<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "The effect of blend ratios on physico-mechanical properties and miscibility of cross-linked poly(vinyl alcohol)/urea blends"^^ . "The present study investigates the effect of blend ratios on the miscibility and physico-mechanical properties of polyvinyl alcohol (PVA)/urea (U) blends. PVA/U blends were synthesized in aqueous solution with different blend ratios 65/35, 50/50 and 35/65 respectively, using glacial acetic acid as crosslinking. The properties of PVA/U blends examined included FT-IR, 1 H NMR, 13 C NMR, TGA, DSC and scanning electron microscopy (SEM). The obtained results showed that the miscibility and physico-mechanical properties of PVA/U blends are strongly dependent on PVA ratio in the blends. FT-IR spectroscopy was used to check the hydrogen bonding interaction between PVA and U in the blends. The formation of hydrogen bond was through the lone pair attraction from nitrogen atoms of U towards protonated hydroxyl of PVA. These blends have a single glass transition indicating that these blends are able to form a miscible phase due to the formation of hydrogen bonds. The addition of glacial acetic acid as cross-linking improved the thermal analysis of the blend. The scanning electron microscopy of PVA/U showed crystals of varying sizes with flake shapes compared to the pure PVA. © Published under licence by IOP Publishing Ltd."^^ . "2018" . . "1123" . "1" . . "Institute of Physics Publishing"^^ . . . "Journal of Physics: Conference Series"^^ . . . "17426588" . . . . . . . . . . . . . . . . . . . . . . . . . "E."^^ . "Ganjian"^^ . "E. Ganjian"^^ . . "B."^^ . "Saad"^^ . "B. Saad"^^ . . "E.-S."^^ . "Negim"^^ . "E.-S. Negim"^^ . . "G."^^ . "Yeligbayeva"^^ . "G. Yeligbayeva"^^ . . "M."^^ . "Saleh"^^ . "M. Saleh"^^ . . "L."^^ . "Bekbayeva"^^ . "L. Bekbayeva"^^ . . "H."^^ . "Adam"^^ . "H. Adam"^^ . . . . . "HTML Summary of #9603 \n\nThe effect of blend ratios on physico-mechanical properties and miscibility of cross-linked poly(vinyl alcohol)/urea blends\n\n" . "text/html" . .