Supercritically‐Dried Alginate Aerogels Retain the Fibrillar Structure of the Hydrogels
作者： M. Robitzer , L. David , C. Rochas , F. Di Renzo , F. Quignard
关键词: Small-angle X-ray scattering 、 Scanning electron microscope 、 Adsorption 、 Aerogel 、 Self-healing hydrogels 、 Chemical engineering 、 Polyelectrolyte 、 Polymer chemistry 、 Spatial organisation 、 Materials science 、 Supercritical drying
摘要: SAXS patterns of a Ca-alginate hydrogel and the derived alcogel aerogel have been recorded. All correspond to disordered arrays rod-like fibrils. The calculated size fibrils aerogel, 8 nm, is in good agreement with results scanning electron microscopy N 2 adsorption. suggest that ethanol exchange CO supercritical drying do not affect spatial organisation secondary structures gel characterisations can provide information on parent hydrogel.
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