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

高分子量的丙交酯主要由丙交酯开环制备。

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

对成程中的溶剂及分离等问题进行了讨论。

Using preemulsion and post polymerization a polymer emulsion was synthesized.

采用先乳化、后工艺成功成一种乳液。

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

概述了无皂乳液和杂凝法两种胶囊化方法及其在涂料和塑料加工方面的应用。

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

研究证实,在保持程对稳定的前提下,微乳液凝胶与初始微乳液在结构上具有。

IV.Anionic polymerization studies.

【题名】Telechelic diene prepolymers.

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

造成这一问题的主要原因，是原料油质在存储程中发生变化、二烯烃发生。

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

同原位法比，共混法可制备出更均匀的杂化体系，且TiO2为单分散。

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

以乙腈为分散剂,采用沉淀法成了反乌头酸分子印迹微球。

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

载体-钕络催化剂具有很高的催化活和定向效应.

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

采用乳液的方法,以乙酰化乙烯醇为保护胶体成醋酸乙烯乳液,并用含甲酰胺基的乙组分与其交联。

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

另外，利用改进的微乳液制备的甲基丙烯酸酯类一般都有高Tg与富间规度的质。

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

异氰基化进一步二成二苯基碳化二亚胺，后者又生成含氮杂环的多环芳烃。

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,采用自由基法制备了丙烯酸卷材涂料前驱成膜,获得了适宜的制备工艺条件。

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体系中平稳地进行阳离子开环反应。

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.

这些结果表明在含羟基化的丙交酯/醇铁体系中,羟基化作为共引发剂参与了丙交酯的开环。

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、三氰胺等原料经缩反应制备填充复鞣剂CDF的方法及其能与应用。

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，用本体法成了对二苯胍具有良好识别能力的分子印迹固萃取剂。

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，度增大，分子量趋于增大但分散减小。

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，可产生凝胶。对于给定烯烃和烷基芳烃，氢化可以改善产品质量。