作者: Yuan-Qiang Guo , Xue-Hai Liang Lclc
DOI: 10.1080/00222349908212442
关键词: Chemical engineering 、 Fourier transform infrared spectroscopy 、 Polymer blend 、 Miscibility 、 Polymer chemistry 、 Differential scanning calorimetry 、 Cellulose 、 Crystallinity 、 Polyethylene glycol 、 Materials science 、 PEG ratio
摘要: Blends of cellulose (CELL) with polyethylene glycol (PEG) were prepared from a mixed solution in dimethyl sulfoxide (DMSO)-paraformaldehyde (PF) by coagulation nonsolvent. The state miscibility the blends obtained over composition range 95/5 to 30/70 was characterized wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC). WAXD DSC results indicate that crystallinity phase transition temperature PEG within decreased increasing content CELL. analysis depression shows CELL miscible. investigation Fourier transform infrared (FTIR) spectroscopy demonstrated there strong intermolecular hydrogen bond between these two components, which perhaps intrinsic reason why exhibited high level miscibility.