查询词典 vinylene

The second part is to study the synthesis of poly(2,3-diphenyl-1,4-phenylene vinylene)s containing triphenylene liquid crystal side groups and their application in polarized emission.

第二部份为合成DP-PPV侧链接上三苯基液晶基高分子并探讨其高分子偏极化上之应用。

Polyphenylene vinylene is an important kind of electroluminescent polymers. It has many advantages over others, such as high luminescence, good stability in air and fine mechanical strength, but it remains the poor processability and gives off blue-light with much difficulty.

聚苯撑乙烯材料具有发光亮度高、在空气中稳定性好和力学强度高等优点，但也存在加工性差和其器件不易发射蓝光等问题。

The invention relates to a preparation method of vinylene carbonate, which comprises halogenated ethylene carbonate and dehydrohalogenation agent which are subject to contact reaction. The dehydrohalogenation agent is ammonia with a purity of not less than 99.9 percent.

一种碳酸亚乙烯酯的制备方法，该方法包括将一卤代碳酸乙烯酯与脱卤化氢剂进行接触反应，其中，所述脱卤化氢剂为纯度不低于99.9％的氨气。

Spirobifluorenylene, ethynylene, and vinylene groups as the bridge are introduced to connect both truxene moieties to understand the effect of the large steric chromophores on the properties of the desired materials.

9，9'- Spirobifluorenylene，炔桥，和乙炔团体的桥梁，介绍了连接两个truxene基团，以了解生色团的大型立体效应对所需材料的性能。

By using the 532 nm TEM00 laser beam,the laser-induced diffractive and optical limiting properties of the(2-methoxy-5-butoxy)Poly-phenylene vinylene derivative/chloroform Solution are studied.

用532 nm基模高斯光束对2-甲氧基5-丁氧基取代聚对苯撑乙烯的氯仿溶液进行激光诱导衍射实验及光限幅特性的研究。

The first part of this study is focused on the synthesis and electro-optical properties and of poly(2,3-diphenyl-1,4-phenylene vinylene) containing polyethylene oxide side chains. The formation meso-structure nanocomposites by sol-gel process with tetraethyl ortho-silicate was demonstrated .

第一部份为聚-(2，3-双苯基-1，4-仲苯基乙烯)侧链接上聚环氧乙烷之合成、光电性质研究及透过溶胶-凝胶制程研究其自组装之奈米复合材料。

Containing cyano groups in bridge vinylene instead of phenyl rings showed especial stability and 7 containing methoxy groups in thecentral phenyl ring showed significant instability.

这说明除了取代基引起的电子效应外，取代基位置和空间效应也是影响M-PPV稳定性的重要因素。

The devices of sandwiched structure were prepared by compounding poly[2-methoxy-5-(2-ethyl-hexyloxy)-l,4-phenylene vinylene] with SiO_2. The thickness of MEH-PPV of these devices are different. We found the suitable frequency of drive voltage to obtain the greatest brightness. The device of cascade structure was prepared based on this work.

采用共轭高分子聚2-甲氧基-5-(2′-乙基-己氧基)-1，4-亚苯基亚乙烯基与SiO_2制成夹层结构器件，研究了不同发光层厚度的器件的发光特性，发现长波峰的发光强度随驱动电压频率的增大而增强、短波峰的发光强度随驱动电压频率的增大而减弱，进一步分析了其机理。

Extensive studies have been made on organic and polymeric light emitting diodes because of their practical application as well as inherent scientific interest. Polymer LEDs using Poly (p-Phenylene Vinylene) were first reported in 1990 by Friend Research group and since then various other kinds of conjugated polymers have been developed which exhibit electroluminescence.

自从1990年英国剑桥大学Friend研究小组用聚对苯撑乙烯制作发光二极管以来，人们对PPV及其衍生物的电致发光性能进行了广泛研究并且取得了很大进展。

The spectral properties of different mass percentages of the porphyrin (5, 10, 15, 20-tetra-p-tolyl-21H, 23H-porphine, TTP) doped poly [2-methoxy-5-(2'-ethylhexyloxy)-1, 4-phenylene vinylene] were studied by UV-Vis absorption and fluorescent emission spectra in this paper.

研究了不同质量浓度卟啉掺杂的MEH-PPV的紫外吸收和荧光发射光谱。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。