查询词典 polymerization

Firstly, we studied the influence of all kinds of factors on dispersion polymerization, such as medium, temperature, initiator, and stabilizer.

本论文就是从这两方面的研究出发，先后在载体材料的制备技术、载体与生物大分子的相互作用、筛选中相应的数学物理模型的构筑等方面开展了一系列的工作。

The microgels prepared by dispersion polymerization in polar medium can be used to improve the tensile strength of unsaturated polyester products.

在极性介质中合成的微凝胶能提高不饱和聚酯树脂的抗张强度。

CSD is proved to be an excellent dispersant of dispersion polymerization in nonpolar medium, such as in mixture of aliphatic hydrocarbons.

通过在非极性介质中分散聚合的研究，证明CSD是混合脂肪烃介质中稳定效果优异的的分散剂。

The method is characterized in that: mixture of macromolecular dihydric alcohol and a dihydroxybutyl-terminated polydimethylsiloxane is dehydrated, added with diisocyanate for reaction, then added with a bis propionic acid, a dihydric alcohol chain extender and a catalyst - dibutyl tin laurate, and is diluted by acrylic ester; temperature reduction and emulsion are performed on the mixture after reaction; chain extension reaction is performed in water by a multi-amine chain extender, and siloxane modified polyurethane dispersoid which contains acrylic ester monomer is prepared; and an initiator - potassium persulphate is added into the siloxane modified polyurethane dispersoid for emulsion polymerization.

特征是先将大分子二元醇与二端羟丁基聚二甲基硅氧烷的混合液脱水后加入二异氰酸酯，反应后加入二羟甲基丙酸、二元醇扩链剂和催化剂二月桂酸二丁基锡，并用丙烯酸酯进行稀释，反应后降温乳化，用多元胺扩链剂在水中进行扩链反应，得到含有丙烯酸酯单体的硅氧烷改性聚氨酯分散体，然后再通过加入引发剂过硫酸钾进行乳液聚合。

PDLLA/β-TCP composite was obtained by mixing β-TCP and DLLA in a certain proportion prior to ring-opening polymerization when Sn2 as initiator in a vacuum circumstance and a constant oscillation.

以辛酸亚锡作引发剂，将一定比例的β-磷酸三钙与DL丙交酯混匀后在真空体系下开环聚合，并持续均匀振荡，得到PDLLA/β-TCP复合材料。

PDLLA/β TCP composite is obtained by mixing β-TCP and DLLA in a certain proportion prior to ring-opening polymerization using Sn2 as initiator in a vacuum circumstance and a constant oscillation.

以辛酸亚锡作引发剂，将一定比例的β-磷酸三钙与DL丙交酯混匀后在真空体系下开环聚合，并持续均匀振荡，得到PDLLA/β-TCP复合材料。

Melanin from cheese and other food contained tyrosine, in the body under the action of enzymes, tyrosine into DOPA and then oxidation, the final polymerization into melanin.

黑色素来源于奶酪等食物内所含的酪氨酸，在体内酶的作用下，酪氨酸转化成二羟苯丙氨酸，然后氧化，最后聚合成黑色素。

The key factors influencing the ECH's polymerization were studied, including initiators, addition method of monomer, dosage of catalysts, and reaction time.

研究了影响ECH聚合的一些关键因素，包括引发剂的类型及用量，单体的加料方式及催化剂用量等。

The results show that the polymerization and the electrokinetic characteristics of ...

PASiC的电中和能力较PAC有所下降，且Al/Si摩尔比越小，PASiC的电中和能力下降越多；与PAC相比，PASiC具有更快的凝聚絮凝速度和形成更大的絮体；且Al/Si摩尔比越小，PASiC形成的絮体就越大。

In said method no additives such as disperser and emulgent are used, thus the obtained polymer is relativly pure, the inversion rate of polymerization is high and the post treatment is simple.

在这种聚合方法中，不使用分散剂、乳化剂之类的助剂，这样得到的聚合物比较纯净，而且聚合转化率高，后处理也简单。

It seems likely that Kraft will return with a better offer.

看起来卡夫要重新考虑一个更好的出价了。

But he'd rather burn off my feelers and watch me squirm.

可他却放任那个家伙对我为所欲为！