an acid containing two replaceable hydrogen atoms per molecule

the effects of finishes on the quality of pa6 tyre cord were studied. polyether with relative molecular weight of 5 000 and aliphatic dibasic acid ester were used as lubricants.

探讨了油剂对锦纶6帘子线质量的影响，确定了平滑剂为相对分子质量50 0 0的聚醚及脂肪酸双酯。

mixed dibasic acid dimethyl ester was synthesized from methanol and mixed dibasic acid, the byproduct of adipic acid, using sodium sulfate monohydrate as catalyst.

采用一水合硫酸氢钠作为催化剂，催化己二酸生产副产物——混合二元酸与甲醇反应合成混合二元酸二甲酯。

the properties of low molecule dimeric dibasic acid polyamide resin were improved by chemical modified in mass polymerization.

用本体聚合的方法，通过化学改性，使低分子二聚酸聚酰胺树脂的性能得到大幅度提高。

the active strong-to-weak sequence of organic dibasic acid on feldspar is oxalic acid, propanedioic acid, succinic acid, hexanedioic acid and sebacic acid.

有机二元酸对长石的活化强弱顺序依次为草酸、丙二酸、丁二酸、己二酸和癸二酸。

the present invention relates to a method for preparing long-chain dibasic acid diester by using long-chain dibasic acid produced by fermentation process.

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。

in the paper, the present situation and prospects of dimeric dibasic acid in the domestic and foreign markets were discussed.

本文概述了近年来国内外二聚酸的现状与市场前景。

the active strong-to-weak sequence of organic dibasic acid on quartz is propanedioic acid, succinic acid, hexanedioic acid, sebacic acid and oxalic acid.

有机二元酸对石英的活化强弱顺序依次为丙二酸、丁二酸、己二酸、癸二酸和草酸。