二烯烃

裂解C5馏分中二烯烃热二聚过程的研究

Study on thermal dimerization of dienes in C_ 5 fraction

路易氏碱及其过渡态能ET在共轭二烯烃的阴离子聚合中的应用。

Application of Lewis Base and its Transition Energy ( E_T ) in anionic polym , of conjugated dienes .

所加的反应物可以是二烯烃、环二烯烃。

The feed reactants can be alkadienes , cycloalkadienes .

溶剂极性的经验参数ET在共轭二烯烃阴离子聚合中的应用

Application of Transition Energy ( E_T ) as Solvent polarity Parameter in Anionic Polymerization of Conjugated Diene

FCC轻汽油非贵金属二烯烃选择加氢催化剂

Non-noble metal diene selective hydrogenation catalyst of FCC light gasoline

与二烯烃橡胶相比，EPDM的双键很少。

Compared with diolefine rubber , EPDM has less double bond .

用热重分析法研究苯乙烯-二烯烃-苯乙烯三嵌段共聚物（SIS，SBS和SI/BS）的热降解动力学及热寿命。

The thermal lifetime and degradation kinetics of styrene-diene-styrene triblock copolymers ( SIS , SBS and SI / BS ) were investigated by thermogravimetry .

叙述了对作为烷基化原料的催化裂化C4馆分及作为生产甲基叔戊基醚（TAME）原料的催化裂化C5馏分进行选择加氢处理，以脱除其中的二烯烃的研究结果。

The laboratory results of the selective hydrogenation of FCC C4 and C5 fractions used for alkylation and TAME ( methyl-1 , 1-dimethylpropyl ether ) feedstocks respectively are presented .

利用热重法研究了聚苯乙烯/聚二烯烃/聚苯乙烯三嵌段共聚物（SIS，SBS，SI/BS）在氮气气氛条件下以不同升温速率β时热降解动力学及其热寿命。

Thermogravimetry was applied to the study of thermal degradation kinetics and thermo-life of the thermoplastic elastomers ( SIS , SBS , SI / BS ) in nitrogen atmosphere under different rates of temperature raising (β) .

当催化剂用量为0.2～0.4mmol/100g聚合物时，反应2h，可达到二烯烃段加氢度大于98%的良好效果。

When the amount of catalyst was between 0.2-0.4 mmol / 100 g polymer , the hydrogenation efficiency can reach 98 % after hydrogenation for 2 hours .

针对以上问题，本文从三方面出发：第一，用异戊二烯（Ip）替代丁二烯（St），两者同属于二烯烃，且随着C5分馏分离技术的广泛应用，Ip的价格相对于丁二烯便宜很多。

The above problems , starting from three aspects of the subject : First , the experimental use of isoprene instead of butadiene . Because both belong to the same Dienes , and with the C5 separation technique widely used fractionation , isoprene is cheaper than the butadiene .

利用紫外光或γ-射线照射PVP水溶液，或用过硫酸盐、肼和过氧化氢或在过氧化物存在下用α、ω-二烯烃处理线型PVP的水溶液均可生成交联PVP水凝胶。

Aqueous PVP is gelled when irradiated with ultraviolet light or gammarays . The crosslinking of linear PVP also achieved by treating the polymers with persulphate , with hydrazine and hydrogen peroxide or with α, ω diolefines in the presence of peroxides .

用封管实验方法考察了二聚反应温度、反应停留时间和不同环戊二烯（CPD）含量对C5馏分热二聚过程中各二烯烃组分反应行为的影响。

Reaction behaviors of C_5 dienes in thermal dimerization were investigated by the seal-tube method . Reaction temperature , residence time and different cyclopentadiene ( CPD ) content in C_5 fraction were taken into account . Results indicated that , CPD conversion would be greater than 92 % ;

轻质馏分脂肪烃主要为环烯烃和二烯烃等烯烃，烷烃中以环烷烃居多；

Aliphatic in light fraction is mainly alkene and cycloalkyl substance .

共轭二烯烃对催化裂化汽油安定性的影响

Effect of Di olefin ers on the Stability of the FCC Gasoline

共轭二烯烃溶液聚合连续搅拌塔式反应器的研究&流动模型

Study on continuous stirred column reactor for dienes solution polymerization & flow model

包含两个双键的化合物叫做二烯烃。

Compounds containing two double bonds are called dienes .

二烯烃对轻汽油醚化过程的影响

Effect of Diene on Etherification of Light FCC Gasoline

共轭二烯烃含量的多少可以用二烯值来表示。

The content of the conjugate dienes can be expressed with the diene number .

通用聚二烯烃橡胶硫化过程中交联网络及分子链构型演变

Evolution of Network Based on General-Purpose Diene Rubbers during Vulcanization and Molecular Chain Configuration

共轭二烯烃在醚化条件下的聚合

Polymerization of Conjugated Dienes under Etherification Conditions

造成这一问题的主要原因，是原料油性质在存储过程中发生变化、二烯烃发生聚合。

It is caused by the property change of feed stock in storage process and alkadiene polymerization .

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 .

苯乙烯与二烯烃嵌段共聚物（SDS）类热塑性弹性体因性能优良而得到迅速发展。

Thermoplastic elastomer of styrene system block copolymer ( SDS ) was developed rapidly for its excellent properties .

综述了在炔烃和二烯烃选择加氢制烯烃过程中的催化剂的应用研究进展。

This paper reviews the development in the application of catalysts to the selective hydrogenation of alkynes and dienes .

当选用非贵金属催化剂时，二烯烃选择性加氢单元应优先采用催化裂化全馏分加氢流程；

When non-noble metal catalysts are selected for selective hydrogenation of diolefin , full-range FCC gasoline hydrogenation process is preferred .

结果表明：汽油中的二烯烃含量影响汽油的洗后实际胶质；

The result shows that the diene content in gasoline will have impact on the actual colloidal matter content in the washed gasoline ;

结果表明，反应温度、空速和醇烯物质的量比对共轭二烯烃聚合反应有较大影响。

It is found that temperature , space velocity , and methanol / inhibiter have major influence on the polymerization of conjugated dienes .

苯乙烯/二烯烃嵌段共聚物通常采用高能耗、物耗的阴离子溶液聚合工艺制备。

The block copolymers of styrene and dienes have been commercialized via living anionic solution polymerization process with high energy and material consumption .

与开链共轭二烯烃作用没能得到环加成产物，却高产率地得到α，α′-二溴代烷基酮自身偶合产物环戊烯酮衍生物。2-取代-环戊烯酮及其衍生物的简易合成

In the case of chain 1,3-dienes , only the coupling product of 1a was obtained . A Facile Synthesis of 2-Substituted Cyclopentenone and Their Derivatives