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建立了一种简易、快速的声化学法测定油样中双烯值的方法。A new method of a simple, quick is set up to determine the Conjugated Diene.

对几种酵母细胞催化双烯和羰基的加氢反应作了一些初步研究。The hydrogenation of diene compound and carbonyl group with yeasts was studied.

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制得的叔碳酸钕具有对二烯烃良好的定向聚合活性。The product has good catalytic property for the formation of diene stereospecific polymers.

而三元乙丙橡胶已在汽车密封条行业中得到广泛的应用。And ethylene propylene diene monomer has been in the automotive sealing industry, widely used.

此外，聚合的二烯大大影响的颜色与实际的胶水。In addition, the polymerization of diene considerably influences on the color and practical glue.

一种丁二烯-丙烯腈共聚物二烯基橡胶，其重要性在于其高耐油性和耐高温性。A butadiene-acrylonitrile copolymer diene rubber, important for its high oil and temperature resistance.

当两者可生成共轭体系时，应具有共轭二烯烃的反应特性。When they both can produce conjugative effect, they have the reaction characteristic of conjugated diene.

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处于溶剂笼中的三重态离子自由基对经电子反传，产生激发三重态二烯。Excited triplet diene is formed via back electron transfer between radical ion pair within a solvent cage.

提高电线电缆用三元乙丙橡胶材料的拉伸强度和伸长率。Improved tensile strength and elongation of ethylene propylene diene monomer compounds used for wire and cable.

进口产品是合成橡胶，主要包括丁腈橡胶及三元乙丙橡胶。Its import product is synthetic rubber, including nitril butadiene rubber and ethylene-propylene-non-conjugated diene rubber.

本发明提供的方法可降低催化裂化汽油的烯烃含量、二烯值和氮含量，并副产低碳烯烃。Its advantages are low content of olefine, diene and nitrogen in gasoline and high output of low-carbon olefine as by-product.

结果表明，二烯值大、酚含量低是加氢渣油催化裂化汽油诱导期短的主要原因。Results show that the main causes of low induction period of cracked naphtha are the high diene number and low phenol content.

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以100重量份的二烯橡胶为基准，芳香乙烯基聚合物的含量优选为5～150重量份。An amount of the aromatic vinyl polymer is preferably 5 to 150 parts by weight based on 100 parts by weight of the diene rubber.

相反，不能进行成环加成反应的反应物有吸电子基团的二烯和二烯烃取代物具有反式结构。By contrast, the exo adduct possesses a trans relationship between the dienophile electron-withdrawing group and the trans diene substituent.

介绍了化学改性EPDM在塑料中的应用以及其与二烯类橡胶共硫化的研究现状，总结了化学改性EPDM的发展方向。The applications of modified EPDM in plastics and covulcanization with diene rubber were presented. Lastly, the development of modified EPDM was summed up.

用傅里叶红外光谱仪，在选定的波数范围内，采用化学计量学法测量乙烯裂解汽油的二烯值。Combined with stoichiometric method, the diene value in cracking gasoline was determined by Fourier Transform Infrared Spectroscopy at selected wavenumber region.

以自制的甲基丙烯酯十六酸和双烯交联剂为单体，采用悬浮聚合方法合成了聚甲基丙烯酸十六酯高吸油性树脂。High oil absorption resin has been prepared from the monomers of self-made n -hexadecyl methacrylate and diene as crosslink agent by suspension polymerization in this paper.

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研究了共轭二烯烃类聚合物在贮氢合金氢化物存在下双键加氢的情况。The hydrogenation of double carbon-carbon bonds in conjugated diene polymers using hydrides of hydrogen storage alloys as hydrogen sources and catalysts has been investigated.

结果表明，催化裂化汽油的诱导期随二烯值的增大而减少，实际胶质随二烯值的增大而增加。Research shows that the inducement period of the FCC gasoline lengthened decreases as the diene number increasing, while the actual gum increases with the increment of diene number.

为研究如何减少上述共轭二烯信息素成分中的几何构型异构化和氧化的发生，作者制备了几种不同剂型的诱芯并进行了田间诱蛾试验。To reduce isomerization and oxidation of above conjugated diene compounds, pheromone baits of different formulations and substrates were made and tested for their trapping efficiency in the field.