Porous polylactide prepared by the delocalized crazing as a template for nanocomposite materials

• DOI: 10.1016/j.mencom.2020.03.013
• Publication Date: 2020-05-21T20:46:24Z
• Authors: Elena S. Trofimchuk; Marina A. Moskvina; Olga A. Ivanova; Vladislav V. Pots...; Varvara A. Demina; Nina I. Nikonorova; Artyom V. Bakirov; Nikita G. Sedush; Sergey N. Chvalun
• Keywords: Crazing; Dispersity; Small-angle X-ray scattering; Brushite

Experimental conditions have been established for the preparation of stable open-pore matrices with pore diameters of 10–20 nm on the basis of semicrystalline polylactide films by thedelocalized crazing mechanism. The synthesis of phosphates of calcium (brushite) and magnesium (struvite) in the pores of such a polymer matrix allows one to tune the size of the formed crystallites, which has appeared to be about 30 nm, and to obtain nanocomposites with high dispersity of the components. The resulting nanocomposites were characterized by SAXS, SEM, TGA and XRD methods.