乙烯基

According to the weight percent, the copolymer composition comprises: 25 percent to 99 percent of the vinyl aromatic monomer; 0 percent to 30 percent of the en-unsaturated nitrile monomer; 1 percent to 50 percent ene dicarboxylic acid derivative monomer.

这种共聚组合物按重量百分比包含：25至99％的乙烯基芳香族单体；0至30％的烯属不饱和腈类单体；1至50％的烯属二元酸衍生物单体。

Canvas is a nice material to use, but any sturdy fabric like oilcloth or vinyl would work as well.

帆布是一个很好的材料使用，但在任何坚固的织物一样， oilcloth或乙烯基会工作。

Thecompound 2-1 can also react with CO and DPPB to give osmium vinyl compound 2-4and 2-5,respectively.

这可以看做是[4+1]环化法在合成金属呋喃方面的应用。2-1与CO以及DPPBPh_2P(CH_2_4PPh_2反应分别得到锇乙烯基化合物2-4和2-5。

PVC is a vinyl letters, it is also a kind of polymer materials, PVC label paper common sub-white color, pearl white.

PVC是乙烯基的英文缩写，它也是一种高分子材料，PVC标签纸常见的颜色有亚白、珍珠白。

Spinodals of polystyrene/poly/poly(2,6 dimethyl 1,4 phenylene oxide) were simulated over a wide temperature range and the calculated resul...

将上述方法用于已知状态方程参数的三元均聚物共混物聚苯乙烯／聚甲基乙烯基醚／聚2，6－二甲基1，4－苯撑氧中，得到一系列不同温度下的spinodal相图，预测结果与文献报导吻合。在此基础上进一步研究了聚合物的分子量对体系相行为的影响。

When A〓 is divinyl sulfone , and BB'〓 is 1-(2-aminoethyl) piperazine, no gelation was observed in water or organic solvents.

当A〓为二乙烯基砜，BB'〓为1-（2-胺乙基）哌嗪时反应在水和有机溶剂中都不会凝胶。

The details of this route as follows:With the piperidine as catalyst, p-hydroxylbenzaldehyde condensed with thiazolidine-...

同时，本文还对反应过程中产生的5-乙基-2-乙烯基毗啶、5-乙基-2-羟乙基吡啶、5-[(4-羟基苯基)甲基]-2，4-噻唑烷二酮、5-4-

Iron catalyst could polymerize butadiene into high vinyl polybutadiene poly(Bd with 1,2-units more than 90%.

铁系催化剂是催化丁二烯聚合生成高乙烯基聚丁二烯的一种较好的催化剂，所生成聚合物1，2-结构的含量可在90%左右。

These chemicals are commonly used to make vinyl plastic, otherwise known as polyvinyl chloride or PVC.

这些化学物质主要的功用是作为乙烯基塑胶中的增塑剂，以作为软化塑胶之用。

This article reviews recent progress in nucleophilic reactions of theα- carbon in vinylidene ruthenium complexes.

综述了近几年钌亚乙烯基络合物中间体α碳的亲核反应。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。