| 1. | Preparation of dieters multi - ring liquid crystal by method of oxidizing and esterifying 氧化酯化法合成双酯基多环芳香醛类液晶 |
| 2. | Study on the esterifying process and kinetics of polythylene - glycol and methacrylic acid 聚乙二醇与甲基丙烯酸的酯化工艺及动力学研究 |
| 3. | They may be mono , or triacylglycerols according to the number of ? oh groups esterified 根据氢氧根离子酯化的数目为单,双,三酰基的酯。 |
| 4. | Synthesis of esterified and etherfied compound under bisphenol a resin and applocation in positive - printing plates 版材的改性酚醛树脂的合成 |
| 5. | Methods : benzocaine was synthesized from p - nitrobenzoic acid via two steps through esterifying and reduction 方法:以对硝基苯甲酸为起始原料,经酯化,还原两步合成苯佐卡因。 |
| 6. | Using the phosphotungstic acid immobilized on active carbon as catalyst , the iso - amyl gallate was synthesized directly by esterifying isoamyl alcohol and gallic acid 摘要以活性炭固载磷钨酸作为催化剂,用没食子酸与异戊醇直接酯化合成了没食子酸异戊酯。 |
| 7. | Put together the pre - esterified grease and the methanol ; adopt secondary reaction to eliminate the glycerin engendered in the first reaction to continue the ester exchange reaction 经预处理的油脂与甲醇一起,采用二步反应,除去初反应中生成的甘油,使酯交换反应继续进行。 |
| 8. | Isopropylidene glycerol is prepared by condensation of acetone with glycerol , thereafter it was esterified with octanoyl chloride in pyridine as catalyst , and finally the latter was decomposed with boric acid 摘要以甘油和丙酮为原料制得异丙叉甘油,其与辛酰氯在吡啶催化下酯化,再经硼酸作用下分解得到单辛酸甘油酯。 |
| 9. | Under alkaline condition , the descreasing of esterified copolymer viscosity indicate the esterified copolymer is slow releasing . the effect of the complex superplasticizers and the single one is compared in this paper 通过对水泥一水体系的ph值和酯化产物的ph对性能的影响的讨论,确定酯化产物使用时的最佳酸碱度。 |
| 10. | In order to improve the performance of the maleic anhydride - co - acrylamine copolymer water - reducing agent , the copolymer is monoesterified with the polyethylene glycols . the fluidity of the esterified copolymer has been increased 60 % , and it has good retarding performance 通过对不同条件下得到的共聚物的酯化产物的性能的测试得到初始中和度、引发剂用量、反应物浓度、反应温度与酯化产物性能的关系。 |