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- pentaerythritol diester 季戊四醇二酯
- Conclution: Diester aconitum alkaloid can be changed to ... 在控制条件下,苯甲酰乌头原碱为主要水解产物。
- The yieldsof pentaerythritol and dipentaerythritol were above 20percent under the optimum reaction parame... 在此工艺条件下,单、双季戊四醇的收率均在20%25以上。
- The paper discusses the preparation of stearic bicine diester for sizing agent and its application in paper-making. 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。
- Novelty intumescent flame retardant(IFR) was made from phosphoric acid,pentaerythritol(PER) and melamine. 使用磷酸、季戊四醇、三聚氰胺合成了一种膨胀型阻燃剂。
- Dibromo neopentyl glycol was prepared from pentaerythritol and hydrobromic acid. 由季戊醇、氢溴酸制备了二溴新戊二醇。
- It has been lots of years that sodium alginate and algin propylene diester is used as stabilizer of beer. 海藻酸钠及藻酸丙二酯作啤酒的稳定剂已有多年。
- BeverageIt has been lots of years that sodium alginate and algin propylene diester is used as stabilizer of beer.4. 3.;饮料 海藻酸钠及藻酸丙二酯作啤酒的稳定剂已有多年。
- The yieldsof pentaerythritol and dipentaerythritol were above 20 percent under the optimum reaction parameters. 在此工艺条件下，单、双季戊四醇的收率均在20%25以上。
- In the production of polyurethane paint,pentaerythritol is em ployed in the place of alkyd resin . 介绍以季戊四醇代甘油制聚氨酯漆醇酸组份的配方、工艺及树脂性能。
- An economical and practical detector in pentaerythritol production, its principle and application are introduced. 介绍季戊四醇生产中比较经济实用的一种检测装置，对其原理和实际应用加以论述。
- Methods: Diester,diimide and dipeptide mimic compounds were synthesized by conjugated the amino groups and acid groups with diols or diacids links. 方法:通过酯化、酰胺反应由不同的二醇或二酸连接加巴喷丁和普瑞巴林合成二酯、酰胺、拟肽类等化合物。
- There were obvious retention on diester and tri-ester of correlation in starch phosphate ester and there was little retention in monoester. 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。
- The easy procedure provided a neat environment-friendly synthetic method for pentaerythritol diacetals in high yields and the catalyst was reusable. 该方法操作简便，收率高，催化剂可重复使用，是一种环境友好型催化反应。
- The present invention discloses one kind of polyene diester compounds in the structure as shown and their preparation process. 本发明公开了一类新的多烯类双酯化合物及其制备方法。
- But the waterproof is in high to low order as: pentaerythritol phosphate> aminated pentaerythritol phosphate> ammonium monoacid phosphate. 耐水阻燃性作用大小为:磷酸季戊四醇缩合物>磷酸季戊四醇缩合物的铵盐>磷酸氢二铵。
- HPGPC method with differential refraction detector for measurement of molecular weight and its distribution of sodium alginic diester was established. 采用示差折光检测器,以高效凝胶色谱法测定藻酸双酯钠分子量及其分布。
- Dibenzalpenlpentaerythritol was directly synthesized from benzaldehyde and pentaerythritol under microwave irradiation with sulfates used as catalyst. 在微波辐射下用硫酸盐催化合成了标题化合物。
- The modification of synthesizing processes of phosphates with P2O5 and testing method of the content of monoester and diester were introduced briefly. 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 ultra-thin intumescent coatings for steel structure were prepared by ammonium dihydrogen phosphate(ADP),pentaerythritol,melamine and acrylic resin. 以磷酸二氢铵、季戊四醇、三聚氰胺及丙烯酸树脂为原料研制了一种超薄膨胀型丙烯酸树脂钢结构防火涂料。
