Chemical Studies on Wood Hemicelluloses. I. On the Hemicellulose of Japanese Beech Wood. I
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چکیده
منابع مشابه
Chemical Modification of Beech Wood: Effect on Thermal Stability
Beech sawdust was reacted with phthalic (PA) and maleic (MA) anhydrides for chemical modification. The influence of reaction time and anhydride amount was investigated. IR spectra gave evidence of wood esterification. Thermogravimetric investigation of chemically modified wood indicated a better thermal stability (mainly for wood treated with phthalic anhydride) in comparison with the untreated...
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PREVIOUS work [O'Dwyer, 1934] has shown that the hemicellulose A of oak wood is a mixed polysaccharide containing anhydroxylose and uronic anhydride units and that the sapwood product differs from that obtained from heartwood in that it gives with iodine the blue colour which is characteristic of starch. It has since been shown [O'Dwyer, 1937] that the blue colour reaction given by the sapwood ...
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INTRODUCTION. THE somewhat arbitrary classification of the wood decays caused by fungi into " brown " and " white " rots has in recent years been the subject of controversy, as it has been suggested that more accurate classification can be based on strictly chemical evidence regarding the effects of the various wood-rotting fungi on wood substance. So far as "brown" rots are concerned a suffici...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1957
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.30.201