共轭双键

模拟结果表明聚合物中苯环、羰基、醛基和共轭双键等化学键及键和链的作用是空间电荷陷阱存在的重要原因。

Simulating result shows that benzene ring , carbonyl group , aldehyde group , conjugated double bond and the function between bond and chain are the important reason for the exist of traps in polymers .

桐油的共轭双键具有极强的反应活性，易与苯酚芳环上邻或对位的活性氢发生傅氏取代反应。

The conjugated double bond in tung oil molecular with high activity can take place substitution reaction with one of ortho or para hydrogens of phenol .

HCl的释放是由于聚合物主链上的消除反应而形成的，颜色的改变是因为在聚合物主链上形成5～30个共轭双键而导致的结果。

The evolution of HCl takes place by elimination from the polymer backbone ; discoloration results from the formation of conjugated polyene sequences of 5 to 30 double bonds .

在导电高分子材料中，具有共轭双键的聚吡咯（PPy），与其它导电高分子相比具有合成简便、易成膜、抗氧化性能良好、电导率较高等优点而日益受到人们的关注。

Compared to other conducting polymer , PPy with conjugated double bonds has gained much attention due to its ease of polymerization , conveniency of making films , good oxidation resistance and high conductivity .

共轭双键结构不同的三种有机染料分子的拉曼光谱研究

Raman Spectroscopy studies of Three Organic Dyes with Different Conjugated - bond Structures

在已经合成的螺旋聚合物中，具有主链共轭双键和功能侧基的取代乙炔类聚合物更是引起了广泛兴趣。

Among the synthetic helical polymers , polyacetylene derivatives with conjugated main chains and functional pendent groups , have gathered much more attention .

玉米黄质分子中含有40个碳和11个共轭双键，使其具有鲜明的颜色和强抗氧化性。

It is a 40 carbon long molecule , with 11 conjugated double bonds , make zeaxanthin has a distinct color and strong antioxidant activity .

（口恶）二唑环的引入，也使共轭双键的电子云密度降低，有效阻止了双键的氧化，有利于器件的稳定性，优化了器件的性能。

Additionally , the 1,3,4-oxadiazole rings can decrease the electron cloud density of double bonds cloud and effectively prevents their oxidization , which stabilizes and optimizes the final devices .

结果表明，溶出木质素的缩聚程度较高，其共轭双键的增加主要发生在蒸煮前期。

The results show that the condensation degree of dissolved lignin is relative higher and the increase of conjugated double bond is mainly proceeded at the early stage of cooking .

同时纤维素基体脱水生成羰基和共轭双键，之后不断芳构化堆叠成为类石墨微晶。

At the same time , the cellulose matrix is dehydrated to produce carbonyl group and conjugated olefinic bond , and then transfers into aromatic rings and graphite-like micro-crystal gradually .

由于分子中有11个共轭双键及2个非共轭双键，因而具有很强的抗氧化能力，在贮存过程中极易发生顺反异构化及氧化破坏，进而丧失生理活性，甚至产生有害成分。

With the 11 conjugated and 2 unconjugated double bonds in its molecular structure , lycopene exhibits strong antioxidant effects . Lycopene itself can be easily oxidized during storage , losing its bioactivity at the same time , and even producing toxic products .

环戊二烯具有共轭双键和亚甲基上的活泼氢原子，性质较为活泼，可进行聚合、氢化、卤化、加成、氧化、缩合及还原等反应；同时它还是稀土金属有机配合物很好的配体。

Cyclopentadiene which has double bonds and active hydrogen atoms of methylene can be used in polymerization , hydrogenation , halogenation , addition , oxidation , condensation and reduction reactions ; and it is also the good ligands of rare earth metal organic complexes .

综合分析MC-DBPs的生成机制，不难发现MC主要经历Adda共轭二烯双键加成反应和部分初级产物的脱水反应。

With a comprehensive analysis of MC-DBP formation mechanism , it was not difficult to find MCs mainly subjected to the the addition reaction of Adda conjugated diene and dehydration reaction of some secondary products .

共轭亚油酸（conjugatedlinoleicacid，CLA）是含有共轭双键的不饱和脂肪酸，有多种几何异构体和位置异构体。

Conjugated linoleic acid ( CLA ) which is unsaturated fatty acid includes conjugated double bonds and has many kinds of geometrical isomers and positional isomers .

共轭亚油酸（CLA）是含有顺式或反式共轭双键的十八碳二烯酸，是必需氨基酸亚油酸（LA）的一组位置和构象异构体的总称。

Conjugated linoleic acid ( CLA ) containing cis-or trans-conjugated double bond is a kind of octadecadienoic acid and is a general term for a set of locations and conformational isomers of the essential amino acids linoleic acid ( LA ) .