氯乙烯
- 与 氯乙烯 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The differences of electric mechanism, phase behavior and high temperature stability of cyhalothrin drug-loading microemulsion were investigated when the dodecyl benzenesulfonic salts combined with five coherer counter-ions and polyoxyethylene styrenyl ether were mixed at the same molar ratio.
将十二烷基苯磺酸盐和苯乙烯化苯酚聚氧乙烯醚按摩尔比1∶1混合后,结合5种金属反离子配成增溶高效氯氟氰菊酯的载药微乳体系,研究其在导电机理、相行为及热贮稳定性上的差异。
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The cationic diamide softener can be emulsified by emulsifying agent, and the emulsion of cationic diamide softene can be used as softening agent in Papermaking. The results showed that the emulsion of the cationic diamide softener is stable and homogeneous when the dosage of emulsifying agent cetyltrimethylammonium chloride is 10% in the emulsifying process.
摘 要:以硬脂酸和二乙烯三胺经酰化反应制得二硬脂酰化物,用环氧氯丙烷阳离子化后,再加入乳化剂乳化,可制得带有反应性基团环氧基的新型双酰胺阳离子乳液型纸张柔软剂。
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Results show that PCE was dechlorinated reductively to DCEs and TCE, probable VC and ethene.
结果表明:在微生物的作用下pce还原脱氯为TCE和DCEs,可能有VC和乙烯。
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In 1997. Our company owns a fixed assets of 6 million RMB and a total area of 10,600 square meters. With powerful technical strength, it is the largest production base for r-chloropropyl, ethylene series silane coupler. And it is the member of China Organosilicon Association.
公司现有固定资产600多万元,占地面积10600平方米,科研技术力量雄厚,是全国较大的γ-氯丙基硅烷偶联剂、乙烯基硅烷偶联剂系列产品的生产基地,是中国有机硅协会认证的会员单位。
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China mainly natural gas used in the production of nitrogen, followed by the production of methanol, formaldehyde, acetylene, methylene chloride, carbon tetrachloride, carbon disulfide, nitromethane, hydrocyanic acid and extraction of helium and carbon black. Since the 70s, has built more than natural gas and oil field associated gas as raw materials for large-scale ammonia plant, as well as a number of small and medium-sized ammonia plant, so that the national structure of the synthetic ammonia production of raw materials, natural gas share of about 30%; also be built at the same time A system of acetylene gas plant to manufacture Vinylon and vinyl acetate, acetylene gas used in the production of methanol.
中国天然气主要用于生产氮肥,其次是生产甲醇、甲醛、乙炔、二氯甲烷、四氯化碳、二硫化碳、硝基甲烷、氢氰酸和炭黑以及提取氦气。70年代以来,已兴建多座天然气和油田伴生气为原料的大型合成氨厂,以及一批中、小型合成氨厂,使全国合成氨生产原料结构中,天然气所占的比例约达到30%;同时还兴建了天然气制乙炔工厂,以制造维尼纶和醋酸乙烯酯,乙炔尾气用于生产甲醇。
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It provides a route tothe compounds which contains three functional groups, two carbon-nitrogentriple bonds and one carbon-carbon double bond. In water, metallic indiumpromotes carbon-sulfur bond coupling reaction of aromatic sulfonyl chloride withsuitable organic halides to afford sulfones. In the last chapter, metallic tin mediated allylation of aldimines with allylbromide was revealed.
第三章,我们研究了在水相介质中金属铟促进的烯丙基溴对1,1-二氰基-2-芳基乙烯的Michael加成反应,生成一个含碳碳双键和二个碳氮叁键的三官能团化合物,另外,金属铟在水介质中还可以促进芳基磺酰氯与卤代烃发生碳硫键的偶联,生成砜。
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It is to say that the patch of RAFT agent on the hairy chains.PS particles with the shell of copolymer of styrene and vinylbenzyl chloride were prepared by similar seeded and starved addition processes. RAFT agent with carboxyl end-group attached on the shell surface of PS particles by group reaction. Adding NIPA and photo-initiator into the continuous phase of polymerization system, hairy PNIPA were obtained.
最后,以表面负载一层乙烯基苄氯的亚微米级单分散聚苯乙烯微球为基质,将水溶性RAFT试剂与聚苯乙烯微球表面的官能团反应以负载到其表面,再在连续相中直接引入NIPA和光引发剂,RAFT聚合得到PNIPA毛发。
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The surface hydroxyl group onto magnetic polyvinyl acetate nanoparticles can be obtained by saponification reaction on their surface.
结果表明,磁性聚苯乙烯颗粒与丁二酸酐发生Freidel-Crafts酰基化反应,可以在颗粒表面引入少量羧基;磁性聚甲基丙烯酸甲酯颗粒分别与乙二醇、二缩三乙二醇、聚乙二醇等发生醇-酯交换反应,可以在颗粒表面接枝不同分子链长度的末端羟基;磁性聚醋酸乙烯酯颗粒经过醇解或皂化反应可以获得表面羟基;磁性聚丙烯酸甲酯颗粒通过乙二胺或1,6己二胺的胺解反应可以得到表面氨基,继而与一氯乙酸反应可以引入亚胺二乙酸基团。
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The resin is prepared by swelling chlorine balls in a solvent such as nitrobenzene; adding catalyst to obtain polystyrene-divinylbenzene adsorptive resin; removing reaction mother solution; washing to remove residual solvent and catalyst; swelling; adding pyrane reagent to further react with chloromethyl residual on inner and outer surfaces of the resin to obtain the pyranyl modified adsorptive resin with the composite function.
该树脂的制备方法:将氯球溶胀于硝基苯等溶剂中,加入催化剂,得到聚苯乙烯-二乙烯苯吸附树脂;抽尽反应母液,洗去残留的溶剂和催化剂;溶胀,加入吡喃试剂与树脂内外表面残留氯甲基进一步反应,可制得吡喃基修饰复合功能吸附树脂。
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Synthesis 3,5-dihydroxytoluene by ethyl acetoacetate and diketene as material(yield 6%),by 3-methyl-4-chlorophenol and KOH as material(yield 30-40%)respectively,It was solved for product separation and purify.
分别以乙酰乙酸乙酯与双乙烯酮为原料(收率6%)、3-甲基-4-氯苯酚与氢氧化钾为原料(收率30-40%)合成了3,5-二羟基甲苯,解决了产品分离纯化问题。3-甲基-4-氯苯酚路线进行了中试,中试收率为20%。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。