利用凝胶色谱、 红外光谱、 紫外光谱研究了乙醇胺循环法对高纯木素分离的影响。
The effects of ethanolamine circulation on separating highly pure lignin were studied by GPC, IR spectrum and UV spectrum.
采用化学改性法，选择多官能团酚醛环氧树脂(F—51)与二乙醇胺进行定量加成反应，合成了一种在分子结构上既具有环氧基团，又具有亲水性基团的改性树脂。
According to the molecule design, a kind of modified resin which have both epoxy groups and hydrophilic groups was synthesized from polyfunctional group novolac epoxy resin (F-51) and diethanolamine.
乙醇胺主要由氨水法与液氨法两种制备方法合成，它们分属于典型的均相催化与多相催化。
The preparation of ethanolamine is mainly composed of aqueous ammonia and liquid ammonia methods, which belong to typical homogeneous catalysis and heterogeneous catalysis respectively.
应用推荐