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Another transparent gels with open-cell structure could be obtained by bicontinuous microemulsion polymerization using potassium perman...

研究证实,在保持聚合过程相对稳定的前提下,微乳液聚合物凝与初始微乳液在结构上具有相似性。

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Using preemulsion and post polymerization a polymer emulsion was synthesized.

采用先乳化、后聚合工艺成功合成种聚合物乳液。

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IV.Anionic polymerization studies.

名】Telechelic diene prepolymers.

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High molecular weight PLA can be prepared by ring-opening polymerization of lactides.

高分子量的聚丙交酯主要由丙交酯开环聚合制备。

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The free radical polymerization of VOZO in benzene solution results poly 2 vinyl 2 oxazoline(PVOZO).

对合成过程中的溶剂及分离进行了讨论。

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Soapless emulsion polymerization and heterocoagulation, the most important encapsulations of microparticles have been outlined intensively.

概述了无皂乳液聚合和杂凝聚法两种囊化方法及其在涂料和塑料加工方面的应用。

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It is caused by the property change of feed stock in storage process and alkadiene polymerization.

造成的主要原因,是原料油性质在存储过程中发生变化、二烯烃发生聚合。

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In comparison with in-situ polymerization, more homogeneous hybrids with monodispersion of titania were synthesized by blending method.

同原位聚合法相比,共混法可制备出更均匀的杂化体系,且TiO2为单分散。

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Microspheric trans aconitic acid imprinted polymers were synthesized via a precipitation polymerization with acetonitrile as dispersion solvent.

以乙腈为分散剂,采用沉淀聚合法合成了反乌头酸分子印迹聚合物微球。

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The catalytic system formed from polymer-supported neodymium complexes shows high catalytic activity and stereospecificity for butadiene polymerization.

聚合物载体-钕络合物催化剂具有很高的催化活性和定向效应.

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We found that the poly methacrylates prepared by modified microemulsion polymerization have properties of high glass transition temperature (Tg) and rich syndiotacticity.

另外,利用改进的微乳液聚合制备的聚甲基丙烯酸酯类聚合物般都有高Tg与富间规度的性质。

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Phragmoplast of coil coating has been prepared by free radical polymerization and by using acrylic acid,methyl methacrylate,butyl acrylate as the raw materials.

以丙烯酸、丙烯酸丁酯和甲基丙烯酸甲酯为单体,采用自由基聚合法制备了聚丙烯酸卷材涂料前驱成膜物,获得了适宜的制备工艺条件。

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Using the method of latex polymerization,poly vinyl acetate was synhesized with PVA as protective colloid,which was crosslinked with formylamine-group containing component.

采用乳液聚合的方法,以乙酰化聚乙烯醇为保护体合成聚醋酸乙烯乳液,并用含甲酰胺基的乙组分与其交联。

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As the isocyan group is polymerized further, diphenyl carbondiimine may be formed, further polymerization of which forms a nitrogen-containing polycyclic aromatic compound.

异氰基化合物进步二聚成二苯基碳化二亚胺,后者又聚合生成含氮杂环的多环芳烃。

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The cationic ring-opening polymerizations of epoxide based monomers were studied using tris(2-hydrooxyethyl) isocyanurate(THEIC) as initiator and trifluoroboron plus ether complex system as catalyst.

发现THEIC与环氧单体可在非均相体系中平稳地进行阳离子开环聚合反应。

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A molecularly imprinted solid phase extractant, particularly for the recognition of diphenylguanidine (DPG) was prepared using diphenylguanidine (DPG) as the template and bulk polymerization.

摘要以二苯胍为模板分子,用本体聚合法合成了对二苯胍具有良好识别能力的分子印迹固相萃取剂。

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The ring-opening polymerization mechanism of lactide in the presence of hydroxyl compounds was studied by using ferric ethoxide and ferric n-butoxide as catalysts respectively.

些结果表明在含羟基化合物的丙交酯/醇铁聚合体系中,羟基化合物作为共引发剂参与了丙交酯的开环聚合。

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High-grade filling and retanning agent CDF was prepared by condensation polymerization reaction of urea,cyanuramide and dicyandimide.The property and application of the product were discussed.

本文主要论述了用脲、双氰胺、三聚氰胺原料经缩聚反应制备填充复鞣剂CDF的方法及其性能与应用。

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The GPC results indicated that the polymerization degree increased with the extension of reaction tine and the molecular weight distribution was tend to be monodispersity.

GPC研究结果表明随反应时间延长,聚合度增大,聚合物分子量趋于增大但分散性减小。

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The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

二烯烃和烯基芳烃是非常不稳定的组分,可聚合产生凝。对于给定烯烃和烷基芳烃,氢化可以改善产品质量。

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Crash Course 综合篇

Well, ethene based polymers form through a process called addition polymerization.

好吧,基于乙烯的聚合物是通过称为加聚的过程形成的。

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Crash Course 综合篇

There are, of course, other sorts of polymerization, as well.

当然,还有其他类型的聚合。

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Crash Course 综合篇

You also learned how addition polymerization reactions work.

您还了解了加成聚合应的工作原理。

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Crash Course 综合篇

This process continues until two radicals meet each other consuming both free radicals without producing any more, thus, ending polymerization.

过程一直持续到自由基相遇并消自由基不再产生任何自由基,从结束聚合。

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化学 Crash Course

You also learned a little bit about cis-trans isomerism and learned a few important reactions of alkenes and alkynes such as hydrogenation, halogenation, and polymerization.

您还了解了一些顺现象,并了解了烯烃和炔烃的一些重要应,例如氢化、卤化和聚合。

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Crash Course 综合篇

And, in the case of addition polymerization it attacks the double bond and joins one of the carbons, while the other carbon is itself left with an unpaired electron.

且,在加成聚合的情况下, 它会攻击双键并连接一碳,另一碳本身会留下一未配对的电子。

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化学 Crash Course

And those opened bonds can also provide connections for carbon atoms to attach to each other, too, opening the door for polymerization, which we should talk about soon enough.

那些打开的键也可以为碳原子提供相互连接的连接,也为聚合打开了大门,我们应该尽快讨论。

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Crash Course 综合篇

Including the polymerization of amino acids monomers, which along with other polymers like DNA and RNA, and glycogen, make up a lot of the stuff that is you.

包括氨基酸单体的聚合,它与其他聚合物(如 DNA 和 RNA)以及糖原一起成了你的很多东西。

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科学杂志:科技

This protective shell, delays polymerization just long enough, so when the materials are slightly pressed together, the non-solvent helps transport the glue into the layers as it evaporates, resulting in an instant tough bond.

这种保护壳可以将聚合延迟足够长的时间,因此当材料被轻微压在一起时, 非​​溶剂有助于在胶水蒸发时将其输送到各层中, 从立即形成牢固的粘合。

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科普小杂文

These are combined in a chemical reaction to create ethylene dichloride, which is turned into a gas, and then, through a process called " polymerization" , it becomes a fine, white powder called polyvinyl chloride, or PVC.

它们在化学应中结合,生成二氯乙烯,变成气体,然后,通过一叫做“聚合”的过程,变成一种白色的细粉末,叫做聚氯乙烯,简称PVC。

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