The structure of the organic/inorganic hybrid material was investigated by Fourier transformed infrared, 1 H‐NMR, and 29 Si‐NMR. The elemental mapping analysis of the hybrid using X‐ray photoelectron spectroscopy and EDX also suggest the formation of poly(HEMA‐ co ‐MMA)‐anchored POSS ...
The self-diffusion coefficients for water in a series of copolymers of 2-hydroxyethyl methacrylate, HEMA, and tetrahydrofurfuryl methacrylate, THFMA, swollen with water to their equilibrium states have been studied at 310 K using PFG-NMR. The self-diffusion coefficients calculated from the Stejskal-...
The ES nanofibers were annealed at 100 °C for Characterization 1H NMR spectra were obtained at room temperature by using a Bruker AM 300 (300 MHz) spectrometer and d-dimethyl sulfoxide as a deuterated solvent. The molecular weight and molecular weight distribution of poly(HEMA-co- NMA) were ...
All the as-prepared copolymers were characterized by 1H NMR, FT-IR and GPC. Micellization behaviors of micelles were studied by TEM and DLS. The micelles exhibited a phase transition temperature which can be readily adjusted by changing pH value of the micellization system. Micelle loaded with ...
NMR Relaxation of Water Protons in Hydrophilic Poly(HEMA) HydrogelsYong Sung
The developed hydrogel has been characterized using FTIR spectra, C-13 NMR spectra, elemental analysis, XRD study, SEM analysis, TGA analysis, swelling study and cell viability study. The equilibrium swelling ratio of the hydrogels has been recorded in different media and found to be at a ...
Barbieri R, Quaglia M, Delfini M, Brosio E (1998). Investigation of water dynamic behaviour in poly(HEMA) and poly(HEMA- co-DHPMA) hydrogels by proton T2 relaxation time and self-diffusion coefficient NMR measurements. Polymer 39: 1059-1066....
The structure of the organic/inorganic hybrid material was investigated by Fourier transformed infrared, 1 H-NMR, and 29 Si-NMR. The elemental mapping analysis of the hybrid using X-ray photoelectron spectroscopy and EDX also suggest the formation of poly(HEMA- co -MMA)-anchored POSS ...
Gelification was monitored by diffusion-filtered 1H NMR and solution 1H NMR spectroscopy. Modulated temperature differential scanning calorimetry (MTDSC) suggests the thermo-reversibility of the Diels–Alder coupling reaction of HEMA polymeric networks. Rheological studies showed that the linear ...
It was determined that the hydrogel contained 60% HEMA in the copolymer composition calculated with the help of1H-NMR. Characterization of materials was carried out by SEM, BET, FTIR, UV–Vis, TGA, and XRD techniques. The Ea and Tg value and thermal stability of the pure poly(AAm-co-...