Synthesis of sterically hindered dicyclohexylmethyl, L menthyl and tert butyl diazoacetate by diazo transfer was described on this paper.
本文介绍了用重氮转移法合成具有较大空间位阻的重氮乙酸二环己基甲酯、L- 薄荷酯和叔丁酯。
Previously, MTBE (methyl tertiary-butyl ether) was the oxygenate of choice, but fell out of favour in 2004 when it was found to contaminate ground water.
以前,MTBE(甲基叔丁基醚)曾作为汽油充氧剂,但是,在2004年,人们发现它污染了地下水,所以就不再使用它了。
Obtained by chlorination of butyl rubber in hexane solution.
由丁基橡胶在己烷溶液中氯化制得。
Sulphur and compounds made from this process: i. e. Latex gloves, neoprene and butyl rubber.
制造过程中产生的硫及其化合物,如:橡胶手套、氯丁橡胶和丁基橡胶。
Through these the rubber may be vulcanized more readily than normal butyl rubber.
这种橡胶通过烯丙基氯可以比一般丁基橡胶更容易硫化。
From the electrolysis efficiency of alcohol, propyl alcohol and butyl alcohol can be said that (1) Voltage grads and original concentration have strong bigger influence on the removal rate.
通过考察乙醇、丙醇和正丁醇的微电解效率可以得出:(1)电压梯度和初始浓度对电解结果都有较大的影响。
OBJECTIVE to investigate the effect of butyl rubber stopper on the stability of procaine hydrochloride injection.
目的研究丁基橡胶塞对普鲁卡因注射液稳定性的影响。
Seal cover over the heat exchanger airtight with butyl adhesive.
用丁基合成橡胶粘合胶将罩盖密封在热交换器上。
The grafting of butyl acrylate (BA) onto gelatin, using ceric ammonium nitrate (CAN) as redox initiator in aqueous medium, has been studied.
在明胶上接枝丙烯酸丁酯是以硝酸铈铵为引发剂在水介质中进行的。
This paper presents our study on the effect of fillers on mechanical damping of chlorinated butyl rubber above its glass transition temperature, Tg.
本文研究了填料对氯化丁基橡胶在玻璃化转变温度以上的温度范围里的力学阻尼行为的影响。
Ethyl tert butyl ether (ETBE) is a good additive for gasoline with high octane number.
乙基叔丁基醚(etbe)是一种性能优良的高辛烷值汽油调和组分。
The market status, demands and applications of butyl rubber are analyzed, the market prospect in domestic is predicted.
对丁基橡胶市场、需求、应用情况进行分析,并对国内的市场前景进行了预测。
These butyl radicals bring about a rapid polymerization of styrene.
这些丁基自由基促使苯乙烯聚合速度加快。
Treatment with butyl lithium gave rise to cyclopropanes .
用丁基锂处理,即得到环丙烷。
In this paper, absorbed dose, dose rate, and pretreatment methods on properties of reclaimed butyl rubber are studied.
本文研究了吸收剂量,剂量率和预处理方法对再生丁基胶物理性能的影响。
The study results of the toxicity of methyl tertiary butyl ether (MTBE) were reviewed.
对国内外有关甲基叔丁基醚(MTBE)毒性的研究结果作了综述。
The side chain of EVA is mainly butyl, amyl, or longer alkyl.
EVA分子结构中的侧链主要是丁基、戊基或更长的烷基。
The paper discussed the effect of test conditions on measurement result of oxidables of butyl rubber bottle stoppers.
讨论试验条件对丁基橡胶抗生素瓶塞易氧化物测定结果的影响。
Previously, MTBE (methyl tertiary - butyl ether) was the oxygenate of choice, but fell out of favour in 2004 when it was found to contaminate ground water.
以前广泛使用的增氧剂是甲基叔丁基醚,后来有研究发现甲基叔丁基醚会污染地下水,因此在2004年久停止使用了。
METHODS Halogenated butyl rubber stopper for injection was researched on different temperatures.
方法对注射液用卤化丁基橡胶塞在不同的温度下进行试验。
Each droplet has an oil core surrounded by a thin layer of butyl cyanoacrylate.
每个微滴都有一颗油核,周围包裹着一层薄薄的氰基丙烯酸正丁酯。
Insulation and cover the material are the butyl homopolymers, improve the soft characteristics and anticorrosive, cable hardy properties.
绝缘和保护层材料采用丁聚物,提高电缆柔软特性和防腐、耐寒特性。
This method is applicable in the field of butyl acetate production.
本方法适用于醋酸丁酯的生产领域。
After all, gum's made from butyl rubber, the same stuff that goes into tires and basketballs.
毕竟,口香糖由丁基橡胶制成,丁基橡胶也是制作轮胎和篮球的材料。
But now the compatibility between butyl rubber closures and drugs has not been solved, and the analysis methods for butyl rubber closures are limited.
但是目前丁基胶塞与药物的相容性问题仍未得到很好的解决,分析丁基胶塞的方法也很有限。
This article introduces the major manufacturers and the major production methods of butyl rubber and halogenated butyl rubber at home and abroad.
本文介绍了丁基橡胶和卤化丁基橡胶国内外主要生产厂家及生产方法。
N-butyl 2- cyanoacrylate (NBCA) is gently deposited proximally to the arterial tear or at the level of the stump of the traumatized artery after superselective microcatheterization.
在超选微导管置入后,向撕裂血管的近端或损伤血管的残端轻缓注入N-羟丁基2-氰基丙烯酸酯(NBCA。
The technical advantages and disadvantages of natural rubber liner, chloroprene rubber liner, precuring butyl rubber liner and room temperature self-vulcanization butyl rubber liner are compared.
对比了天然橡胶衬里、氯丁橡胶衬里、预硫化丁基橡胶衬里、室温自硫化丁基橡胶衬里的技术优缺点。
The technical advantages and disadvantages of natural rubber liner, chloroprene rubber liner, precuring butyl rubber liner and room temperature self-vulcanization butyl rubber liner are compared.
对比了天然橡胶衬里、氯丁橡胶衬里、预硫化丁基橡胶衬里、室温自硫化丁基橡胶衬里的技术优缺点。
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