丙烯酸

Three series of liquid crystals were synthesized in this study. In the first part of this study, a rectangular liquid crystal, compound 8, with two ethynyl groups and two oxymethylene groups used to link to phenyl groups and biphenyl groups with the central phenyl core respectively exhibits smetic phases.

本研究成功合成出三系列化合物：第一系列为合成以二炔基二亚甲氧基为中心之盘状液晶，并在二亚甲氧基尾端引入可进行光聚合反应之二丙烯酸酯基，得到层列型液晶化合物8，其液晶相温度范围在46.1~74.8℃，且单体8对光与热之稳定性较差，高温下容易自行聚合。

AIM To prepare osmotic acrylic resin Eudragit RS,a pharmaceutical excipient,and study the synthetic method.

目的：研究Eudragit RS的合成方法，制备渗透型药用丙烯酸树脂。

Catalytic Combustion of exhaust gas of crylic acid was studied on a self-made equipment.

在自制的设备上进行了丙烯酸废气的催化焚烧试验。

Such a simple method could be facilely used to other thermoplastics such as polypropylene, polymethylmethacrylate, polycarbonate and so on, to produce super-hydrophobic materilas.

软模板印刷方法可以用在其它热塑性聚合物如聚丙烯、聚甲基丙烯酸甲酯和聚碳酸酯等材料上，是一种简单有效地制备超疏水性表面的方法

Low viscosity polyester acrylic resin, flexility well, prices are cheaper.

聚酯丙烯酸树脂黏度低，柔韧性好，价格较便宜。

The results showed COD removal rate was no less than 50%, turbidity removal rate more than 90%, while using sodium acrylate-acryamide copolymer as flocculant and CaC2 as aid-flocculant. The flocculate is nonpoisonous and can be recycled.

结果表明，采用丙烯酸钠-丙烯酰胺共聚物作絮凝剂，氯化钙作助凝剂处理淀粉废水时，COD_去除率可达50％以上，浊度去除率可达90％以上，所得到的絮体无毒，可进一步回收利用。

Polyacrylate sodium with high molecular weight is widely used as one kind of important anionic flocculation in industry.

高分子量聚丙烯酸钠是一种重要的阴离子型絮凝剂，在工业上有着广泛的应用。

The mechanism of dispersion fluidization effect of ACS on cement particles was discussed.

研究了丙烯酸接枝共聚型高效减水剂ACS对水泥浆产生分散-流化作用的机理。

A polymer particle profile modification agent was prepared using acrylic acid and acrylamide as materi- als,adding foamer A and high temperature resistant monomer B.

针对目前油田普遍存在调剖剂用量大、不经济等缺点，以丙烯酸和丙烯酰胺为原料，通过加入发泡剂A和抗高温单体B，制备了聚合物颗粒调剖剂。

According to the synthetic methods study of the quinolones, it is found that the synthetic method of parent ring is of wide use by the condensation from α-substituted aryl formyl-β-substituted aminoacrylic acid and the inner molecular nucleophilic substitution reaction, which is almost suitable for the quinolones preparation of different rings or different substituted groups in 〓-position.

然后，对其合成方法进行了归纳，发现：由α-取代芳甲酰基-β-取代氨基丙烯酸缩合，经分子内亲核取代反应形成喹诺酮母环的合成方法用途非常广，几乎适用于所有不同环系或〓-位是不同取代基的喹诺酮类衍生物的制备。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。