The average molecular weight of polyoxytetramethylene glycol could be flexibly controlled by varying the...

未反应的四氢呋喃经适当处理后可以回收循环使用。

This method was compared with that of desulfonation GC and the relative deviation of LAS average molecular weight is less than 0.1%.

所测得的烷基苯磺酸的平均相对分子质量与气相色谱法相比,相对偏差不大于0.1%。