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公开了一种由二醇生产烯醇的方法。A process for producing an alkenyl alcohol from a diol is disclosed.

二醇扩链剂是影响TPU物理性能的一个重要因素。The diol chain-extension agent is an important factor influencing the physical performance of TPU.

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系统地研究了二元醇含量对共混材料动态力学性能、冲击性能的关系。The effects of diol content on the dynamic mechanical properties and impact strength of the blends were investigated.

邻二醇可以有效地转化为壬酸和相应的二元酸单甲酯。Vicinal diol can be effectively translated into azelaic acid and the corresponding dicarboxylic acid monomethyl ester.

实验采用二异氰酸酯与聚醚二元醇、亲水扩链剂反应合成水性聚氨酯。In the experiment, di-isocyanate, polyether diol and a hydrophilic chain-extender were used to synthesize aqueous urethane.

目的观察西洋参叶二醇组皂苷对大鼠实验性心室重构的保护作用。Objective To investigate the protective effect of Panax Quinquefolium L. Diol saponin on experimental ventricular remodeling in rats.

说明聚酯二醇的端羟基活性对聚酯型水性聚氨酯的力学性能有较大影响。Obviously, the activity of the terminal hydroxyls of polyester diol has much influence upon the mechanical properties of polyester-based WPU.

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其中，以二醚类、二酮类和二醇酯类化合物为内给电子体的催化体系是近年发展起来的新型齐格勒-纳塔催化剂体系。Catalytic systems with diesters , diethers, diketones and diol esters as the internal electronic donors are newly emerging Ziegler-Natta systems.

采用聚氧化丙烯多元醇、二醇扩链剂和多异氰酸酯为原料，用一步法工艺制得一系列高硬度聚氨酯弹性体。A series of high hardness polyurethane elastomers based on polyoxypropylene polyol , diol chain-extender and polyisocyanate were prepared by one-step process.

根据银杏叶内不同有效成分极性不一样和相似相溶原理，选用乙二醇二甲醚这一非极性溶剂提取银杏叶中非极性成分。According to the theory that similarities can be solvable easily in each other, nonpolar ethyl diol dimethyl ether is used to extract nonpolar compounds in ginkgo biloba leaves.

这些结果具有重要意义，因为多环芳烃二醇环氧化物极易与DNA反应，进而导致变异，因此被视为香烟烟雾中所含多种多环芳烃中最重要的致癌物质。These results are significant because PAH diol epoxides react readily with DNA, induce mutations, and are considered to be ultimate carcinogens of multiple PAH in cigarette smoke.

实验表明，在硼酸与新戊二醇的比例不同的情况下，其反应形式不同，有三种不同比例的反应存在。The experiments show that in the new diol boric acid and the proportion of different circumstances, different forms of its response, the proportion of three different reaction there.

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在涂料及粘合剂行业，我们不仅可为您提供国际著名品牌的多元酸、多元醇、聚异丁烯等化工原料，还可为您提供先进的抗静电剂、耐水解剂、耐磨剂、分散剂等助剂产品。In coating and adhesive industry, we supply raw materials like acid, diol and PIB etc. In the meantime, we act as an agent for anti-static, anti-hydrolysis, anti-abrasion and dispersant.