Blends of PEO in Poly(ethylene oxide)/Poly(2-vinylpyridine)-b-poly(ethylene oxide)

摘要

The crystallization behavior of homopolymer Poly(ethylene oxide) PEO and block copolymer Poly(2-vinyl pyridine)-b-poly(ethylene oxide) (P2VP-b-PEO) blends was investigated by differential scanning calorimetry (DSC), polarized optical microscopy (POM), thermogravimetric analysis (TGA) and atomic force microscopy (AFM). Different compositions of two homopolymer/block copolymer blends were studied. The formation of the spherulites was observed for the systems in study by POM. A diminishing of the growing rate of spherulites G (μm/s) for these blends can be observed as the copolymer content increases.