查询词典 cationic

The cationic polyelectrolyte P (AM-DMDAAC with a certain scope of molecule weight was synthesized by controlling synthesis conditions. P is a kind of functional additive for carbon paper designed especially for proton exchange membrane fuel cell. The kinetic behavior of copolymerization of AM and DMDAAC initiated by Na2S2O8-Na2SO3 redox system in aqueous solution was studied.

通过控制合成工艺条件，合成了具有一定相对分子质量范围的阳离子聚电解质，作为质子交换膜燃料电池专用碳纸功能性添加剂，研究了过硫酸钾亚硫酸钠氧化还原引发体系水溶液聚合的动力学行为，得到的速率方程为：Rp=Kp［K2S2O8］0.55［Na2SO3］0.56［M］1.14。

Both the functional additive and beeswax were emulsified with mixed emulsifiers and blended with cationic hydroxylsilicone emulsion to produce the multifunctional feeling agent ,which gives leather smoothy and oily feelings together with antiseptic.

将该季铵盐作为功能添加剂加入蜡中，以复合乳化剂乳化制得蜡乳液，进一步与阳离子型羟基硅油乳液共混得到的手感剂不仅赋予皮革油润的蜡感和滑爽感，并使皮革具有抗菌、抗静电

Inthe compound, Pr~(3+) cations are eight-coordinated with oxygen atomsfrom six DMSO molecules, two polyanions. The crystal structureindicates that the compound forms a one-dimensional zigzag chain builtfrom the alternating polyanions and cationic units throughW-O_d-Pr-O_d-W links.

结构分析结果表明，化合物中Pr~(3+)离子为八配位，配位氧原子分别来自6个NMP分子和二个杂多阴离子的端氧原子，金属配阳离子与杂多阴离子骨架通过W-O_d-Pr-O_d-W相连。

And the improvement of this system that cationic colloidal magnesium aluminum hydroxide accompanied with the anionic microparticulate was discussed.

介绍了近年来微粒助留体系的研究进展，尤其是无机阳离子微粒助留体系，着重论述了阳离子氢氧化镁铝与阴离子聚合物的协同助留作用及其发展。

Methods BALB/c nude mice were subcutaneously transplanted with SCG-7901 tumor cells, then the mice were randomly divided into antisense oligonucleotide group, sense oligonucleotide group and the control group. The HIF-1α ASOND complexed with cationic liposome, HIF-1α SOND complexed with cationic liposome and liposome were injected intra-tumorally in the above groups, respectively.

用人胃癌细胞株SCG-7901建立胃癌裸鼠皮下移植瘤模型，将荷瘤裸鼠随机分为反义寡核苷酸组、正义寡核苷酸组和对照组，瘤体内分别注射阳离子脂质体包裹的HIF-1αASOND、HIF-1αSOND和空白阳离子脂质体。

COD removal efficiency of the tested water can reach 78 % or more, the transmittancy can reach 90 % or more. Compared with cationic flocculants with different cationic structures, the...

与市售几种不同阳离子结构的高分子絮凝剂相比，自制PDA样品的综合应用性能较好，具有良好的实用价值。

The paper copolymerizes cationic polyacrylamide by aqueous solution copolymerization copolymerization and inverse emulsion copolymerization, and determines the art of it. On the base of determination, makes experiments on the conditions for copolymerization of cationic polyacrylamide, and attain wastewater's flocculant with perfect performances.

本文分别用水溶液共聚法和反相乳液聚合法合成了阳离子聚丙烯酰胺，并对合成的工艺条件进行了探索，在此基础上，对阳离子聚丙烯酰胺合成不同的条件进行了应用实验，筛选出了性能较好污水处理剂阳离子聚丙烯酰胺。

Based on these results, it is reasonable to assume that cationic surfactant could form well-stabilized films on the surface of partially hydrated polyacrylamide solution, as a result a kind of surface active complex was formed between cationic surfactant and HPAM.

总之，本论文系统研究了阳离子表面活性剂和不同水解度的聚丙烯酰胺之间的相互作用，发现阳离子表面活性剂能在HPAM水溶液表面成膜，这和表面活性剂的HLB值有关，还与HPAM的水解度以及溶液的pH值有关；两者之间的静电引力是主要驱动力，这一过程又被表面活性剂链之间的疏水相互作用所增强。

The transient transfection efficiency was measured by flow cytometry. The stable transfected cells were screened by G418. Results Electrotransfection had the highest transient transfection efficiency (56.8%), with the most masc clones of stably transfection and the least time taken to form big masc clones (20 days). Cationic polymer mediated transient transfection had the lowest efficiency (1.7%), with the least masc clones and the longest time taken to form the big masc clones (30 days). Cationic liposome transfection had a transient transfection efficiency of 39.9% and took 25 days to form the big masc clones.

结果 电转染有最高的瞬时转染效率(56.8%)，稳定转染得到的阳性克隆最多，且从细胞筛选到扩增至得到阳性大克隆所用的时间也最少（约20d）；用阳离子聚合物瞬时转染率低(1.7%)，稳定筛选同样可以得到阳性大克隆，但是数量很少且从细胞筛选到扩增至阳性大克隆所用的时间也最多（约30d）；阳离子脂质体转染效果居中，瞬时转染率为39.9%，从细胞筛选到扩增至得到阳性大克隆所用的时间约25d。

A new type of dimorphic denature starch cationic starch with lauril glucoside was synthesized by reaction of cationic starch with lauryl alcohol at the presence of emulsifier and catalyst.

在乳化剂和催化剂作用下，以阳离子淀粉和月桂醇为主要原料，合成了一种新型高取代度的双变性淀粉——阳离子淀粉月桂基糖苷。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。