活性剂

Concentrated emulsion polymerization of styrene in the presence of two polymerizable surfactants, sodium undecylenic acid and newly synthesized CS-1 was carried out.

在苯乙烯的浓乳液聚合体系中，考察了两种可聚合的表面活性剂十一烯酸钠和新近合成的阴离子型羧酸盐类的表面活性剂CS-1的聚合行为。

The surfactant injection is, therefore, recommendable in the pre-waterflooded unfractured zones as long as the proper surfactant type is selected.

那表面活性剂注入是，因此，可推荐的在前 waterflooded 中不破碎地域只要那适当的表面活性剂类型是挑选的。

In the second part of this dissertation, the oxidation reaction of veratryl alcohol catalyzed by ligninase in the presence of surfactant have been first studied by spectrophotometric technique.

本论文的第二部分工作就是以藜芦醇的氧化反应为指示反应，首次就表面活性剂对木素过氧化物酶的头基效应以及非离子表面活性剂存在下酶促反应动力学和过氧化氢抑制动力学展开了研究。

In recent years, the study and development of the zwitterionic surfactant cause much attention with the science and technology development, especially because of the high require for the mild kind of chemical commodity and environment protect.

近年来，随着科学技术的发展，尤其是人们对温和型日化产品及环境保护的要求日益高涨，因而对两性表面活性剂的研究与开发兴趣倍增，不仅在数量上显著增多，而且品种也在迅速增多，现已成为近年来发展最快的一类表面活性剂。

Zwitterionic surfactant not only has properties of conventional surfactants, but also has many unique properties, for example, the low toxicity and stimulating to the skin and the eyes, good biologic degradation, basically no social effects of pollution, in addition it is able to bear the hard water and the high concentration electrolyte.

两性表面活性剂不仅具有阴、阳离子表面活性剂的性能，而且具有许多独特之处，例如，低毒性和对皮肤及眼睛的低刺激性，良好的生物降解性，基本上无公害和污染，而且具有耐硬水及高浓度电解质性能。

General meanings, feather and behavior of surfactant, Chemical structure, characteristic and synthesis of anionic, cationic, non-ionic and zwitterionic surfactants, Extraordinary properties and their correlative effecting factors.

阳离子、非离子和两性离子表面活性剂的化学结构、特点和合成方法；同时对表面活性剂的性质及相关因素作一大致的阐述。

Aqueous film-forming foam concentrates ( also called light water foam concentrates ) is made up of hydrocarbon surface active agent, fluocarbon surface active agent, auxiliary agent, stabilizing agent, antifreeze agent, etc.

水成膜泡沫灭火剂由碳氢表面活性剂、氟碳表面活性剂、助剂、稳定剂、抗冻剂等组成。

The results demonstrate that LAS can be biodegraded by microorganisms in the water and that the percentage of degradation of LAS was more than 95 % after 26 d.

表面活性剂在造福人类的同时，也带来了一系列的环境问题，我国环境标准中将表面活性剂列为第二类污染物质。

Compared with chemical surfactant, biosurfactant has a low toxicity to ecological system of Earth and can be biodegraded by microorganism.

相对于化学合成的表面活性剂，生物表面活性剂对生态系统的毒性较低，且可生物降解。

Chelating surfactants is a type of functional surfactants.

螯合性表面活性剂是一种新型的功能型表面活性剂。

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。