查询词典 diethylenetriamine

Therefore it can he inferred that diethylenetriamine oxycellulose synthesized have the function of adsorbability for uric acid and As.

由此可知所研制二乙烯基三胺基氧化纤维素具有分别吸附尿酸和三价砷的功能。

A new imidazolinyl intermediate is prepared from phenylacetic acid and diethylenetriamine firstly, and then they react with the solution of sodium chloroacetate into the imidazolinyl quaternary ammonium salt.

以二甲苯为溶剂，苯乙酸和二乙烯三胺为原料，经酰胺化和环化脱水合成了新型咪唑啉化合物，并用氯乙酸钠溶液对其进行改性得到了苯乙酸咪唑啉季铵盐。

For the above purposes, using a tailored cyanometalate precursor,(1) Tp=hydrotris (pyrazolyl borate; Bu〓N〓=tetrabutylammonium cation , two trinulear complexes,〓(2),〓(3; cyclam: 1, 4, 8, 11-tetraazacyclotetradecane), two one-dimensional polymers,〓(4; dien: diethylenetriamine),〓(5), and a cluster 〓(6) have been synthesized and characterized structurally and magnetically.

基于上述研究热点，我们以修饰的氰基金属化合物(1)为构筑基元（Tp：三吡唑基氢硼烷，Bu〓N〓：四丁基铵离子），合成了两个杂三核化合物，〓(2)，〓（3；cyclam：1，4，8，11-四氮环十四烷），两个一维聚合物，〓（4；dien：二乙烯三胺），〓(5)，和一个十四核簇合物〓(6)。

The results showed that there was a more better effect of filmformation and absorbency to use poly 1788 as an adhesive and polyvinyl pyrrolidone(K:90) as a hydrophilic polymer. The silicon dioxide with particle size 0.3-1 μm as a inorganic pigment had a better absorbency. The polyethylene glycol modified with ethylenediamine had a more better characteristic of dye immobilization, absorbency and definition than the polyethylene glycol modified with diethylenetriamine, of which the polyethylene glycol of molecular weight of 400 modifiedwith ethylenediamine had more best performance.

研究结果表明：采用聚乙烯醇1788作黏合剂、聚乙烯吡咯烷酮(K值为90)作亲水性高分子可得到比较理想的成膜效果和吸墨效果；粒径分布范围在0.3-1 μm的二氧化硅作为无机颜料具有较好的吸墨性能；用乙二胺改性的聚乙二醇比用二乙三胺改性的聚乙二醇具有更好的固墨性、吸墨效果以及清晰度，其中乙二胺改性的分子量为400的聚乙二醇所得到的烷基多胺的效果为最好。

Two modified cotton stalk cellulose derivatives (CEN 1, CEN 2) were prepared by re action of epoxy activated cotton stalk cellulose powder with diethylenetriamine or triethylene tetramine , respectively.

我们近期研究［6，7］表明，由农业废弃物棉杆纤维制得的含氮纤维素醚衍生物对有毒的金属离子，尤其是对Hg2＋、Cd2＋、Cr3＋、Pb2＋。

Dien = diethylenetriamine: Thecoordination sphere of copper in the complex is distorted square-based pyramidalgeometry with 〓 chromophores.

两种构型的titb配体同时与〓单元配位，在晶格Ⅲ平面形成了一种72元心形环。72元心形环在晶格Ⅲ平面无限扩展，形成由72元心形环稠合而成的平面网状结构。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。