查询词典 polymerization

Using N,N,N',N'-tetramethylethylenediamine and potassium persulphate as a redox initiation system, high molecular weight poly was synthesized by aqueous deposited polymerization.

以N，N，N'，N'-四甲基乙二胺－过硫酸钾为氧化－还原引发体系，用水相沉淀聚合法合成了超高相对分子质量的聚醋酸乙烯。

An industrial monomer with proper reactivity was selected as a raw material in the research according to the reactivity of the monomers in polymerization initiated by ammonium persulphate in aqueous sulution on a known condition.

通过采用已有由APS引发工业单体DMDAAC的聚合实验条件，以产物PDMDAAC特征粘度作为主要考察指标，10批工业单体中选出其中一批聚合性能适中的工业单体，作为本次研究的实验用单体。

Pilot-plant test for synthesis of poly/attapulgite superabsorbent composite was carried out using acrylic acid and attapulgite as main raw materials,N,N′-methylene-bisacrylamide as crosslinker and composite composed of V-50 and ammonium persulphate as initiator by solution polymerization in a 100 L pilot-plant test equipment.

在100 L的中试设备上，用水溶液聚合法，以丙烯酸和凹凸棒黏土为主要原料，以N，N-亚甲基双丙烯酰胺为交联剂，V-50和过硫酸钾复配作为引发体系，进行了聚丙烯酸/凹凸棒复合保水剂的中试放大实验。

In addition,the activity of the putadiene polymerization catalyzed by SAAC.Nd.Fe-AlEt Cl-Al in the presence of phenanthroline and the relationship bet-ween the polybutadiene microstructure obtained with the content of Fe in SAAC.Nd.Fe were studied.

此外，初步考察了在邻啡绕啉存在下SAAC·Nd·Fe体系聚合丁二烯的活性以及所得产物的微观结构与络合物SAAC·Nd·Fe中Fe的含量关系。

In this paper, a new generation polymer of guide-3,4-poly ethylene dioxythio phene was introduced. Preparation processing of PEDT films was studied. Most of principle was recommended. The influence of different process factors on PEDT films properties had been discussed, observing the surface situation ,and studying the relationship between conductivity、surface situation and mensuration of degree of polymerization .

本文介绍了新一代导电聚合物材料PEDT(3，4—聚乙烯二氧噻吩)的主要特点，相关原理，及合成方法，研究发现影响薄膜电导率和致密度的影响因素如：聚合温度，单体和氧化剂配比等，研究了PEDT材料的热稳定性，对PEDT的膜层表面形貌以及分子量的测定方法进行了研究。

"Half-water-hydrolysis"method is used to modify the preaminolysis of phenylenediamine in"step coupling polymerization". First, dehydrochlorination polycondensation between Si-OH and Si-Cl group during polycondensation reaction is employed instead of dehydration reaction between Si-OH groups before, which avoids the disconnection of Si-N bond destreyed by isolated water and improves the H-bonding template effect of the bridged-phenylenediamine.

探索用&半水水解-脱氯化氢缩聚&法对我组过去提出的&全水水解法&的预胺解法加以改进，经&半水水解&得到的含硅羟基和硅氯基的单体再以脱氯化氢代替脱水的方法减少了极性溶剂存在下游离水断裂梯撑模板的硅-氮键的可能性，有效地提高了对苯二胺梯撑中氢键的模板作用。

Photons and photoactive room temperature ionic liquid cations replaced conventional oxidants and metal complexes to promote the polymerization of aniline monomer.

在聚合反应过程中，光子和具有光化学活性的室温离子液体阳离子取代了传统的化学氧化剂和金属络合物促使苯胺单体发生氧化。

Nylon 6/nano-TiO2 and nylon 6/nano-Al2O3 composites were prepared via in situ polymerization, and the mechanical properties, dynamic mechanical behavior and photooxidative degradation of the composites were investigated.

通过原位复合的方法合成了尼龙6／纳米TiO2和尼龙6／纳米Al2O3复合材料，并对材料的力学性能、动态力学行为和光氧化降解行为进行了初步的探讨。

The graft polymerization of acrylonitrile on Crosslinked polyvinyl alcohol microspheres CPVA microspheres was performed by using cerium ammonium sulfate as initiator, and grafted microspheres CPVA-g-PAN were prepared. Subsequently, the grafted PAN was converted into poly via amidoximation reaction with hydroxylamine hydrochloride as reagent, resulting in the functional microspheres CPVA-g-PAO. The chemical structure and physicochemistry characters were adequately characterized with infrared spectrum, scanning electron microscope and determining Zeta potential. The effects of main factors on the amidoximation transform reaction of the grafted PAN were researched with emphasis, and the adsorption property of the functional microspheres CPVA-g-PAO for some biomolecules was examined preliminarily with uric acid as a model biomolecule.

以硫酸铈铵为引发剂，实施了丙烯腈在交联聚乙烯醇微球表面的接枝聚合，制备了接枝微球CPVA-g-PAN，然后以盐酸羟胺为试剂，通过偕胺肟化转变，将接枝的PAN转变为聚偕胺肟，制得了接枝有聚偕胺肟的功能微球CPVA-g-PAO，采用红外光谱法、扫描电子显微镜及Zeta电位测定等法，对功能微球CPVA-g-PAO的化学结构及物理化学特性进行了表征，重点考察了各主要因素对接枝PAN的偕胺肟化转变反应的影响，也以脲酸为模型分子，初探了功能微球CPVA-g-PAO对生物分子的吸附性能。

MAIN OUTCOME MEASURES:① The rate of polymerization of fibrin monomer (taken as the comprehensive predictor for the concentration and function of plasmic fibrinogens).

主要观察指标：①纤维蛋白单体聚合速率(反映血浆纤维蛋白原浓度和功能的综合参数)。

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！