Open AccessRaman spectra of polyethylene glycol/cellulose acetate butyrate biopolymer blend
Author(s) -
Dian Marlina,
Mega Novita,
Muchamad Taufiq Anwar,
H Kusumo,
Harumi Sato
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1869/1/012006
Subject(s) - peg ratio , amorphous solid , polyethylene glycol , raman spectroscopy , hydrogen bond , materials science , biopolymer , cellulose acetate , glass transition , cellulose , polymer chemistry , crystallography , chemistry , chemical engineering , polymer , organic chemistry , molecule , composite material , optics , physics , finance , economics , engineering
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.