查询词典 polyacid

The polyesterification reaction of DFA and EG was regarded as research object.The polyesterification reaction process of polyacid and polyalcohol was studied andimproved, and condition of synthesis reaction was determined.

3以二聚脂肪酸与乙二醇酯化反应为研究对象，研究和改进了多元酸和多元醇缩聚反应的工艺，确定了二聚脂肪酸-乙二醇聚酯合成的工艺条件。

This part we introduce complexes synthesized by hydrothermal method containing inorganic polyacid, bipyrindine, organic polyacid, pyridine-carboyxlate, and mixed polyacid and polybase ligands.

我们分类介绍了，水热条件下合成的含无机的同多或杂多酸配体、联吡啶、有机多酸、吡啶羧酸和混合酸碱配体的配位化合物。

This part introduce microporous zeolite compounds , especially the zeolite-like compounds which were developed by Yaghi et al by using thermally stable aromatic polyacid and metal ions as second building unit .

这部分介绍了微孔的类分子筛化合物，特别是 Yaghi 等利用刚性和热稳性本身比较好的芳香多酸和多碱配体和金属离子作为建筑单元发展的的第三代类分子筛，即：金属—有机框架。

Sinochem owns independent IPR for the 20,000-ton/year PTMEG equipment and 180-ton/year polyacid catalyst equipment and fills the gap in technology in China. The commencement of its operation makes Sinochem one of the major manufacturers of PTMEG and THF in China.

2万吨/年PTMEG装置和配套的180吨/年杂多酸催化剂装置，是中化太仓拥有自主知识产权并填补国内技术空白的项目，该项目的投产运营，使中化成为国内最主要PTMEG、THF生产商之一。

The preparation process of self-holing polyimide with organosilicon block includes the following steps: 1 the first reaction of polyacid anhydride in functionality not lower than 2, silicon oil with 2 or more amino or imino groups and polyamine with 2 or more amino groups, and the second reaction with one or several kinds of added isocyanate with 2 or more isocyanate radicals to produce sol of polyamido acid containing organosilicon block; 2 solidifying the sol to obtain solid polyamido acid containing organosilicon block; and 3 imidonating the solid to obtain self-holing polyimide with organosilicon block.

本发明公开了一种有机硅嵌段自发孔聚酰亚胺的制备方法，该方法包括以下步骤：(1)有机溶剂中具有大于或者等于2的酸酐官能团度的多酸酐与具有大于或者等于2的胺基或亚胺基的硅油以及具有大于或者等于2的胺基的多胺反应，随后添加一种或多种具有含有等于或者大于2个异氰酸酯基的异氰酸酯反应，生成含有机硅嵌段聚酰胺酸的溶胶。(2)溶胶固化制成有机硅嵌段聚酰胺酸固体。(3)固体亚胺化，即得有机硅嵌段自发孔聚酰亚胺。

Base Oils for Synthetic ester type lubricants : base oil for flame resistant hydraulic fluid and rolling oil, POE series , Polyacid ester for high temperature performance, ester for metalworking fluids.

合成酯类基础油：难燃液压液用酯，轧制液用酯，各种POE酯，高温加工用多元酸酯，金属加工单双酯3、其它：矿油乳化剂，冷冻压缩机用基础油，低泡清洗剂

The results showed that solid hetero-polyacid salt TiSiW12O40/TiO2 was a good catalyst for synthesizing iso-amyl propionate.

实验结果表明：固体杂多酸盐TiSiW12O40/TiO2对丙酸异戊酯的合成具有良好的催化活性。

Two kinds of hybrid composite resins and two kinds of polyacid-modified composite resins (Dyract AP and F2000)were made into discal restorations, which were divided into 4 groups and each group were then divided into 5 subgroups.

分别以卡波姆和聚乙烯吡咯烷酮作为漂白剂的增稠载体，以11％和15％的CP作为漂白活性成分，配制漂白剂。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。