The present invention has mild reaction condition, simple operation, easy-to-obtain catalyst, high reaction selectivity and high conversion rate and has high industrial practicability.
本发明具有反应条件温和、操作过程简单、催化剂价廉易得、反应选择性好、反应转化率高等优点，是一种满足工业化需求、实用性很强的方法。
The optimization results indicated that the reaction selectivity increased by over 2%.
优化结果表明，反应选择性可提高2%以上。
Concept, theory and characteristics of supercritical liquid, reaction kinetics and reaction selectivity under supercritical liquid.
介绍了超临界流体的概念、原理和特点，及在超临界下反应动力学和 反应选择性。
The present invention is used in the synthesis of capped polyether to raise the reaction selectivity and polyether capping rate effectively.
本发明用于封端聚醚的合成，能有效提高反应选择性和聚醚封端率。
The method of the invention has the advantages of easily available materials, simple process, easy operation, good reaction selectivity and high yield;
本发明具有原料易得，工艺简单，操作简便，反应选择性好，产物收率高；
RESULTS and CONCLUSION The new approach could significantly shorten the reaction time, improve the reaction selectivity and the yield, and it is also suitable for industrial production.
结果与结论所用方法可缩短反应时间，提高反应的选择性和收率，可用于工业化生产。
RESULTS and CONCLUSION The new approach could significantly shorten the reaction time, improve the reaction selectivity and the yield, and it is also suitable for industrial production.
结果与结论所用方法可缩短反应时间，提高反应的选择性和收率，可用于工业化生产。
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