The miscibility of cellulose-polyethylene glycol blends

作者: Yuan-Qiang Guo , Xue-Hai Liang Lclc

DOI: 10.1080/00222349908212442

关键词: Chemical engineeringFourier transform infrared spectroscopyPolymer blendMiscibilityPolymer chemistryDifferential scanning calorimetryCelluloseCrystallinityPolyethylene glycolMaterials sciencePEG 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.

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