脱氢
织物
活性炭
催化作用
化学
化学结构
傅里叶变换红外光谱
有机化学
降级(电信)
碳纤维
原材料
化学工程
高分子化学
材料科学
复合数
复合材料
吸附
工程类
电信
计算机科学
作者
J.M. Valente Nabais,P.J.M. Carrott,M.M.L. Ribeiro Carrott
标识
DOI:10.1016/j.matchemphys.2005.02.031
摘要
The production of activated carbon fibres from commercial acrylic textile fibres was analysed in order to study the chemical transformations suffered by the precursor during the process. The thermal degradation of the precursor polymeric chain starts with the cyclisation of the structure with acetate ion from vinyl acetate acting as a catalyst. The chemical transformations continue with both cyclisation and dehydrogenation reactions which result in the formation of several functional groups. The groups identified for the carbonised fibre by FTIR were amines, amides, imides, lactones and –OH, whereas for the activated carbon fibre the groups that can be identified were pyrones, lactones, amines, amides and OH.
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