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Some thermodynamic properties of tetrafluoroethene-hexafluoropropene copolymers |
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| Authors: | Giovanni Simeone Piergiorgio Bonardelli Giovanni Moggi Jan C J Bart |
| Abstract: | Copolymers of tetrafluoroethene (TFE) with hexafluoropropene (HFP) have been prepared in the 0-14mol% HFP composition range. Their melting temperatures (Tm), enthalpies (ΔHf) and entropies (ΔSf) of first and second fusion, and crystallinities (X) according to x-ray diffraction(x.r.d.) and differential scanning calorimetry (d.s.c.) have been determined. The results indicate that ΔHf/Xx.r.d of the polymer crystals decreases with higher HFP content. |
| Keywords: | Fluoropolymers tetrafluoroethene-hexafluoropropene copolymers thermodynamic properties crystallinity |