查询词典 anionic

In the view of green chemistry and sustainable development, a series of new easily biodegrading amino acid-based anionic surfactants were prepared by reaction renewable resources as starting materials with amino acids.

本文从绿色化学和可持续发展的角度出发，以天然可再生资源为原料，与氨基酸反应合成一系列新型易生物降解的氨基酸型阴离子表面活性剂。

In the dehydrogenating process,the anionic A-T fragmentgradually changes its electronic configuration fromπ~* toσ~* state,like the singlebases adenine and thymine.

在脱氢过程中，阴离子A-T的碎片会逐渐改变它的低能电子组态，从π~*态转变到σ~*态，这种变化跟在单个碱基腺嘌呤和胸腺嘧啶的情况相似。

Emulsification is the mainly reason to influence on the reaction, the influences of emulsifiers such as the concentration of emulsifies, the ratio of anionic to nonionic emulsifier on the polymerization stability were researched;The influences of concentration and feeding method of initiators on the reaction stability and the mechanical properties of coating film of acrylate polymerization stability were researched;The influences of reaction temperature, stirring speed and pH buffer agent on the polymerization stability and pH regulator on the storage stability of Acrylate emulsions were also researched.

乳化剂是影响乳液稳定性的主要因素，因此对乳化剂进行了全面的探讨，包括乳化剂的种类和用量、阴离子型与非离子型乳化剂的比例对乳液稳定性的影响；文中还研究了引发剂的用量、加入方式对聚合稳定性的影响，以及引发剂用量对聚丙烯酸酯涂膜力学性能的影响；此外，讨论了反应温度、搅拌速率、pH值缓冲剂对乳液聚合过程稳定性的影响及pH调节剂对乳液贮存稳定性的影响。

On the basis of this view we elucidate that the structure units,which dominate the crystal morphology,are anionic coordination polyhedrons.

由此进一步阐明了组成晶体结晶形态的结构基元是负离子配位多面体。

It is set forth that the symmetry of coordination anions in crystals is coincident with that of morphology if the boundaries of unit cell are divided with the faces,edges and angles of anionic coordination polyhedrons.

提出晶胞界线是以负离子配位多面体的面、棱和角为界面而划分的；晶体中负离子配位多面体的对称性与晶体形态的对称性是对应一致的。

The orientation adhesion of nanocrystallites and the dendritic crystals formed by connection of crystallites were discussed by the growth unit model of anionic coordination polyhedrons.

用负离子配位多面体生长基元理论解释了ZnS晶体的这种生长现象，一定的温度和压力是形成枝蔓晶结构的必要条件。

An addition of anionic and nonionic surfactants to the EPC coatings can improve their smearing p...

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The application characteristics of liquid dyes in kraft liner board was discussed in this paper, and the performances of cationic and anionic direct dye s were analyzed.

叙述了液体染料的应用特性，并对阴、阳离子直接染料的染色特性进行分析，阴离子直接染料用在牛皮箱板纸上总的染色成本稍低，耐光性稍好；而阳离子直接染料在调色过程、换色相时较便利。

The synthetic technique of anionic surfactant sodium dodecyl diphenyl ether disulfonate was studied.The best reaction conditions were determined.Alkylation was carried out with n∶ n=5∶1 at 70 ℃ for 5 h to attain 82% yield.

研究了十二烷基二苯醚二磺酸钠阴离子表面活性剂的合成工艺，得出烷基化的最佳反应条件为：催化剂用量为n∶n =5∶1；反应时间 5h ；反应温度 70℃；二苯醚的转化率 82 %。

Alkyl diphenyl ether disulfonate is a serie of anionic surfactants with many functions. It has two hydrophilic head groups and different from conventional surfactants.

烷基二苯醚二磺酸钠是一类在结构和性能上有别于传统表面活性剂的多功能性双亲水基型阴离子表面活性剂，具有卓越的表面化学性能及应用性能。

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。