafted on pectin particles. The results showed that introduction of small amount of pectin (up to 6.7 wt %) to poly(acrylic acid) hydrogel increase the swelling capacity, while further increasing of pectin ratio cause decrease of swelling.
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spelling pubmed-64019082019-04-02 Synthesis and Effect of Structure on Swelling Properties of Hydrogels Based on High Methylated Pectin and Acrylic Polymers Kowalski, Grzegorz Kijowska, Karolina Witczak, Mariusz Kuterasiński, Łukasz Łukasiewicz, Marcin Polymers (Basel) Article The aim of the research was to develop new pectin-based hydrogels with excellent swelling properties. Superabsorbent hydrogels composed of high methylated pectin and partially neutralized poly(acrylic acid) was obtained by free radical polymerization in aqueous solution in the presence of crosslinking agent—N,N’-methylenebisacrylamide. The effect of crosslinker content and pectin to acrylic acid ratio on the swelling properties of hydrogels was investigated. In addition, the thermodynamic characteristic of hydrogels was obtained by DSC. Furthermore, the structure of pectin-based hydrogels was characterized by FTIR and GPC. It was also proved that poly(acrylic acid) is grafted on pectin particles. The results showed that introduction of small amount of pectin (up to 6.7 wt %) to poly(acrylic acid) hydrogel increase the swelling capacity, while further increasing of pectin ratio cause decrease of swelling. MDPI 2019-01-10 /pmc/articles/PMC6401908/ /pubmed/30960098 http://dx.doi.org/10.3390/polym11010114 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kowalski, Grzegorz
Kijowska, Karolina
Witczak, Mariusz
Kuterasiński, Łukasz
Łukasiewicz, Marcin
Synthesis and Effect of Structure on Swelling Properties of Hydrogels Based on High Methylated Pectin and Acrylic Polymers
title Synthesis and Effect of Structure on Swelling Properties of Hydrogels Based on High Methylated Pectin and Acrylic Polymers
title_full Synthesis and Effect of Structure on Swelling Properties of Hydrogels Based on High Methylated Pectin and Acrylic Polymers
title_fullStr Synthesis and Effect of Structure on Swelling Properties of Hydrogels Based on High Methylated Pectin and Acrylic Polymers
title_full_unstemmed Synthesis and Effect of Structure on Swelling Properties of Hydrogels Based on High Methylated Pectin and Acrylic Polymers
title_short Synthesis and Effect of Structure on Swelling Properties of Hydrogels Based on High Methylated Pectin and Acrylic Polymers
title_sort synthesis and effect of structure on swelling properties of hydrogels based on high methylated pectin and acrylic polymers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6401908/
https://www.ncbi.nlm.nih.gov/pubmed/30960098
http://dx.doi.org/10.3390/polym11010114
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