查询词典 sulfonic

The cumulative risk of various alkyl- or aryl-substituted sulfonic acid ester impurities should be taken into account.

需要考虑多种烷基或芳基磺酸酯杂质的累积风险。

On the other hand, the sulfonic type PFSAS exhibits an excellent anti-oxidation property

而全氟磺酸型SAS具有特殊优异的耐氧化性能。

It takes heavy alkyl benzene as source material to synthesize alkyl benzene sulfonic acid through SO 3 falling film sulfurization technique and neutralization and re allocation.

介绍了以抚顺洗化厂的重烷基苯为原料经切割筛选，采用SO3 降膜式磺化工艺合成出烷基苯磺酸，再经中和、复配，研制出了性能稳定的烷基苯磺酸盐。

With water-alcohol as solvent, 1-amino-2-naphthol-4-sulfonic acid was prepared from β-naphthol by nitrosotion, addition, and sulphonation.

摘 要：以β萘酚为原料，在水醇混合溶剂存在下，经亚硝化、加成、磺化制得 1 氨基 2 萘酚 4 磺酸，考察了原料配比、混合溶剂配比、反应时间、反应温度及过滤等因素对反应的影响，确定了优惠工艺条件。

A sulfonated poly aryl ether with sulfonic group on naphthalene ring of side chain and preparation thereof, which is capable to solve technical problems of complexity in synthesis, hardness in controlling sulphonation position and degree, high possibility of side reaction in sulphonation, complexity in sulphonation and hardness to realize indutrialzation.

一种磺酸基在侧链萘环上的磺化聚芳醚及其制备方法，解决现有技术中合成方法复杂，磺化位置和磺化度难以控制，磺化过程中容易发生多种副反应，磺化工艺复杂难以实现工业化等技术问题。

The results showed that dimethyl sulphoxide and formamide were not rational choices for gel spinning process of high-relative viscosity nylon 6 when m- cresol, sulfonic acid and form.

结果表明：二甲基亚砜和甲酰胺不宜作高相对粘度尼龙6的冻胶纺丝溶剂，硫酸、甲酸和间甲酚比较适宜；提高温度有利于降低剪切速率，质量分数为12％的间甲酚溶液和质量分数为9％的甲酸溶液作溶剂，其尼龙6溶液分别在50～60℃和45℃以上有较好的可纺性；溶剂对尼龙6晶体结构的形成有着重要的影响。

Starting from the hydroxylamine (dimethyl amino ethanol, triethanolamine) and 1, 3-propane sultone, a series of hydroxyl and sulfonyl dual-functionalized zwitterionic salts were synthesized. Then dual-functionalized ionic liquids containing both hydroxyl and sulfonyl functional groups were produced successfully by zwitterionic salts and three kinds of strong acids (p-toluene sulfonic acid, trifluoromethanesulfonic acid, methanesulfonic acid) respectively. The structure of zwitterionic salts and dual-functional ionic liquids were confirmed by the 1H NMR and IR.

以羟基有机胺(N，N-二甲基乙醇胺，三乙醇胺)为原料与1，3-磺酸内酯反应合成了一系列含有羟基和磺酸基双官能团的内盐，并将所得到的内盐分别与三种强酸(对甲苯磺酸，三氟磺酸，甲磺酸)反应，成功地合成了双功能化室温离子液体，并通过红外光谱、核磁氢谱测定，证实了内盐和双功能化离子液体的结构。

On sand packs consisting of 100 cm~3 quartz of particle size 0.3—0.6 mm, 2 mL kerosene, 1 mL produced water and several drops of isopropyl alcohol, the formulation of LFAR sand consolidation fluid is studied on the basis of the experimental data of compression strength and permeability of the consolidated sand packs and established as follows: 5.0 g LFAR; 0.5 g paratoluene sulfonic acid as curing agent; 5.0 g butyl acet...

在由100cm3粒径0.3～0.6mm的石英砂、2mL煤油、1mL油田污水、几滴异丙醇组成的固砂模型上，根据固结砂的抗压强度和渗透率筛选出了糠醇聚合物固砂剂各组分的用量：糠醇聚合物5g，固化剂对甲苯磺酸0.5g，稀释剂醋酸丁酯5g，后固化剂NaCl+HCl溶液100mL，预冲洗液80mL，后冲洗液80mL。

PANSA nanoparticles were synthesized by oxidative copolymerization of aniline and 2-methoxyaniline-5-sulfonic acid in 1.0 mol/L HCl aqueous solution with ammonium peroxydisulfate as oxid...

PANSA纳米颗粒通过化学氧化聚合法，在无乳化剂或稳定剂存在下，以过硫酸铵为氧化剂，在1.0m ol/L盐酸水溶液中由苯胺与2-甲氧基苯胺-5-磺酸合成得到。

Results: Ghrelin ameliorated significantly the clinical and histopathologic seerity of the trinitrobenzene sulfonic acid-induced colitis; abrogating body weight loss, diarrhea, and inflammation; and increasing surial.

结果：Ghrelin能够明显改善三硝基苯磺酸诱导的小鼠结肠炎的临床和组织病理学改变；能够消除小鼠的体重减轻、腹泻和炎症；并且能增加小鼠生存率。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。