首先，对低沸点起始剂酯醚的合成工艺进行了研究。
First, the preparation process of low boiling point initiator polyetherswas moditied.
对溴苯酚经烷基化、硫酸二甲酯醚化、缩合及水解反应制得阿达帕林，总收率51%。
Adapalene was synthesized from 4-bromophenol by alkylation, etherification, condensation and hydrolysis with an overall yield of 51%.
古细菌的细胞壁缺乏胞壁质，其连接是醚连接而不是酯连接。
Archaean cell walls lack murein, and their lipids have ether links rather than ester links.
根据酯在碱性条件下水解反应生成醚的原理，研究了以甲基硫酸钠废渣为原料制备二甲基硫醚的方法。
Based on the principle of ester hydrolyzation to ether in alkali condition, the process for preparation of dimethyl sulfide from sodium methyl sulfate residue was investigated.
该机制涉及的联系和对醚酯和酰胺键水解酶的攻击组合。
The mechanism involves a combination of hydrolysis of the ester linkages and enzymatic attack on ether and amide bonds.
也用作醚型，酯型表面活性剂的原料。
They are also used as the material of ether and ester surfactant.
油脂部分依次以石油醚、苯、氯仿、乙酸乙酯、丙酮、乙醇为淋洗剂进行洗脱，利用红外光谱、核磁共振光谱法对所分离组分进行了结构鉴定。
The compositions of grease were eluted with petroleum ether, benzene, chloroform, ethyl acetate, acetone, ethanol and characterized by means of IR and NMR spectroscopy.
方法：（1）以硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
通过一元羧酸和二乙烯基醚的反应，我们得到了一种新颖的酯缩醛结构分子玻璃。
A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.
最后，对醇醚磷酸酯的应用开发进行了研究。
At last, the application of alcohol polyether phosphate ester was discussed.
聚缩水甘油醚硝酸酯是近期国外重点研究的高能固体推进剂含能粘合剂之一。
The polyglycidyl ether nitrate is one of the energetic binders for high energy propellants researched emphatically in the latest period abroad .
POY油剂组成以聚醚、聚氧乙烯脂肪酸酯为主，FDY油剂组成以聚醚、合成酯、聚氧乙烯脂肪醇醚为主。
The finishes for POY mainly contained polyether and polyoxyethylene fatty acid ester, and the finishes for FDY mainly contained polyether, synthetic ester and alkylpolyoxyethylene ether.
用丙烯酸蔗糖酯代替价格昂贵的烯丙基蔗糖醚作为交联剂，用过硫酸钾为引发剂，在水溶液中反应制取卡波姆。
Sucrose acrylate is used as a crosslinking agent instead of the expensive sucrose ether, and potassium persulfate is used as a initiator to prepare carbomer in the water solution.
丙酯草醚是该类化合物中已成功开发的一种新型高效油菜田除草剂。
One of these compounds, pyribambenz-propyl was successfully developed as a potent herbicide for rape field.
盆栽试验研究了2,4 - D丁酯、油菜素内酯对大豆的安全性和对氟磺胺草醚除草活性的影响。
By pot trial we studied the influence of 2, 4-d butyl and brassinolide to the safety of soybean and to efficacy of fomesafen.
本文合成了分子中含有硫醚基团和另一个基团如羧酸、酯、酰胺的萃取剂。
In this paper several extractants containing a thioether group and another group such as carboxylic acid, ester or amide were synthesized.
列举了所研制的醇醚型和硼酸酯型汽车制动液的配方和性能。
The formulas and performances of alcohol-ether and borate type of the fluids developed by the authors were enumerated.
不仅如此，二氯苯醚菊酯进行生物递级降解的速度也很快，不会对环境造成任何危害。
Not only that, permethrin biodegrades quickly so that it won't harm the environment in any way.
采用混合溶剂，用电位滴定法测定壬基酚聚氧乙烯醚磷酯酯中单酯、双酯、磷酸的含量。
The content of mono-ester, di-ester and phosphoric acid in phosphate polyoxyethylene nonylphenol were reported with mixed-solvents by potentiometric titration.
它主要由苯甲酰氯和苯酚制备苯甲酸苯酯，然后重排、醚化所得。
It is based on phenol benzoate which is made from benzoyl chloride and phenol through rearrangement and etherification.
合成了以羟基封端的脂肪族聚碳酸酯-聚乙基醚碳酸酯二醇（PEECD），并用于环氧（EP）树脂的增韧。
One kind of hydroxyl - terminated aliphatic polycarbonate, i. e. poly(ethylene ether carbonate) diol(PEECD) was synthesized and used to toughen epoxy resin (EP) .
对广东桑桑椹石油醚和乙酸乙酯提取物中的化学成分进行GC-MS分析。
Volatility chemical constituents of the extracts of mulberry (Moms atropurpurea R. ) by petroleum ether and ethyl acetate were analyzed by GC-MS.
结果青天葵石油醚和醋酸乙酯部位具有一定的体外抗肿瘤作用。
ResultsPetroleum ether extract and ethyl acetate extract both had some anticancer effects in vitro.
用酯肪醇聚氧乙烯醚磷酸酯三乙醇胺盐为单体复配的油剂，其在腈纶中的应用情况与进口日本油剂相当。
The built finish oil using fatty alcohol polyoxyethylene phosphonate tri-ethanolamine salt as monomer had the performance equal to the imported ones from Japan.
报道在二碘化钐作用下，硫代氨基甲酸酯发生还原反应，得到较好产率的二硫醚和酰胺化合物。
This paper reports reductive reaction of the thiocarbamic esters with samarium diiodide to give disulfidesand carboxamides in good results.
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.
将杠柳枝皮粉末的乙醇提取物悬浮于水后，依次用石油醚、乙酸乙酯和正丁醇萃取。
The ethanol extract from the twig bark powder of Periploca sepium was suspended in water and successively treated with petroleum ether, ethyl acetate and n-butanol.
方法对楮头红的石油醚、乙醚、乙酸乙酯、乙醇和热水的粗提取物分别进行体外抗氧化和抑菌试验。
Method the extracts of petroleum ether, ether, ethyl acetate, ethanol and hot water from the whole plant were used to determine the in vitro miti-oxidant and antibacterial activity.
着重讨论了DBP(邻苯二甲酸二丁酯)生产过程中，丁醇分子间脱水生成丁醚的副反应机理及危害，并找出了预防副反应发生的措施。
Discusses the mechanism and harmfulness of undesired formation of butyl ether by inter-molecular dehydration of n-butanol during DBP production. Preventive measures are also provided.
本文介绍了二氯苯醚菊酯、富右旋丙烯菊酯和胺菊酯混剂对家蝇的毒力测定方法 ，复配杀虫剂的原理与方法。
This article describes the experiment of the toxicity testing for the mixture of Permethrin? D trans allethrin, and Tetramethrin on, and explained the theory and method for mixture of drug.
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