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Polymer Bulletin

Erschienen in:

01.01.2014 | Original Paper

Synthesis and characterization of citric acid-based pH-sensitive biopolymeric hydrogels

verfasst von: D. S. Franklin, S. Guhanathan

Erschienen in: Polymer Bulletin | Ausgabe 1/2014

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Abstract

Biocompatible hydrogels based on citric acid (CA) with varying glycol unit, viz., ethylene glycol (EG), diethylene glycol and triethylene glycol were prepared along with acrylic acid. The formations of various hydrogels were confirmed using spectral techniques such as FT-IR and ¹H NMR. Thermal stability (thermogravimetric analysis, DTA and differential scanning calorimetry) and morphology (SEM) of the synthesized hydrogels were investigated. Swelling studies of hydrogels at various pH values ranging from 4.0 to 10.0 were also investigated. The results of swelling studies show that the percentage of swelling is comparatively higher at higher pH than lower pH. Swelling equilibrium for various hydrogels was also found. Increased composition of CA in hydrogels at different pH values of 4.0, 6.0, 7.4, 8.0 and 10.0 enhanced the swelling equilibrium.

Vorheriger Artikel Synthesis and characterization of hydrogels from template polymerization of acrylic acid on to modified chitosan

Nächster Artikel Ethyl magnesium bromide as an efficient anionic initiator for controlled polymerization of ε-caprolactone

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Titel: Synthesis and characterization of citric acid-based pH-sensitive biopolymeric hydrogels
verfasst von: D. S. Franklin
S. Guhanathan
Publikationsdatum: 01.01.2014
Verlag: Springer Berlin Heidelberg
Erschienen in: Polymer Bulletin / Ausgabe 1/2014
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI: https://doi.org/10.1007/s00289-013-1047-4

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