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首页> 外文期刊>Journal of industrial and engineering chemistry >Partial oxidation of polyvinyl alcohol using a commercially available DSA anode
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Partial oxidation of polyvinyl alcohol using a commercially available DSA anode

机译：使用市售DSA阳极对聚乙烯醇进行部分氧化

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摘要

The removal of polyvinyl alcohol (PVA) by electrochemical oxidation was investigated systematically under various conditions using a commercial Dimensionally Stable Anodes anode. It was observed that higher electrode potential led to more PVA degradation and gases evolution. Acidic conditions were beneficial for PVA degradation. The higher degradation of PVA was achieved with KBr compared with other salts. The PVA degradation was slightly improved by ultraviolet irradiation while hydrogen peroxide lowered the degradation evidently. FTIR analysis indicated that PVA was partially oxidized rather than completely mineralized. The iso-propanol quenching test indicated hydroxyl radicals were mainly responsible for PVA degradation. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：使用市售尺寸稳定阳极阳极，在各种条件下系统地研究了通过电化学氧化除去聚乙烯醇（PVA）的方法。观察到较高的电极电势导致更多的PVA降解和气体逸出。酸性条件有利于PVA降解。与其他盐相比，KBr可以实现更高的PVA降解率。通过紫外线照射，PVA降解略有改善，而过氧化氢则明显降低了降解。 FTIR分析表明PVA被部分氧化而不是完全矿化。异丙醇淬灭试验表明，羟基自由基是造成PVA降解的主要原因。 （C）2015韩国工业和工程化学学会。由Elsevier B.V.发布。保留所有权利。

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