1·The method and the condition of separation epoxy ethane from dihydric alcohol are described.
介绍了环氧乙烷与二元醇的分离方法和条件。
2·Ester bond can be formed through the polycondensation of hard segment monomer with uniform segment length containing amide bond and dihydric alcohol, which is a better way to prepare polyesteramide.
先制备具有均一链长的含有酰胺键的硬段单体，然后与二元醇进行缩聚反应生成酯键是制备性能良好的聚酰胺酯的较好途径。