Miscibility of C 60 -end-capped poly(ethylene oxide) with poly(vinyl chloride)

The Evaluation of Miscibility of Poly(vinyl Chloride) and Poly(ethylene Oxide) Blends by DSC, Refractive Index and XRD Analyses

“…The calculated v 12 value for the PVC/PEO blend is -0.12. Neiro et al (2000) and Huang and Goh (2002) also found negative Flory-Huggins interaction parameter, v 12 from the melting point depression results that demonstrate the interaction between polymers. The negative v 12 value in the present study shows that PVC/PEO blends are miscible and thermodynamically stable in the melt (Neiro et al, 2000).…”

“…The T M depression of PEO with the increase of PVC content can be observed from the DSC thermograms. The melting point depression of a polymer in a miscible blend can be used to determine the Flory-Huggins interaction parameter, v 12 (Marentette and Brown, 1998;Huang and Goh, 2002). The Flory-Huggins interaction parameter, v 12 is determined using the Nishi-Wang equation:…”

“…The application of the Nishi-Wang equation assumes that the entropic contributions are practically negligible and that v 12 is independent of the composition of the blend (Huang and Goh, 2002). The calculated v 12 value for the PVC/PEO blend is -0.12.…”

“Hydrothermal wrapping” with poly(4-vinylpyridine) introduces functionality: pH-sensitive core–shell carbon nanomaterials

“…The Cl2p peak appears to be associated with two forms of chloride, at 198.4 and 200.7 eV. These two peaks are not simply a doublet arising from spinorbit coupling as the peak at lower binding energy would be of greater intensity [26,27]. (Figure 2g).…”

Miscibility of Poly(Vinyl Chloride) with Poly(Ethylene Oxide) of Different Molecular Weights

“…7 Miscibility, mechanical, optical, morphological, and thermal properties of PVC/PEO blends have already been studied in the literature. [2][3][4][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] However, data on the miscibility of PVC and PEO are contradictory. Margaritis and Kalfoglou 10 found that PVC and PEO were miscible for PVC-rich blends according to results obtained by dynamic mechanical analysis, differential scanning calorimetry, and optical microscopy.…”