Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/4471
Title: swelling behaviour of the carboxymethylcellulose hydrogels in relation to crosslinking pH and charge density
Authors: Barbucci, Rolando
Magnani, Agnese 
Consumi, Marco 
Keywords: NTERPENETRATING POLYMER NETWORKS; PHASE-TRANSITION; GEL; CHROMATOGRAPHY; CELLULOSE
Issue Date: 2000
Project: None 
Journal: MACROMOLECULES
Abstract: 
Hydrogels of carboxymethylcellulose (CMC) with 2.5%, 25%, 50%, and 100% cross-linking were prepared. Cross-linking and stoichiometry was controlled by appropriate addition of CMPJ and determined by potentiometric titration. The cross-linked polymer was then sulfated using a sulfur trioxidepyridine complex (SO3-Py) in a heterogeneous mixture. Water uptake of the gels was studied in relation to cross-linking, pH, and sulfation. FT-IR spectra of the gels were recorded at different pHs to evidence the hydrogen bonds. Hydrogen bonds formation between the chains may explain the correlation found between water uptake properties and the chemical composition of the gels.
Description: 
35772
URI: http://hdl.handle.net/20.500.12779/4471
ISSN: 0024-9297
DOI: 10.1021/ma0007029
Appears in Collections:Publications

Show full item record

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.