Crystalline structure of cellulose in wood after chemical modification using cyclic acid anhydrides (maleic and succinic)

The chemical modification of wood can be directed to improve various properties, e.g., the dimensional stability, hardness properties, and/or durability properties, against weathering. In this study, a Romanian softwood species Abies alba Mill. was treated and chemically modified using two cyclic ac...

Full description

Saved in:
Bibliographic Details
Published in:Bioresources 2023-05, Vol.18 (2), p.2535-2550
Main Author: Teacă, Carmen-Alice
Format: Article
Language:English
Subjects:
Absorption
acid anhydride
Acidic oxides
Acids
Cellulose
Chemical modification
crystalline part
Dimensional stability
Durability
Fourier transforms
ft-ir spectroscopy
Hydrophobicity
Infrared spectroscopy
Interfacial properties
Lignocellulose
Maleic anhydride
Moisture content
Polymers
Radiation
Softwoods
Spectrum analysis
Substrates
Thin films
Water absorption
wood
Wood products
X-ray diffraction
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The chemical modification of wood can be directed to improve various properties, e.g., the dimensional stability, hardness properties, and/or durability properties, against weathering. In this study, a Romanian softwood species Abies alba Mill. was treated and chemically modified using two cyclic acid anhydrides, i.e., maleic and succinic, to improve its interfacial properties relative to unmodified wood. Structural changes, with focus on the evolution of crystalline part in wood after chemical modification, the water absorption, and the water repellent efficiency, were determined. Maleic anhydride exhibited a lower reactivity towards wood substrate than succinic anhydride, presumably because of their different chemical structure (maleic anhydride is very sensitive to the presence of water). It was found that the percentage of water absorption was diminished, primarily after the succinic anhydride treatment. The chemically modified wood was characterized via Fourier transform-infrared spectroscopy and wide-angle X-ray diffraction methods. The crystalline part from wood structure was evidenced in relation to the employed anhydride in chemical modification approach.
ISSN:1930-2126
1930-2126
DOI:10.15376/biores.18.2.2535-2550