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Erschienen in: Polymer Bulletin 10/2023

27.11.2022 | ORIGINAL PAPER

Effect of additives on fabrication and properties of hydroxypropyl methylcellulose-based hydrogels

verfasst von: Ha N. Giang, Anh T. K. Le, Tuan N. A. Huynh, Thanh Khoa Phung, Wataru Sakai

Erschienen in: Polymer Bulletin | Ausgabe 10/2023

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Abstract

Hydrogel materials based on bio-degradable polymers have received a lot of interest owing to many potential applications. In this study, hydroxypropyl methylcellulose (HPMC) as a based polymer was cross-linked using 5 wt% of non-toxic citric acid. Polyethylene glycol (PEG) and glycerol were used as gelation accelerants. The effect of reaction temperature on the ability to cross-link the matrix was investigated using differential scanning calorimetry (DSC), thermogravimetric (TGA), and dynamic mechanical analysis (DMA). The cross-linking process could not be observed using DSC or TGA. However, the sample with PEG and glycerol exhibited the highest increase of storage modulus in DMA measurement. A completely gelled state (100% gel fraction) could be obtained in all sample types at the temperature of 140 °C for 10 h. The addition of PEG significantly improved the gel fraction of HPMC-based hydrogel. With a higher concentration of PEG, the increase of C = O groups which were a result of the esterification of citric acid and HPMC molecule was confirmed by Fourier transform infrared spectroscopy (FTIR). The sample with 1 wt% of PEG showed the highest methylene blue adsorption.

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Metadaten
Titel
Effect of additives on fabrication and properties of hydroxypropyl methylcellulose-based hydrogels
verfasst von
Ha N. Giang
Anh T. K. Le
Tuan N. A. Huynh
Thanh Khoa Phung
Wataru Sakai
Publikationsdatum
27.11.2022
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 10/2023
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-022-04610-7

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