乙烯基

1,1-bis-2-nitroethene was prepared by reacting nitromethane and carbon bisulfide.

摘 要：研究了以硝基甲烷和二硫化碳为原料，合成1，1-二甲硫基-2-硝基乙烯。

The synthesis of poly{2-4-[bi(4-tetrabutylphenylamino]phenylphenylenenvinylene} was beginwith 4-tetrabutylbenzoic,through acylation、Hoffmann rearrangement、bromization、idionization、Ullmann reaction、bromization、condensepolymerization.

聚{2-[4-二(4-叔丁基苯胺基苯基]苯撑乙烯}是以对叔丁基苯甲酸为原料，经酰氯化、酰胺化、Hoffmann降解、碘化、Ullmann反应、溴化、缩聚反应得到。

Dealcoholization temperature markedly influences the surface area and porosity of the resultant MAO-supports. When the support was pretreated at lower or higher temperature, the corresponding MAO-support shows very low surface area; 2.XRD and IR analyses indicate that MAO has reacted with the residual ethanol in the supports, which is an important manner to get MAO fixed on the carrier. Morever, XPS analyse indicates that MAO can also be coordinated with MgCl_2, which is another way to get MAO fixed on the support; 3.ICP and EDX analyses indicate that dealcoholization temperature not only determined the element content on the solid catalyst, but also influences the element distribution on the carrier; 4.The activities of the supported phenoxy-imine catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature. The support (MSP-5) obtained by treating MgCl_2·2.56C_2H_5OH at 160℃for 4 h, then modified by MAO is very effective for immobilizing complex 3, the resultant solid catalyst (MSPC-5) shows very high activity in ethylene polymerization, and its kinetics of polymerization is stable during the reaction process. Finally, PEs with spherical morphology and high bulk density (over 0.35g/ml) were obtained, without reactor fouling; 5.In this work, polymerization conditions such as alkylaluminums, Al/Zr ratio, temperature and H_2 had a pronounced effect on the activity of MSPC-5 and properties of PE;(3). New MgCl_2-Supported Single-Site Catalysts for Ethylene Polymerization In this work, a kind of new MgCl_2 support was obtained by anhydrous MgCl_2 co-milled with solid MAO, and it is a creative contribution. Then some single-site catalysts were supported on the new MgCl_2 support, and the resulted solid catalysts were tested in ethylene polymerization, the results indicated that: 1.XRD and IR analyses indicate that MAO does be coordinated with MgCl_2, which is in good agreement with the results obtained by XPS; 2.co-mlling time had no obvious effect on the texture of support after 12 hours; 3.In this work, MgCl_2 was co-milled with solid MAO for different hours, and then complex 3 was supported on these co-milled supports. It was found that co-milling time markedly influences the activity of solid catalysts, but it had negligible effect on the kinetic profile and the properties of resultant PE.

XPS研究结果表明，MAO不仅仅只和乙醇作用，MAO还与MgCl_2本身有一定的作用，这是一个极为重要的发现； 3、通过ICP和EDX表征，发现载体的脱醇温度直接影响着元素在固体催化剂中的含量及分布； 4、脱醇温度极大地影响着负载苯氧基亚胺类催化剂的活性和聚合物的性能，特别是原始载体经160℃活化4小时制备得到的固体催化剂MSPC-5的活性明显高于其他脱醇温度条件下制得的固体催化，并且催化剂寿命长，表现出稳定的动力学行为，最终获得了高堆密度(大于0.35g／ml)的球形聚乙烯颗粒； 5、本文选择MSPC-5为研究对象，考察了聚合反应参数对催化剂的活性及其聚合物的影响，研究发现：不同的烷基铝对催化剂具有非常重要的影响，特别足TIBA对MSPC-5的助催化活性最高，烷基铝的加入量有一个较佳值，聚合温度为80度时活性最高，H_2的加入使催化剂的活性明显降低且聚合物的分子量也减小；、新型氯化镁载体负载单活性中心催化剂催化乙烯聚合本文创造性采用固体MAO与无水氯化镁直接进行共研磨，制备出了一种的新型的氯化镁载体，并将该载体用于多种单活性中心催化剂的负载化研究，研究表明： 1、通过BET、XRD的表征，再次证实了MAO与MgCl_2之间具有直接作用，与XPS的研究结果相一致； 2、当研磨时间高于12小时时，延长研磨时间对载体的结构没有显著的影响； 3、将配合物3负载于共研磨时间不同的一系列载体上，乙烯聚合结果表明，尽管共研磨时间对负载催化剂的活性具有明显的影响，但是它对聚合物的性能以及催化剂的影响不明显。

