http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Jaewan Im,Sanghun Lee,Insol Jo,Jeong Won Kang,Jeong Won Kang 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.107 No.-
This study investigated the use of ionic liquids such as 1-butyl-3-methylimidazolium chloride, 4-butyl-4-methyl morpholinium chloride, 1-butyl-1-methylpiperidinium chloride, and 1,3-dimethylimidazoliummethylphosphite to dissolve cellulose, hemicellulose, and lignin biomass, as alternatives to highly toxicorganic solvents. The biomass treated with the ionic liquids is characterized by scanning electron microscopy,X-ray diffraction, thermogravimetric analysis, and Fourier-transform infrared spectroscopy. The Xraydiffraction results revealed that most of the biomass treated with ionic liquids had low crystallinityafter treatment with the ionic liquids. Thermogravimetric analysis confirmed that the pyrolysis temperatureof the biomass treated with the ionic liquid decreased. However, it was found that the pyrolysistemperature of the biomass was increased again after the ionic liquid was washed with an antisolvent. This result was interpreted using Fourier-transform infrared spectroscopy to show that the O–H hydrogenbonding of cellulose was restored. The experimental results from this study can help provide a betterunderstanding of the biomass regeneration mechanism of ionic liquids and increase the applicability ofbiomass in various fields.