Insight into divergent chemical modifications of chitosan biopolymer

EM Elnaggar, MS Abusaif, YM Abdel-Baky… - International Journal of …, 2024 - Elsevier
Chitosan is used in many applications due to its biodegradability, biocompatibility,
nontoxicity, nonadhesiveness, and film-forming capabilities. Chitosan has antibacterial and …

Chitosan-modifications and applications: Opportunities galore

VK Mourya, NN Inamdar - Reactive and Functional polymers, 2008 - Elsevier
Of late, the most bountiful natural biopolymer chitin and chitosan have become cynosure of
all party because of an unusual combination of biological activities plus mechanical and …

Chitosan derivatives obtained by chemical modifications for biomedical and environmental applications

NM Alves, JF Mano - International journal of biological macromolecules, 2008 - Elsevier
Chitosan is a natural based polymer, obtained by alkaline deacetylation of chitin, which
presents excellent biological properties such as biodegradability and immunological …

Thermal studies on natural and modified gums

MJ Zohuriaan, F Shokrolahi - Polymer testing, 2004 - Elsevier
Various industrial gums (ie gum arabic, gum tragacanth, gum xanthan, sodium alginate,
chitosan, carboxymethylcellulose, hydroxyethylcellulose, and methylcellulose) were …

Graft copolymerized chitosan—present status and applications

R Jayakumar, M Prabaharan, RL Reis, JF Mano - Carbohydrate Polymers, 2005 - Elsevier
Chitosan is a natural based polymer obtained by alkaline deacetylation of chitin, exhibiting
excellent biological properties such as biodegradation in the human body, and …

Modified chitosan 4. Superabsorbent hydrogels from poly (acrylic acid-co-acrylamide) grafted chitosan with salt-and pH-responsiveness properties

GR Mahdavinia, A Pourjavadi, H Hosseinzadeh… - European Polymer …, 2004 - Elsevier
Graft copolymerization of mixtures of acrylic acid (AA) and acrylamide (AAm) onto chitosan
was carried out by using potassium persulfate (KPS) as a free radical initiator in the …

[HTML][HTML] A new route of production of the meso-porous chitosan with well-organized honeycomb surface microstructure from shrimp waste without destroying the …

MM Rahman, M Maniruzzaman - Results in Engineering, 2023 - Elsevier
The highly active bio-polysaccharide based compound namely chitin and chitosan have
been extracted from shrimp shell which usually expelled out extensively from food …

Characterization of chitosan with different degree of deacetylation and equal viscosity in dissolved and solid state–Insights by various complimentary methods

J Weißpflog, D Vehlow, M Müller, B Kohn… - International Journal of …, 2021 - Elsevier
In recent years, chitosan has attracted considerable interest in many fields due to its
sufficient charge density under biological, non-hazardous conditions. Since chitosan …

Chemical modification of xanthan gum through graft copolymerization: Tailored properties and potential applications in drug delivery and wastewater treatment

B Maji, S Maiti - Carbohydrate Polymers, 2021 - Elsevier
Xanthan gum (XG) possesses numerous hydroxyl groups, which are the focal points for graft
copolymerization of synthetic monomers. A detailed mechanism of graft copolymerization is …

Superabsorbency, pH-sensitivity and swelling kinetics of partially hydrolyzed chitosan-g-poly (acrylamide) hydrogels

A Pourjavadi, GR Mahdavinia - Turkish Journal of Chemistry, 2006 - journals.tubitak.gov.tr
Acrylamide (AAm) monomer was directly grafted onto chitosan using ammonium persulfate
(APS) as an initiator and methylenebisacrylamide (MBA) as a crosslinking agent under an …