Details

Autor(en) / Beteiligte

• Marlina, D
• Novita, M
• Anwar, M T
• Kusumo, H
• Sato, H

Titel

Raman spectra of polyethylene glycol/cellulose acetate butyrate biopolymer blend

Ist Teil von

• Journal of physics. Conference series, 2021-04, Vol.1869 (1), p.12006

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2021

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Abstract In order to investigate their crystalline structure conformations, several ratio combinations of polyethelene glycol (PEG)/cellulose acetate butyrate (CAB) were studied by Raman spectroscopy. PEG/CAB spectral features due to the composition dependence revealed the gradual transformation from crystalline PEG-like structure to the amorphous CAB-like structure as increasing the ratio of CAB. Bands appeared in the C-H stretching area of 3000– 2700 cm −1 and C-H bending area of 1500–1400 cm −1 clearly exposed the transition of the PEG to the CAB-spectral features with the transition point at about PEG/CAB (30/70). Band at 1737 cm −1 in the C=O stretching area of 1800–1650 cm −1 described the existence of a very weak hydrogen bond arise between PEG and CAB. In the C-O-C area of 1000–800 cm −1 , drastic spectral change suggested that the hydrogen bond interaction takes place in the back bone of PEG.