查询词典 etherate

The company produces boron trifluoride acetonitrile and family of products based on technology Zhejiang Huangyan chemical synthesis, the plant is the first production of boron trifluoride etherate, one of the manufacturers, with thirty years of history, there is a group engaged in research boron trifluoride and a group of experts with practical experience of staff.

本公司生产三氟化硼乙腈及系列产品的技术主要依托浙江黄岩合成化工厂，该厂是全国最早生产三氟化硼乙醚的厂家之一，具有三十多年的历史，有一批从事研究三氟化硼的专家和一批具有实际操作经验的工作人员。

Boron trifluoride diethyl etherate solution is a middle strong Lewis acid together with good ionic conductivity and good electrocatalytic properties.

摘 要：在过去的20 多年中，导电高分子因具有重要的学术意义和应用价值受到了广泛关注。

It was shown from the results that emulsifier TP-Ⅴ which was prepared by PEG 4000 reacted with TME, in the molar ratio of TME to PEG 2:1, at about 110℃ for 1 h, catalyzed by boron trifluoride diethyl etherate, has a very good emulsifying impact for TME. Particle size distribution of the emulsion was homo-geneous and viscosity of the emulsion was small.

实验结果表明，以M相对适中的PEG4000与TME按物质的量比2： 1、在催化剂三氟化硼乙醚作用下、110℃左右反应1h合成的乳化剂TP-Ⅴ，对萜烯基环氧树脂具有很好的乳化效果，制备的乳液粒子粒径均一度较高，乳液表观黏度较小。

Raman spectra of polythiophene and poly（para-phenylene） films electrochemically deposited on stainless steel electrodes by direct oxidation of thiophene and benzene in boron trifluoride diethyl etherate solution have been investigated by excitations with 633 and 785 nm laser beams, respectively.

聚噻吩和聚苯的薄膜通过在噻吩和苯的三氟化硼乙醚溶液中电化学氧化得到，它们分别使用633 nm和785 nm的激光进行拉曼实验，新制的聚噻吩薄膜的拉曼光谱和薄膜的厚度密切相关，同样的，新制的聚苯薄膜的拉曼光谱和薄膜的厚度密切相关。

High quality poly(9,9-dioctylfluorene) films were synthesized electrochemically by direct oxidation of 9,9-dioctylfluorene in pure boron trifluoride diethyl etherate on stainless steel sheet, with polymer conductivity of 1×10－2 S/cm.

在三氟化硼乙醚中， 9，9-二辛基芴可以直接阳极氧化制备高质量聚(9，9-二辛基芴)膜，其电导率为1×10－2 S/cm。

Using the procedure described in Example 1, boron trifluoride diethyl etherate (1.49 liters, 12.1 moles) was added followed by 1.21 liters (12.1 moles) of borane-dimethyl sulfide at reflux.

用所述的程序例子1 ，硼乙醚（ 1.49升， 12.1痣），然后又说是1.21升（ 12.1痣）的硼-二甲基硫醚在回流。

Nitratomethyl-3-ethyloxetane was synthesized by the process of cyclization, nitation from trimethlolpropane and diethyl carbonate, and the homopolymer of 3-nitratomethyl-3-ethyloxetane was synthesized with 1,4-butanediol as initator and boron trifluoride etherate as an catalyst by cationic ring-opening polymerization.

以三羟-甲基丙烷和碳酸二乙酯为原料经环化、硝化两步反应合成了化合物3-硝酸酯甲基－3-乙基氧丁环；采用1，4-丁二醇为引发剂，三氟化硼乙醚(BF3Et2O)为催化剂，NIMEO发生阳离子开环聚合得到一种端羟硝酸酯均聚醚PNIMEO。

The catalysts such as tetraphenyl tin,aluminium isopropoxide and boron trifluoride etherate complex were used to catalyze the copolymerization.In addition,the copolyester can be given by copolycondensation after monomers were hydrolyzed by phosphoric acid.Boron trifluoride etherate complex was chosen as the catalyst because the catalytic activity was the best among the catalysts.

由于γ-戊内酯为五元环结构，难以进行开环聚合，因此分别考察了四苯基锡、异丙醇铝、三氟化硼乙醚络合物等催化剂，以及以磷酸为催化剂的水解缩聚反应，结果发现三氟化硼乙醚络合物的催化活性最高，因此选择三氟化硼乙醚为本体开环聚合的催化剂。

The results showed that solubility of nitrobenzenamine and etherate increased with temperature increasing.

实验结果表明硝基苯胺和醚化物在二甲苯和甲苯中的溶解度均随温度的升高而增加。

II. Oxidation of α,β-Unsaturated Ketones with Hypervalent Iodine Reagent Literatures reported that lead acetate-borontrifluoride etherate (LTA/BF3-Et2O) can transform α,β-unsaturated ketone to β,γ-unsaturated carboxylic acid ester through an one-step oxidative rearrangement reaction. Our research along this line indicated that hypervalent iodine reagents can also affect the same reaction.

II。 高价碘对α，β-不饱和酮之氧化研究先前已有文献指出用leadacetate-borontrifluoride etherate (LTA/BF3-Et2O)做氧化剂，可以经由一步的重组氧化反应把α，β-不饱和酮(α，β-unsaturated ketones)氧化成β，γ-不饱和碳酸酯(β，γ-unsaturated carboxylic acid esters)衍生物。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。