Chapter 1 Overview
1.1 Introduction
1.2 Characterizing the spatial distribution of aded water in wood
1.2.1 Magnetic resonance imaging technique
1.2.2 Computed tomography scanning technique
1.2.3 Neutron radiography
1.2.4 Vibrational spectroscopic imaging technique
1.3 Determining molecular interactionetween aded water and wood
1.3.1 Near-infrared spectroscopy
1.3.2 Nuclear magnetic resonance technique
1.3.3 Fourier transform infrared spectroscopy
1.3.4 Raman spectroscopy
1.4 Future direction
Reference
Chapter 2 Quantitative detection of moisture content in heat-treated wood cell walls using miero-FTIR spectroscopy
2.1 Introduction
2.2 Materials and method
2.2.1 Materialr
2.2.2 Micro-FTIR spectrometer
2.2.3 DVS apparatu
2.2.4 Micro-FTIR data processing
2.3 Results and discussion
2.3.1 Qualitatively analyzing moisture sorption
2.3.2 Quantitative analysis of moisture sorption
2.4 Conclusion
Reference
Chapter 3 Quantitative analysis of moisture sorption in lignin using miero-FTIR spectroscopy
3.1 Introduction
3.2 Materials and method
3.2.1 Material
3.2.2 Experimental apparatus for micro-FTIR spectral measurement
3.2.3 Experimental apparatus for moisture content measurement
3.2.4 Micro-FTIR spectral data processing
3.3 Results and discussion
3.3.1 Quantitative analysis of moisture adsorption in lignin
3.3.2 Quantitative evaluation of moisture adsorption in lignin
3.4 Conclusion
Reference
Chapter 4 Quantitatively characterizing moisture sorption of cellulose using micro-FTIR spectroscopy
4.1 Introduction
4.2 Experiment section
4.2.1 Sample preparation
4.2.2 Micro-FTIR spectroscopy apparatu
4.2.3 DVS apparatu
4.2.4 Spectral data processing
4.3 Results and discussion
4.3.1 Qualitatively analyzing water adsorption of cellulose nanofiber film
4.3.2 Quantitative analysis of water adsorption in cellulose nanofiber film
4.4 Conclusion
Reference
Chapter 5 Quantitative evaluation of moisture sorption in TEMPO oxidized cellulose using micro-FTIR spectroscopy
5.1 Introduction
5.2 Materials and method
5.2.1 Material
5.2.2 Experimental apparatus for micro-FTIR spectroscopy measurement
5.2.3 Determination of moisture content using DVS apparatu
5.2.4 Data processing of micro-FTIR spectra
5.3 Results and discussion
5.3.1 Quantitative analysis of moisture adsorption in TOCNF
5.3.2 Quantitatively evaluating water adsorption of TOCNF
5.4 Conclusion
Reference
Chapter 6 Molecular association of water with wood cell walls during moisture desorption process examined by micro-FTIR spectroscopy
6.1 Introduction
6.2 Materials and method
6.2.1 Material
6.2.2 Experimental instrument for micro-FTIR spectral measurement
6.2.3 Micro-FTIR spectral data processing
6.3 Results and discussion
6.3.1 Effective water sorption sites of wood
6.3.2 Molecular structure change of water during moisture desorption proce
6.4 Conclusion
Reference
Chapter 7 Molecular association of water with heat-treated wood cell walls during moisture adsorption process examined by micro-FTIR spectroscopy
7.1 Introduction
7.2 Experimental section
7.2.1 Sample preparation
7.2.2 Micro-FTIR spectroscopy equipment
7.2.3 Data processing
7.3 Results and discussion
7.3.1 FTIR spectra of the heat-treated wood associated with water molecule
7.3.2 The analysis of difference spectra
7.3.3 Intermolecular interactionetween aded water and the heat-treated wood
7.4 Conclusion
Reference
Chapter 8 Molecular association of aded water with heat-treated wood cell walls during moisture desorption process examined by micro-FTIR spectroscopy
8.1 Introduction
8.2 Materials and method
8.2.1 Material
8.2.2 Experimental instrument for spectral measurement
8.2.3 Micro-FTIR spectral data processing
8.3 Results and discussion
8.3.1 Effective water sorption sites of heat-treated wood
8.3.2 Molecular structure change of water
8.4 Conclusion
Reference
Chapter 9 Molecular association of aded water with cellulose during moisture adsorption process examined by micro-FTIR spectroscopy
9.1 Introduction
9.2 Materials and method
9.2.1 Material
9.2.2 Micro-FTIR spectroscopy setup
9.2.3 Data processing
9.3 Results and discussion
9.3.1 Micro-FTIR spectra of cellulose nanofiber film
9.3.2 Difference spectra of cellulose nanofiber film at various RH level
9.3.3 Different types of water aded by cellulose nanofiber film
9.4 Conclusion
Reference
Chapter 10 Spatial distribution of aded water in cellulose film studied using micro-FTIR spectroscopy
10.1 Introduction
10.2 Materials and method
10.2.1 Material
10.2.2 Micro-FTIR experimental setup
10.3 Results and discussion
10.3.1 Qualitatively analyzing water adsorption in cellulose nanofiber film
10.3.2 Spatial distribution of cellulose in the cellulose nanofiber film
10.3.3 Spatial distribution of aded water in the cellulose nanofiber
10.4 Conclusion
Reference
Chapter 11 Water vapor sorption properties of sulfuric acid treated and TEMPO oxidized cellulose nanofiber film
11.1 Introduction
11.2 Material and method
11.2.1 Material
11.2.2 DVS apparatu
11.2.3 X-ray diffraction (XRD)
11.2.4 Modulus measurement
11.3 Results and discussion
11.3.1 Water vapor sorption behavior
11.3.2 Sorption hysteresis
11.3.3 Sorption kinetic
11.3.4 The applicability of the Kelvin-Voigt model
11.4 Conclusion
Reference
Chapter 12 Water vapor sorption properties of cellulose nanocrystals and nanofibers using dynamic vapor sorption apparatu
12.1 Introduction
12.2 Material and method
12.2.1 Material
12.2.2 DVS setup
12.3 Results and discussion
12.3.1 Water vapor sorption behavior
12.3.2 Sorption hysteresis
12.3.3 Sorption kinetic
12.3.4 The applicability of Kelvin-Voigt model
12.4 Conclusion
Reference