1)  Double bond isomerization
双键异构化
2)  double bound isomerization
烯烃双键异构化
1.
Their catalytic activity for 1-hexene double bound isomerization was investigated and their catalytic reaction conditions were optimized for double bound isomerization.
研究了它们在烯烃双键异构化反应中的催化作用,优化了这两种催化剂在1—己烯双键异构化反应中的反应条件。
3)  High Olefin Isomerization
高碳烯烃双键异构化
4)  Double bond
双键
1.
Study on hydrogenation of partial double bond of styrene series thermoplastic elastomer;
苯乙烯类热塑性弹性体部分双键氢化研究
2.
In this paper we have discussed and Compared the π bonds strength and σ bond Strength in carbon-carbon double bond and carbon-carbon triple bond.
本文较详细地讨论比较了碳碳双键与参键中π键的强弱及碳碳单键、双键、叁键中σ键的强
3.
When epoxy group is introduced into the double bonds of the main molecular chain, the molecular polarity is enhanced,while the high elongation character remains essentially.
天然橡胶在乳液状态下与过氧乙酸反应,在主分子链双键中引入环氧基团,可显著提高分子极性,但其高强伸性能基本保持不变;玻璃化温度上升,冲击弹性下降,耐油性、气密性、粘合性显著改善。
5)  vinylic group
双键
1.
An acetoacetylated polyacrylate and a vinylic groups ended polyurethane were synthesized.
乙酰乙酸基聚丙烯酸酯与端烯基聚氨酯交联反应机理唐黎明*郭伟刘德山周其庠(清华大学化工系北京100084)关键词乙酰乙酸基,聚丙烯酸酯,聚氨酯,双键,交联机理1996-08-20收稿,1996-12-05修回近年来,含有乙酰乙酸基团的聚。
6)  C=N double bond
C=N双键
1.
The main focuses are the asymmetric allylation reactions of C=N double bonds through using chiral auxiliary groups, chiral allylation reagents, and asymmetric catalysts.
详细地综述了有关C=N双键立体选择性烯丙基化反应的研究进展。
参考词条
补充资料:双键异构规整度
分子式:
CAS号:

性质:又称双键异构规整度。主链含双键的聚合物中双键取代基顺(反)式含量的百分数。可由红外光谱或核磁共振方法测定。几何规整度对聚合物的性能有很大的影响。如共轭双烯1,4-聚合物的顺式含量高时,为性能优异的橡胶,反式含量高时,成为熔点在室温以下的塑料。聚乙炔、聚苯乙炔等材料的几何规整度对其光、电活性也有影响。

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