Isothermal crystallization of sulfonated poly(ethylene terephthalate) ionomer crystal nucleation and growth parameters

• Autorzy: Ostrowska-Gumkowska B. , Ostrowska-Czubenko J.
• Języki publikacji: EN

Abstrakty

EN

Isothermal crystallization of a ionic random copolyster (K-X/SPET) based on poly(ethylcne terephthalate) (PET) was analysed in detail over a compositional range from pure PET to a copolymer containing 10.1 mol % of potassium neutralized sulfonated PET. In measurements differential scanning calorimetry (DSC) was used. A significant influence of the ionic groups on crystal nuclcation and growth was stated. Under isothermal conditions, the nuclcation parameters (width of a critical nuclcus and free energy of forming a critical nucleus) are slightly dependent on the co-unit content. The crystal growth in the ionic copolycsters occurs from the melt by chain folding with trc values comparable to that of the corresponding nonionic homopolymer.

Słowa kluczowe

EN

polyester ionomer; isotermal crystallization; nucleation parameters

PL

jonomerowy poliester; izoteremiczna krystalizacja; parametry zarodkowania

• Wydawca: Centrum Materiałów Polimerowych i Węglowych PAN
• Czasopismo: Polish Journal of Applied Chemistry
• Rocznik: 2009
• Tom: Vol. 53, nr 2
• Strony: 161--167
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Ostrowska-Gumkowska B.

autor

Ostrowska-Czubenko J.

• Nicolaus Copernicus University, Faculty of Chemistry, Gagarin 7, 87-100 Toruri, Poland,

Bibliografia

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• [6] Lauritzen, J. I., Hoffman, J. D., J. Appl. Phys., 1973, 44, 4340.
• [7] Ng, C.-W. A., MacKnight, W. J., Macromolecules, 1996, 29, 2421.