5 results match your criteria: "Romanian Academy P. Poni Institute of Macromolecular Chemistry[Affiliation]"
Thermogravimetric analysis of photodegraded acrylic coated lime wood.
Photochem Photobiol
November 2011
Department of Physical Chemistry of Polymers, Romanian Academy P. Poni Institute of Macromolecular Chemistry, Iasi, Romania.
A series of experiments were carried out to investigate the photodegradation of lime wood (Tilia cordata Mill.) coated with acrylic copolymer during artificial UV/Vis light irradiation for 600 h. Photodegradation of the Paraloid B72 films and Paraloid B72 treated lime wood samples was evaluated by thermogravimetry throughout the irradiation period of 100 h.
View Article and Find Full Text PDFStructural analysis of photodegraded lime wood by means of FT-IR and 2D IR correlation spectroscopy.
Int J Biol Macromol
May 2011
Romanian Academy P. Poni Institute of Macromolecular Chemistry, Department of Physical Chemistry of Polymers, 41A Gr. Ghica Voda Alley, Ro.700487 Iasi, Romania.
Article Synopsis
- - This study investigates how lime wood (Tillia cordata Mill.) changes when exposed to weathering, using techniques like FT-IR and 2D IR correlation spectroscopy to identify these chemical alterations.
- - Lignin, a critical component of the wood, is found to be particularly vulnerable to photodegradation, as indicated by the significant weakening of its characteristic infrared absorption bands.
- - The research shows that changes in carbonyl groups in the wood correlate with lignin breakdown, suggesting that other wood components also contribute to carbonyl formation, revealing complex interactions during weathering.
Characterization of fungal-degraded lime wood by X-ray diffraction and cross-polarization magic-angle-spinning 13C-nuclear magnetic resonance spectroscopy.
Appl Spectrosc
September 2010
Romanian Academy P. Poni Institute of Macromolecular Chemistry, Department of Physical Chemistry of Polymers, 41A Gr. Ghica Voda Alley, Ro.700487, Iasi, Romania.
X-ray diffraction, scanning electron microscopy (SEM), and solid-state cross-polarization magic-angle-spinning (CP/MAS) (13)C-NMR spectroscopy were applied to determine changes over time in the morphology and crystallinity of lime wood (Tilia cordata Miller) generated by the soft-rot fungi. Wood samples were inoculated with Trichoderma viride Pers for various durations up to 84 days. Structural and morphological modifications were assessed by comparing the structural features of decayed lime wood samples with references.
View Article and Find Full Text PDFThermal behavior of biodegraded lime wood.
Carbohydr Res
June 2010
Romanian Academy P. Poni Institute of Macromolecular Chemistry, Department of Physical Chemistry of Polymers, 41A Gr. Ghica Voda Alley, Iasi, Romania.
The effects of the soft-rot fungus Trichoderma viride Pers., on the thermal behavior of lime wood (Tillia cordata Mill.) were investigated.
View Article and Find Full Text PDFSpectral characterization of eucalyptus wood.
Appl Spectrosc
November 2007
Romanian Academy P. Poni Institute of Macromolecular Chemistry, 41A Gr. Ghica Voda Alley, Ro.700487, IASI, Romania.
The main difficulties in wood and pulp analyses arise principally from their numerous components with different chemical structures. Therefore, the basic problem in a specific analytical procedure may be the selective separation of the main carbohydrate-derived components from lignin due to their chemical association and structural coexistence. The processing of the wood determines some structural modification in its components depending on the type of wood and the applied procedure.
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