双烯

二苯甲硫酮与共轭双烯化合物的Diels-Alder反应

The Diels-Alder Reactions of Thiobenzophenone to Conjugated Diene Compounds

与Wittig试剂反应，得到双烯（7a）。

Ketoacid ( 5 ) was converted into diene ( 7a ) by the Wittig reaction .

对具有核壳结构的聚（甲基丙烯酸甲酯/苯乙烯/交联剂双烯A）/聚苯乙烯（P（MMA/St/BPADA）/PS）乳液在电解质作用下的破乳规律进行了研究。

The breaking of the P ( MMA / St / BPADA ) / PS core-shell emulsion affected by electrolytes was studied .

镍络硫代双烯型红外染料的合成及其在激光调Q中应用

Syntheses and Application to the Passive Q-Switch for Laser of Nickel Complex IR Dyes

呋喃双烯体系的合成及其分子内Diels-Alder反应的研究

Synthesis and Intramolecular Diels - Alder Reaction of the Furan Diene System

并深入研究了硬脂酸镧对PVC热稳定作用机理，经一系列实验及分析测试表明：硬脂酸镧在PVC降解过程中对共轭双烯结构的形成，不能起到显著的抑制作用；

The mechanism of stabilization of lanthanum stearate is studied by a series of experiments and tests , which can also be well explained by concerted elimination mechanism .

己稀雌酚（DES）和双烯雌酚（DI）是人工合成的雌性激素，它对禽肉类动物具有明显的生长和催肥作用。

Diethylstilbestrol ( DES ) and Dienestrol ( DI ) are synthetic estrogen and as a growth promoter in meat-producing animals and fowl .

结果表明：硬脂酸镧对PVC具有明显的热稳定作用；硬脂酸镧在PVC降解过程中对共轭双烯结构的形成，不能起到显著的抑制作用；

The results showed lanthanum stearate had obvious thermal stabilization effect on PVC , but could not restrain the increase of conjugated double bond effectively during the degradation of PVC ;

共轭双烯与丙烯酸甲酯交替共聚物的~（13）C-NMR谱研究

Studies on the ~ ( 13 ) c-nmr spectra of alternating copolymers of conjugated dienes with methyl acrylate

用~（13）C-NMR方法测定共轭双烯的构型及各异构体相对含量

Determination of the configurations and the relative contents of the conjugated dienes by ~ ( 13 ) c-nmr

这个结论与碳碳共轭双烯的Diels-Alder反应规律是一致的。

This conclusion is in conformity with the rule of Diels-Alder reactions of carbon carbon 's dienes .

Nd（Opr~i）（3-n）Cln-AlEt3催化体系中的n值和双烯竞聚率（γ）间的关系

The relationship between the value of n of nd ( op_r ~ I ) _ ( 3-n ) cl_n-alet_3 catalyst system and the reactivity ratio (γ) of dienes

双烯值、羰基值与温度呈正相关（R2分别为0.9388和0.8416）。

Diene value and carbonyl value were positively correlated with temperature ( R ~ 2 is 0.938 8 and 0.841 6 respectively ) .

双烯类聚合物的热分析&Ⅱ.不同含1,2-含量无规聚丁二烯热（氧化）的研究EPDM受热氧化与动态流变行为

Thermal analysis of poly dienes & ⅱ . a study on thermo-oxidation of the random polybutadienes with different contents of 1,2-units relationships between thermo-oxidation and dynamic rheological behavior of EPDM

大孔吸附树脂A（IA）的骨架主要是由丙烯酸酯和衣康酸双烯丙酯组成，它有好的吸附能力和淋洗性能。

The skeleton of the macroporous adsorption resin A_ ( IA ) is composed of acrylate and diallyl itaconate copolymer . It has good adsorptive power and eluding properties .

Ni-Cu-B非晶态合金催化剂对双烯选择性加氢性能的研究

Catalytic Performance of Ni-Cu-B Amorphous Alloy in Selective Hydrogenation of Diolefins

其中柴胡皂甙结构中的C23－OH，C16－OH以及C11和C13的共轭双烯可能对其抑制活性起重要作用。

The chemical structure C 23 - OH , C 16 - OH and the C 11 , C 13 conjugated double diene of saikosaponins were important for its inhibitory activity .

通过对金华火腿传统加工过程中游离脂肪酸（FFA）、硫代巴比妥酸（TBARS）及双烯值和羰基值等的分析，研究其在加工过程中的脂质分解氧化规律及其与温度条件的相关性。

Lipolysis-oxidation of Jinhua ham and its correlation during traditional processing were studied by analyzing free fatty acids ( FFA ), thiobarbituric acid ( TABRS ), diene value and carbonyl value .

（3Z，6Z）-9S，10R-环氧-二十一碳双烯美洲白蛾性信息素的合成

Synthesis of ( 3Z , 6Z ) 9-S , 10 R-Epoxy-Heneicosadiene & the Sex Pheromone of American White Moth

利用废报纸中的纤维素与含双烯酮的苯-正己烷混合溶液在70℃下反应1.5h，制备含乙酸乙酰基团的螯合树脂。

The cellulose from waste newspaper was used in the preparation of a chelating resin containing acetoacetate groups by reacting cellulose with diketene in a mixed solution of benzene and nI-hexane at 70 ℃ for 1.5 hours .

Diels-Alder反应是1928年德国化学家O.Diels与其助手K.Alder共同发现的，它是一类共轭双烯与含有双键、叁键的亲双烯发生反应生成六元环状化合物的反应。

Content : Diels-Alder Reaction is found by both Germany chemists O. Diels and his assistant , K.Alder , in 1982 . The reaction between diene and dienophile with double bonds or tri-bonds became into the hexahydroxy compounds .

聚芳砜低聚体及其双烯大分子单体的凝胶色谱

Gel Permeation Chromatography of Polysulfone Oligomers and Its Divinyl Macromolecular Monomer

近红外光谱法快速测定加氢物料的双烯含量

Fast Measurement of Alkadiene in Hydrogenation Material by Near Infrared Spectroscopy

双烯丙基联苯醚/双马来酰亚胺共聚物的制备与液晶行为

Preparation and liquid crystalline behaviors of diallyl biphenyl ether / bismaleimide copolymer

新型光学塑料&双烯大分子单体共聚物

A new type of optical plastics copolymer of diene macromolecule

双烯化合物对真丝的接枝反应性与抗皱性

Graft Reactivity and Crease - proofing Property of Bifunctional Vinyl Compound onto Silk

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 .

大孔高交联苯乙烯－双烯－A共聚物的合成及孔结构的研究

Synthesis and the Porous Structure Studies of the Macroporous High Crosslinking styrene-divinyl-A Copolymers

核磁共振法研究松香酸双烯加成物与苯乙烯的聚合作用

Polymerization of the dienophile adducts of rosin acid with styrene as studied by NMR

共轭双烯的合成方法研究

Studies on the Syntheses Method of Conjugated Alkadiene