FT-IR and XRD study on Polyvinyl butyral and Poly (vinylidenefuoride-co-Hexafluoropropylene) blends.

The commercial Polyvinyl butyral (PVB) and Poly (vinylidenefuoride-co-Hexafluoropropylene) (PVDF-HFP-HFP) used in the present investigation were prepared by the solution cast technique. Blend samples of wt% compositions PVB: PVDF-HFP-HFP:: 95:05; 90:10; 85:15 and 80:20 were prepared. The prepared films were characterized by FTIR and XRD techniques for structural and morphological studies. FTIR and XRD analysis confirms the molecular interaction between the two polymers and also the dominating presence of α-phase PVDF-HFP-HFP in blends. Studies also reveal that the crystallinity occurs in blend samples with increase of PVDF-HFP-HFP wt%. Different characterization in present investigation indicates that prepared blends are compatible in selected composition range. [ABSTRACT FROM AUTHOR]