Synthesis and Effect of Structure on Swelling Properties of Hydrogels Based on High Methylated Pectin and Acrylic Polymers
Grzegorz Kowalski , Karolina Kijowska , Mariusz Witczak , Łukasz Kuterasiński , Marcin Łukasiewicz
AbstractThe 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.
|Journal series||Polymers, ISSN 2073-4360, (N/A 100 pkt)|
|Publication size in sheets||0.75|
|Keywords in English||hydrogels; poly(acrylic acid), pectin; swelling; DSC|
|License||Journal (articles only); author's original; ; after publication|
|Publication indicators||= 3; : 2018 = 1.057; : 2017 = 2.935 (2) - 2017=3.509 (5)|
|Finansowanie||This research was supported by the Ministry of Science and Higher Education, The Republic of Poland|
|Udział procentowy||Grzegorz Kowalski: 55%, Karolina Kijowska: 30%, Mariusz Witczak: 5%, Lukasz Kuterasiński: 5%, Marcin Łukasiewicz: 5%|
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