Optical and sorptive properties of cellulose fiber by infrared spectroscopy methods

Viktoras V. Vaicikauskas; Vitas Svedas; Regimantas Januskevicius

doi:10.1117/12.266813

6 February 1997 Optical and sorptive properties of cellulose fiber by infrared spectroscopy methods

Viktoras V. Vaicikauskas, Vitas Svedas, Regimantas Januskevicius

Proceedings Volume 2968, Optical Organic and Semiconductor Inorganic Materials; (1997) https://doi.org/10.1117/12.266813
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia

Abstract

Optical and sorptive properties of cellulose have been investigated by three methods covering the wide 7000 - 80 cm^-1 spectral range. Attenuated total reflection spectra showed shift of sorbed water bands to shorter wavelengths under paper moisture increase. Surface electromagnetic waves (SEW) propagation at metal - Ge (film) - paper system were investigated firstly in far infrared region. Four slopes in the SEW intensity dependence versus time under paper drying were observed. Near infrared diffuse transmittance revealed a band of bonded to cellulose water at 1.53 micrometers which shows 0.08 micrometer red shift compared to 1.45 micrometer band of free water. Damping constants of cellulose sheets of various thickness were determined in the 140 - 85 cm^-1 range by the surface electromagnetic wave method. Sorptive properties of cellulose are compared to those of other sorbers made of divided silica.

Citation Download Citation

Viktoras V. Vaicikauskas, Vitas Svedas, and Regimantas Januskevicius "Optical and sorptive properties of cellulose fiber by infrared spectroscopy methods", Proc. SPIE 2968, Optical Organic and Semiconductor Inorganic Materials, (6 February 1997); https://doi.org/10.1117/12.266813

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