丙二醇

The effect of carboxy methyl cellulose, high ester pectin and propy leneglucolalginate were significant, and we experienced the synergic effect of them by positive cross assay.

增稠剂羧甲基纤维素钠、高酯果胶及藻酸丙二醇酯能够显著提高调酸果奶的稳定性，并通过正交试验进行增稠剂的复配。

The effect of carboxy methyl cellulose, high ester pectin and propy leneglucolalginate were significant, and we experienced the synergic effect of them by positive cross assay.

增 稠剂羧甲基纤维素钠、高酯果胶及藻酸丙二醇酯能够显著提高调酸果奶的稳定性，并通过正交试验进行增稠剂的复配。

The compatibility of PTET-60/cellose acetate blends and the pervaporation of their membranes forseparation of EA/water mixtures were investigated.

广角X射线衍射分析发现当丙二醇含量为60wt％时，即PTET-60为非晶态的无定形共聚物。

We succeeded in synthesizing two different segments: C〓-C〓 and C〓-C〓, employing Sharpless dihydroxylation reaction, Julia coupling and samarium diiodide mediated reaction as the key steps.

我们从单保护的1，3-丙二醇出发，以Sharpless不对称双羟化反应，Julia偶联反应以及SmI〓参与的反应为关键步骤，经过艰苦的多条合成路线的尝试与探索，成功的得到了Phorboxazole A B的两个不同的边链部分C〓-C〓和C〓-C〓。

Synthesis of glycidol and epoxidized polyurethane and their characterization;2. Improvement in Hyperbranched Poly glycidol Hydroxyl Groups' Conversion by Protection Method;3. The structure of glycidol was confirmed by IR and 1HNMR.

以一氯代丙二醇为原料，与碱性化合物在低温作用下合成了缩水甘油，并通过IR、1HNMR对其进行了结构表征。

Isobutyraldehyde 1,2-propanediol acetalwas synthesized from isobutyraldehyde and 1,2-propanediol in the presence of aminosulfonic acid as catalyst.

详实地阐述了新型固体超强酸SO2-4/TiO2-MoO3催化剂的制备方法及其应用实例———催化合成异丁醛1，2-丙二醇缩醛新工艺。

The reaction time, the using regenerated catalyst on the yield of Cyclohexanonel, 2-propylene ketal were systematically investigated.

研究了杂多化合物K5CoW12O403H2O作为催化剂对环己酮和1， 2-丙二醇缩酮的催化活性。

Fe2(SO4)3/SiO2 catalyst is excellent in stability and reusability, and yield of cyclohexanone 1, 2-propanediol ketal keeps at 88.90% after being used for 5 times.

Fe2(SO4)3/SiO2催化剂具有良好的德定性，重复使用5次后环己酮1， 2-丙二醇缩酮的收率为88.90%。

Catalytic Synthesis of Cyclohexanone 1, 2-Propylene Ketal by Chitosan Supported with Iodine

篇名 壳聚糖负载单质碘催化合成环己酮1， 2-丙二醇缩酮

So the catalysts for producing methylglyoxal from 1,2-propane glycol were studied in this thesis.

因此本文对丙二醇氧化制备丙酮醛的催化剂进行了研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。