AI Article Synopsis
- The study focuses on synthesizing a novel type of chitosan-based graft copolymer (CECTS-g-PDMA) by grafting a specific monomer (DMA) onto N-carboxyethylchitosan using an ammonium persulfate initiator in an aqueous solution.
- Various polymerization factors such as initiator and monomer concentrations, reaction time, and temperature were analyzed to determine their impact on the grafting efficiency.
- Characterization techniques like XRD, FTIR, DSC, and TGA were employed, along with surface-tension and temperature-variable NMR analyses, to evaluate the physical and thermal properties of the resulting copolymers in solution.
Article Abstract
Novel chitosan-based graft copolymers (CECTS-g-PDMA) were synthesized through homogeneous graft copolymerization of (N,N-dimethylamino)ethyl methacrylate (DMA) onto N-carboxyethylchitosan (CECTS) in aqueous solution by using ammonium persulfate (APS) as the initiator. The effect of polymerization variables, including initiator concentration, monomer concentration, reaction time and temperature, on grafting percentage was studied. XRD, FTIR, DSC and TGA were used to characterize the graft copolymers. Surface-tension measurements, turbidity measurements and temperature-variable (1)H NMR analysis were combined to investigate the thermal sensitivity of CECTS-g-PDMAs in aqueous solution.
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| http://dx.doi.org/10.1016/j.carres.2006.08.001 | DOI Listing |
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