دورية أكاديمية
أعرض في EDS

Formaldehyde and tripolyphosphate crosslinked chitosan hydrogels: Synthesis, characterization and modeling.

التفاصيل البيبلوغرافية
العنوان: Formaldehyde and tripolyphosphate crosslinked chitosan hydrogels: Synthesis, characterization and modeling.
المؤلفون: Medellín-Castillo NA; Centro de Investigación y Estudios de Posgrado, Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, San Luis Potosí, S.L.P. 78290, Mexico. Electronic address: nahum.medellin@uaslp.mx., Isaacs-Páez ED; División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, A.C., San Luis Potosí, S.L.P 78216, Mexico., Rodríguez-Méndez I; Centro de Investigación y Estudios de Posgrado, Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, San Luis Potosí, S.L.P. 78290, Mexico., González-García R; Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, S.L.P. 78260, Mexico., Labrada-Delgado GJ; Laboratorio Nacional de Investigaciones en Nanociencias y Nanotecnologia, Instituto Potosino de Investigación Científica y Tecnológica, A.C., San Luis Potosí, S.L.P. 78216, Mexico., Aragón-Piña A; Instituto de Metalurgía, Universidad Autónoma de San Luis Potosí, San Luis Potosí, S.L.P. 78210, Mexico., García-Arreola ME; Instituto de Geología, Universidad Autónoma de San Luis Potosí, San Luis Potosí, S.L.P. 78290, Mexico.
المصدر: International journal of biological macromolecules [Int J Biol Macromol] 2021 Jul 31; Vol. 183, pp. 2293-2304. Date of Electronic Publication: 2021 Jun 11.
نوع المنشور: Comparative Study; Journal Article
اللغة: English
بيانات الدورية: Publisher: Elsevier Country of Publication: Netherlands NLM ID: 7909578 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-0003 (Electronic) Linking ISSN: 01418130 NLM ISO Abbreviation: Int J Biol Macromol Subsets: MEDLINE
أسماء مطبوعة: Publication: Amsterdam : Elsevier
Original Publication: Guildford, Eng., IPC Science and Technology Press.
مواضيع طبية MeSH: Chitosan/*chemistry , Cross-Linking Reagents/*chemistry , Formaldehyde/*chemistry , Polyphosphates/*chemistry, Hardness ; Hydrogels ; Hydrogen-Ion Concentration ; Hydrophobic and Hydrophilic Interactions ; Surface Properties ; Temperature ; Time Factors
مستخلص: In this work, the synthesis of crosslinked chitosan hydrogels was performed by ionic and covalent interactions using tripolyphosphate (TPP) and formaldehyde (CH 2 O), respectively. The hydrogels synthesis was performed using a D-Optimal combined experiment design with two mixing variables, A and B representing the TPP weight fraction (slack variable) and CH 2 O weight fraction, respectively, and three (3) process variables C-chitosan concentration, D-cross-linker concentration, and E-Contact time. The response variables studied were the point of zero charge (pH PZC ), the swelling ratio (SW), and the equilibrium water content (EWC), which are relevant physicochemical properties in applications such as the pollutant removal from water. According to the ANOVA results, the model obtained was significant; this means it can be adequately used to predicting pH PZC , SW, and EWC from the mixing and process variables, obtaining coefficients of determination R 2 of 0.9572, 0.8900, and 0.8447, respectively. The pH PZC is affected by chitosan concentration, while the crosslinker concentration influences the SW, and the contact time most significantly affected the EWC. Morphology and hardness tests, thermal stability, infrared spectroscopy, and scanning electron microscopy, allowed verifying the types of crosslinking of chitosan with TPP and CH 2 O.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
فهرسة مساهمة: Keywords: Chitosan hydrogels; Crosslinker; Physicochemical crosslinking
المشرفين على المادة: 0 (Cross-Linking Reagents)
0 (Hydrogels)
0 (Polyphosphates)
1HG84L3525 (Formaldehyde)
9012-76-4 (Chitosan)
NU43IAG5BC (triphosphoric acid)
تواريخ الأحداث: Date Created: 20210607 Date Completed: 20210726 Latest Revision: 20210726
رمز التحديث: 20240628
DOI: 10.1016/j.ijbiomac.2021.06.020
PMID: 34097967
قاعدة البيانات: MEDLINE
الوصف
تدمد:1879-0003
DOI:10.1016/j.ijbiomac.2021.06.020