英汉词典

1.This paper reports the study on the sulfonated polystyrene resin used in esterification, transesterification, synthesis of acetals or ketals, synthesis of ether and rearrangement reaction of pinacol.

本文研究了磺酸化的聚苯乙烯树脂在酯化、酯交换、缩醛或缩酮的合成、醚的合成及(口片)呐重排反应中的应用。

2.The invention relates to garland chrysanthemum extract compounds, and a synthesis method and application thereof. The compounds have enol ether-spiro ketal-acetals and unsaturated side chains.

本发明茼蒿素类化合物及其合成方法与应用，该化合物具有烯醇醚-螺环缩酮-缩醛和不饱和侧链。

3.The IR and NMR spectra of the polymers indicated that the polymer structure contained ester and ketone units in the backbone, and a cyclic acetals as side chain.

通过对该合聚物的IR和NMR谱图分析，得知该聚合物含有酯基和酮基的结构单元，以及环缩醛的侧链。

4.This paper reports the study on the sulfonated polystyrene resin used in esterification, transesterification, synthesis of acetals or ketals, synthesis of ether and rearrangement reaction of pinacol.

本文研究了磺酸化的聚苯乙烯树脂在酯化、酯交换、缩醛或缩酮的合成、醚的合成及(口片)呐重排反应中的应用。

5.Eight acetals (Ketals) were synthesized under the optimal conditions.

在最佳条件下，合成了八个缩醛(酮)化合物。

6.The effect of polyvinyl acetals on its adhesive strength was investigated.

探讨了聚乙烯醇缩醛的粘接强度的影响。

7.This paper investigates the catalysis of D-72 strong acid cation exchange resin on the synthesis of acetals, and systematically discusses the influence of reaction factors on the catalysis reaction.

研究了强酸性阳离子交换树脂对缩醛合成反应的催化作用，系统地探讨了各反应因素对反应的影响，研究发现，D- 72强酸性阳离子交换树脂具有较高的催化活性，并能重复使用。