Determination of Rate of Crystallinity and Thermodynamical Interaction Parameters of Polycaprolactone with Some Solvents by Gas Chromatography | Zendy

Saraç Ayfer | Zendy; Cankurtaran Özlem | Zendy; Yilmaz Ferdane | Zendy

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Determination of Rate of Crystallinity and Thermodynamical Interaction Parameters of Polycaprolactone with Some Solvents by Gas Chromatography

Author(s) -

Saraç Ayfer,

Cankurtaran Özlem,

Yilmaz Ferdane

Publication year - 2004

Publication title -

macromolecular symposia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.257

H-Index - 76

eISSN - 1521-3900

pISSN - 1022-1360

DOI - 10.1002/masy.200451326

Subject(s) - inverse gas chromatography , polycaprolactone , crystallinity , solvent , flory–huggins solution theory , cyclohexane , cyclopentane , dilution , cyclohexanone , tetrahydrofuran , polymer , gas chromatography , materials science , chromatography , chemistry , thermodynamics , organic chemistry , physics , catalysis , composite material

The retention diagram of polycaprolactone for tert‐butyl acetate was obtained by inverse gas chromatography method in the temperature range of 40‐140 °C. Rate of crystallinity was determined between 45.0 percent and 37.1 percent in the temperatures at 40 and 53 °C, respectively. Thermodynamic interaction parameters were determined for cyclopentane, cyclohexane, tetrahydrofuran and 1,4‐dioxane with polycaprolactone between 70 and 130 °C. Specific retention volumes, V g o , Flory Huggins polymer‐solvent interaction parameters, χ 12 ∞ , equation of state polymer‐solvent interaction parameters, χ 12 * , weight fraction activity coefficients of the solvents at infinite dilution, Ω 1 ∞ , effective exchange energy parameters, X̄ 12 were determined.

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