Synthesis and characterization of pectin/SiO 2 hybrid materials
2018
Amorphous hybrid materials with participation of water soluble biopolymer (pectin from apple-AP) and silica derived from tetraethoxy silane (TEOS) were synthesized by sol–gel method. The influence of biopolymer content was determined. The principles of the hybrids formation were developed using structural data from Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Differential thermal analysis (DTA/TG), and 13C-Nuclear magnetic resonance (13C-NMR) analysis. The most probable model of interaction between pectin and silica network in the hybrid materials were proposed. It has been found that the reaction between the organic and the inorganic components was performed by depolymerization of the intermolecular H-bonds. The formation of new H-bonds between silica and pectin was supposed.
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