二聚的

On the basis of the Frontier Orbital Theory and three Bonding Principles, the possibility of reaction of active HOSA^- carbanion on polymerization process of MA by alkali catalyst and the mechanism of anionic polymerization of maleic anhydride were studied.

应用前线轨道理论和成键三原则研究了碱催化条件下马来酸酐均聚过程中α-羟基丁二酸酐碳阴离子活性中间体参与反应的可能性及其阴离子聚合机理。

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。

The influence of microemulsion types on resolving power of Eucommia flavonoids was investigated with SDS/n-C4H9OH/n-C7H16/H2O microemulsion as developer on polyamide film.

以十二烷基硫酸钠－正丁醇－正庚烷－水微乳液作为展开剂，通过聚酞胺薄层色谱，研究了微乳液类型对杜仲黄酮分辨率的影响。

Simulated water stress experiment on the five-leaf stage of maize growth with different concentrations of polyethylene glycol in nutrient solution was performed to study the effects of water stress and rewatering on chlorophyll content,chlorophyll fluorescence kinetic parameters,photosynthetic parameters and soluble sugar content.

采用聚乙二醇模拟干旱胁迫方法，研究玉米五叶期水分胁迫期间及复水后叶片叶绿素含量、叶绿素荧光动力学参数、光合参数和可溶性糖的补偿效应。

By the means of chemical modification, a series of reactive maleic anhydride terminated polyethylene glycols with different molecular weight have been synthesized.

合成了一系列含有反应活性端基的改性聚乙二醇，并对其结构与特性进行了表征和讨论。

The corrosion inhibition effect of polyethylene glycols on carbon steel was evaluated by OCP,dynamic potential polarization and electrochemical impedance spectroscopy techniques.

通过开路电位测量法、动电位极化曲线法和电化学阻抗谱法研究了表面活性剂聚乙二醇对A30碳钢的缓蚀作用，初步推测了其缓蚀机理。

A series of imides oligomers were synthesized with the phenylethynylphthalic anhydride , nadic anhydride and cyanophthalic anhydride as endcapped agents.

我们以苯乙炔苯酐、降冰片烯二酸酐和氰基苯酐为封端剂合成了一系列的酰亚胺低聚物。

Iron oxide Nanocrystalline Powders were prepared respectively by precipitation, stearic acid gel, polyethylene glycol gel, citrate gel and iron citrate combustion. The influence of synthesis method on the final product, such as the crystal structure, crystalline grain size, dispersivity were studied.

分别采用沉淀法、硬脂酸法、聚乙二醇法、柠檬酸法和柠檬酸铁快速燃烧法制备纳米氧化铁晶体，研究了这 5种制备方法对粉体晶型、平均粒径、磁性、分散性的影响。

It is a highly flexible rubber liner based on EPDM (Ethylene-Propylene-Diene terpolymer), a polymer used for the production of vulcanised elastomeric geomembranes.

乙烯-丙烯-二烯三元共聚物的高弹性橡胶膜，这种聚合体曾用于生产硫化弹性橡胶膜。

The reasons of higher sample capacity of a solgel column have been studied.

对溶胶凝胶聚二甲基硅氧烷柱有较高柱容量的原因进行了探讨。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。