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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/).
Infrared spectra in the 1800–600 cm−1 region of pure LBG, XG and CS, and the products of the crosslinking reaction with β-CD and citric acid at different temperatures (left) and times (right).