Repozytorium publikacji - Politechnika Gdańska

The aim of this study was to estimate the structure of new polyurethanes with the potential to be used in medicine. Atactic poly[(R,S)-3-hydroxybutyrate], obtained via a ring-opening polymerization, and polycaprolactonediol or polyoxytetramethylenediol were used to built the soft segments. 4,4'-methylene dicyclohexyl diisocyanate and 1,4-butanediol were the components to form hard segments. Polyurethanes with low-molecular weight were obtained. The observation of FTIR and 1H-NMR spectra suggested that NH groups form two types of hydrogen bonds: with C[DOUBLE BOND]O urethane (possibly with ester group) and ether groups. An addition of poly[(R,S)-3-hydroxybutyrate] caused the slight increase in number of urethane-urethane hydrogen bonds. For some of polyurethanes (based on polyoxytetramethylenediol) the allophanate structures were present.

Autorzy

• Joanna Brzeska link otwiera się w nowej karcie ,
• Piotr Dacko,
• Katarzyna Gębarowska,
• prof. dr hab. inż. Helena Janik link otwiera się w nowej karcie ,
• Bożena Kaczmarczyk,
• Janusz Kasperczyk,
• mgr inż. Marek Kowalczuk link otwiera się w nowej karcie ,
• Maria Rutkowska