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- butadiene cyclization 丁二烯环化
- Cyclization occurs readily with dilute alkali. 遇到稀碱就容易环化。
- Emulsion polymerized styrene butadiene rubber. 丁二烯、苯乙烯在乳液体系中进行共聚制得的橡胶。
- Butadiene vinyl pyridine rubber latex. 丁二烯、乙烯基吡啶经乳液共聚制得的胶乳。
- Nitrile is a copolymer of butadiene and acrylonitrile. 腈是一种丁二烯与丙烯腈的共聚物。
- Butane is converted to butadiene for synthetic rubber. 丁烷则转换成丁二烯，用来制造人造橡胶。
- The suggestions to produce butadiene at domestic were given. 对国内丁二烯生产提出了建议。
- Synthetic rubber (SBR) is a copolymer of butadiene (75%) and styrene (25%). 合成橡胶（SBR）是丁二烯（75%25）和苯乙烯（25%25）的共聚物。
- A synthetic rubber made from the polymerization of butadiene and sodium. 布纳橡胶由丁二稀和钠聚合而成的合成橡胶
- The elastomeric component is usually polybutadiene or a butadiene copolymer. 这个弹性体一般是聚丁二烯或者丁二烯共聚物。
- Charge-separated resonance structures do not contribute very much to the resonance hybrid of butadiene. 电荷分离的共振结构对丁二烯没有很大的贡献。
- Butadiene Dimer and Styrene in Butadiene Concentrates by Gas Chromatography, Method of Test for (05. 用气相色谱法测定丁二烯浓缩物中丁二烯二聚物和苯乙烯的试验方法(05。
- Butadiene Purity and Hydrocarbon Impurities by Gas Chromatography, Method of Test for (05. 用气相色谱法测定丁二烯纯度和烃类杂质的试验方法(05。
- Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%. 以苯甲酰氯为原料;经酰化;还原;环合等反应合成左旋西替利嗪盐酸盐;反应总收率为8.;05%25。
- Carboxylated Nitrile( XNBR) is a terpolymer of acrylonitrile, butadiene and an organic acid monomer. 羧化丁腈橡胶是由含羧基单体和丁二烯、丙稀腈三元共聚制得得。
- The coke formation on butadiene catalyst was studied in a flow system by means of carbon-14-labelled compounds. 在流动系统中;用碳-14标记化合物研究了丁二烯催化剂上的结焦过程.
- Sealing Material: O-shape or U-shape seal ring; butadiene acrylonitrile rubber, fluorine rubber. 密封材料：O形或U形密封圈；丁晴橡胶、氟橡胶。
- The structure of the certified reference material(CRM) of butadiene nitrile rubber (BNR) was characterized by 1H _ NMR. 应用1H－NMR技术对系列丁腈橡胶（BNR）标准物质的结构进行了表征。
- Study progress on cyclization of citronellal to(-)-isopulegol over catalysts is reviewed. 综述催化香茅醛环化为(-)-异胡薄荷醇的催化剂研究进展.
- The leakage and treatment of solvent desorber in a butadiene unit of organic synthesis plant are introduced. 摘要介绍了某石化公司乙腈法抽提丁二烯装置的一次溶剂解吸塔泄漏情况和处理过程。
