- Tytuł:
- Solid State $\text{}^{13}C$ NMR Study of Modified Polyhydroxybutyrate
- Autorzy:
-
Vrábel, P.
Hronský, V.
Fričová, O.
Koval'aková, M.
Chodák, I.
Alexy, P. - Powiązania:
- https://bibliotekanauki.pl/articles/1382700.pdf
- Data publikacji:
- 2014-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
61.41.+e
76.60.-k
81.05.Lg - Opis:
- Structural changes in polyhydroxybutyrate (PHB) brought about by addition of chain extender and/or plasticizer were studied using $\text{}^{13}C$ MAS NMR spectra, which were measured using the direct polarization technique at 30 and 98°C. Four resonances associated with the CO, CH, $CH_{2}$ and $CH_{3}$ groups of PHB were observed in the spectra. The $CH_{3}$ resonance appearing at 98°C shows splitting into two lines related to the crystalline and amorphous regions. Analysis of the $CH_{3}$ resonances made it possible to estimate the influence of applied modifications on crystallinity and distribution of conformations in amorphous and crystalline domains of PHB samples.
- Źródło:
-
Acta Physica Polonica A; 2014, 126, 1; 419-420
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł