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090 _aB-21716
245 1 0 _aCatalyst-free pH-responsive chitosan-based dynamic covalent framework materials
490 0 _aCarbohydrate Polymers, 301 Part B, p.120332, 2023
500 _aArtículo
520 3 _aThis study reports a first example of chitosan-based dynamic covalent framework materials successfully prepared through one-pot/ultrasonic-assisted amidation reaction via either citric acid (CA) or trimesic acid (TMA) as the linker unit under moderate conditions. Chitosan-based framework materials with residual carboxylic acid functional groups were obtained by tripodal cross-linking reactions without the need of any catalyst. The obtained materials were capable of bond exchange via neighboring group participation (NGP) effect within their dynamic covalent networks. It was demonstrated that the chitosan-based framework materials could undergo a dynamic transamidation reaction to exhibit self-healing characteristics. The structural properties of the synthesized dynamic covalent framework materials were controlled by the type and composition of the tripodal cross-linkers. This study showcased a novel approach to synthesize biodegradable, self-healing, pH-responsive, and selective mixed-dye adsorbent materials using chitosan as the building block.
650 1 4 _aCHITOSAN
650 1 4 _aDYNAMIC COVALENT FRAMEWORK
650 1 4 _aSELF-HEALING
650 1 4 _aTRIPODAL CROSS-LINKERS
650 1 4 _aTRICARBOXYLIC ACID
700 1 2 _aMahaninia, M. H.
700 1 2 _aYan, N.
856 4 0 _uhttps://drive.google.com/file/d/1DYQS4N3X_Q1u9n-tcga-vLtwoejCLEiM/view?usp=drive_link
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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