In this thesis, the polymerization of triblock copolymer of styrene-butadiene-methyl methacrylate was carried out in glass flask ,with n-BuLi as initiator, 1,1-diphenylethylene as capping agent and Lithium 2(2-methoxyethoxy) ethoxide as additive.

本论文以n-BuLi为引发剂、1，1-二苯基乙烯为戴帽剂、2-(2-甲氧基乙氧基)乙氧基锂为添加剂，对玻璃聚合瓶中非极性-极性三嵌段共聚物聚苯乙烯—聚丁二烯—聚甲基丙烯酸甲酯的合成进行了研究。

EVA/LDPE/ CB conductive foam was made of EVA and LDPE as matrix,HG-1P CB and ACET CB as conductive filler,AC as foamer and DCP as crosslinker.

文章以乙烯-乙酸乙烯酯和低密度聚乙烯为主基体，特导炭黑(HG-1P)和乙炔炭黑为导电填料，偶氮二甲酰胺为发泡剂，过氧化二异丙苯为交联剂，制备了EVA/LDPE/炭黑导电泡沫复合材料。

An improved method is provided for copolymerizing vinyl chloride with allyl glycidyl ether and a vinyl ester.

本发明提供将氯乙烯与烯丙基缩水甘油醚和乙烯酯共聚的改进的方法。

For examples as an additive for lithiumion batteries,as a component of surface coatings or as a monomer for the preparation of polyvinylene carbonate,and the Diels-Alder reaction was carried out successfully between vinylene carbonateand many dienes.

碳酸亚乙烯酯作为聚合物单体可在自由基引发作用下形成较高分子量的聚碳酸亚乙烯酯，另外VC可以和许多二烯类化合物发生反应，合成出许多精细化工中间体。

By using polymerizable surfactants, the stability of the latex and water resistance of the film can be improved. Sodium monoalkyl maleates polymerizable surfactants, sodium monoalkylpolyoxyethylene maleates polymerizable surfactants and N-methyl-N-monododecylfumaroyl taurine polymerizable surfactants are synthesized, by using normal fatty alcohols, alkyl poly ether and maleic anhydride.

以直链脂肪醇、脂肪醇聚氧乙烯醚和马来酸酐为起始原料，设计合成了马来酸单脂肪醇酯钠盐A系列、马来酸单脂肪醇聚氧乙烯醚酯钠盐B系列、N-甲基-N-脂肪醇单酯富马酰基-牛磺酸钠D系列的可聚合乳化剂。

Chocolate brown fog corrosion inhibitor could be prepared by using of waste materials with organic amine being the main contents from production of pharmaceutical industry intermediate 1;8diazabicyclo\hendecene7,built with surfactant compound nonyl phenol polyoxyethylene ether and aliphatic alcohol polyoxyethylene ether.

利用制药工业中间体1，8-二氮杂二环[5，4，0]十一烯-7生产中的废料，与复合表面活性剂壬基酚聚氧乙烯醚、脂肪醇聚氧乙烯醚等，复配得到棕褐色缓蚀抑雾剂。

DCMU clearly prevents the stimulating effect of light,but sodium benzoate,a free radical scarvenger,has no effect.

光明显抑制乙烯形成，敌草隆对光促进乙烯形成有明显抑制效应，而自由基清除剂苯甲酸钠作用不明显。

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。