MECHANOCHEMISTRY OF LIGNIN .13. GENERATION OF OXYGEN-CONTAINING RADICALS IN THE AQUEOUS-MEDIA OF MECHANICAL PULPING
MECHANOCHEMISTRY OF LIGNIN .13. GENERATION OF OXYGEN-CONTAINING RADICALS IN THE AQUEOUS-MEDIA OF MECHANICAL PULPING
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DOI：
10.1080/02773819508009498
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发表时间：
1995-01-01
影响因子：
2
通讯作者：
TANAKA, H
中科院分区：
文献类型：
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作者：
WU, ZH;SUMIMOTO, M;TANAKA, H
在水和正构烷烃醇作为.OH清除剂的存在下，用陶瓷球磨机或振动球磨机对藜芦基甘油-β-脱氢-醛醚（M）进行机械处理。向化合物（M）的研磨过程中添加1%的每种醇大大降低了产物的产率，例如藜芦醇2、香草醛3、双辛醛4、3，5-二甲氧基-对-苯醌5、3，5-二甲氧基-对-氢醌6等。当邻苯二甲酰肼（P）在水介质中于米尔斯中处理时，三乙酰氧基酞嗪（1A）、3-乙酰氧基邻苯二甲酸（2A）和其它产物与反应混合物的乙酸酯分离。上述结果揭示了在机械处理期间在水性介质中产生. O2 H、.OH和.H。
Mechanical treatments of veratrylglycerol-beta-syring-aldehyde ether (M) were conducted with a ceramic ball mill or a vibration ball mill in the presence of water and n-paraffin alcohols which were used as .OH scavengers. Addition of 1% each of the alcohols to the milling process of Compound (M) greatly decreased the yields of the products, e.g. veratryl alcohol 2, vanillin 3, syringaldehyde 4, 3,5-dimethoxy-p-benzoquinone 5, 3,5-dimethoxy-p-hydroquinone 6 and others. Another addition of n-paraffin alcohols to aqueous media during the millings also significantly reduced the concentration of H2O2 When phthalic hydrazide (P) was treated in the mills in the aqueous media, triacetoxyphthalazine (1A), 3-acetoxyphthalic acid (2A) and other products were separated from the acetates of the reaction mixtures. Results mentioned above disclosed the generation of .O2H, .OH, and .H in the aqueous media during the mechanical treatments.