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一种制备2，3，5-三甲基氢醌二酯的方法。Method for preparing 2,3,5-trimethyl hydroquinone diester.
反应产物经薄层色谱鉴定为单酯和双酯。The products were identified TLC as monoester and diester.
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论述了双硬脂酰取代甘氨酸酯施胶剂的制备及其在造纸中的应用…The paper discusses the preparation of stearic bicine diester for sizing agent and its application in paper-making.
最后，本文采用拉环法对1，4-丁二醇双琥珀酸十八醇双酯磺酸钠进行了表面活性测定。Finally, the surface activity of sodium 1,4-butanediol bisulfosuccinate diester was measured by ring detachment method.
本发明涉及一种用于制备油包水粗乳液的琥珀酸二酯聚合物。The present invention relates to a succinic diester polymer which is used in the preparation of water-in-oil macroemulsions.
淀粉磷酸酯中有交联性的二酯和三酯有较明显的留着作用，而对单酯的留着作用不十分明显。There were obvious retention on diester and tri-ester of correlation in starch phosphate ester and there was little retention in monoester.
简要介绍了使用五氧化二磷作为磷酸化试剂合成磷酸酯的工艺过程改进，以及磷酸单双酯含量检测的常用方法。The modification of synthesizing processes of phosphates with P2O5 and testing method of the content of monoester and diester were introduced briefly.
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本发明涉及一种长链二元酸双酯的制备方法，尤其是一种用发酵法生产的长链二元酸制备长链二元酸双酯的方法。The present invention relates to a method for preparing long-chain dibasic acid diester by using long-chain dibasic acid produced by fermentation process.
一种碳酸二酯的合成方法，通过一氧化碳和亚硝酸酯在催化剂存在下，用较低的压力和较低的温度偶联合成碳酸二酯。Carbon monoxide and nitrous acid ester are synthesized through coupling reaction into diester carbonate in the presence of catalyst and at relatively low pressure and temperature.
PSS是以海藻酸为原料研制的一种褐藻多糖双酯钠，具有抗凝血、降血脂和降低血液粘度的作用。PSS is one kind of sodium amylase diester sodium that takes sodium alginate as raw material, which has the characteristic of anti-cruor, reducing the viscidity of blood fat and blood.
以壬基酚聚氧乙烯醚为原料，与顺酐酯化再与亚硫酸氢钠磺化，合成了壬基酚聚氧乙烯醚琥珀酸双酯磺酸钠。Nonylphenol polyoxyethylene ether was esterified with maleic anhydride and then sulfonated with sodium bisulfite to form nonylphenol polyoxyethylene ether sulfosuccinic acid diester sodium salt.