查询词典 sulfur ether

Co condensation type polyamides were prepared by using 1,2 dihydro 2 (4 aminophenyl) 4 [4 (4 aminophenoxyl) phenyl] phthalazin 1 one and 4,4′ diamino biphenyl ether or 4,4′ diamino biphenyl methane as the co diamine monomers and aromatic diacid as the co condensation monomer.

采用 1 ，2 -二氢-2 -( 4-氨基苯基)-4 -[4 -( 4-氨基苯氧基)-苯基 ]-二氮杂萘-1 -酮、4 ，4′-二氨基二苯醚、4 ，4′-二氨基二苯甲烷为共缩聚二胺单体与对苯二甲酸进行共缩聚反应，制备共缩聚型聚酰胺。

Chapter four. Two glucosamide-based trisiloxane Gemini surfactants which were connected with the short carbon chain dialcohol diglycidyl ether spacer were synthesized and their properties were determined. These compounds were structurally characterized by their 1H and 13C NMR spectra and elemental analysis.

界面性能通过K12表面张力仪测定，在临界聚集浓度CAC为1一3、10一5时可以显著地降低水的表面张力值至约21 mN/m，比连接基为低碳链二缩水甘油醚的略低，其CAC值随着乙氧基数的增加而增加，其CAC值比相应的单体低1~2个数量级，而且有两个CAC值。

Benzyl acetate was synthesized with dibenzyl ether and carboxylic anhydrides as raw material and solid super acid SO 2-_4/TiO_2 as catalyst.

以固体超强酸SO2 -4/TiO2 为催化剂，二苄醚和乙酸酐为原料合成乙酸苄酯，并考察了影响反应的主要因素。

Two monomers,bispmpargyl ether of bisphenol-Aand 4,4'-biphenyl dibenzyl azide were synthesized and characterized with FT-IR,1H-NMR and elementary analysis.

合成了两种单体双酚A二炔丙基醚与4，4′-联苯二苄叠氮，研究了一种新的低温聚合体系——双酚A二炔丙基醚与4，4′-联苯二苄叠氮在烘箱中的本体聚合行为。

Polyether based polyurethanes are among the most interested polymers which have been used suitably for the biomedical applications, especially in cardiovascular system. In order to meet the requirements of the artificial heart program in our college, two sorts of polyether based polyurethane elastomers, PU-BD and PU-MC, were synthesized both based on prepolymer formed by the reaction of polytetramethylene ether glycol and diphenyl methane-4, 4′-diisccyanate, with 1, 4-butanediol and 3, 3′-dich...

本文介绍了两种聚醚型聚氨酯弹性体PU—BD和PU—MC的合成路线，两种弹性体的物理机械性能(曲挠、抗张强度、伸长率等)的测试结果，两种弹性材料的生物相容性试验(凝血时间，慢性组织相容性、细胞毒性等)及其结果、各种试验结果表明，这两种聚氨酯弹性材料的耐曲挠性能和生物相容性都已达到现阶段人工心脏研究工作的要求，为两种有希望的医用高分子材料。

More diethyl ether (100 mL) was added, and the slurry was stirred for 30 min at room temperature.

更多乙醚（ 100毫升）加入，和泥浆是搅拌30分钟在室温下。

The connectors 2 and 5 have high thermal stability, but their solubility in most organic solvents, such as THF or diethyl ether, is very limited.

连接器2和5有高耐热性，但他们的可溶性在多数有机溶液，例如THF或二乙基醚，是非常有限的。

Reflux gently for 6 h ± 30 min. Allow sufficient time for the diethyl ether to cool.

缓慢回流6 h ± 30 min。然后让乙醚完全冷却。

Samples from different parts of 6 pigs was soaked in saline and grinded,then extracted with diethyl ether.

样品取自添加瘦肉增长素饲料喂养的 6头猪的不同部位，经生理盐水浸泡后，研磨成乳糜状，用乙醚提取。

Secondly, 2-trichloroacetylpyrrole were synthesized in the diethyl ether anhydrous at room temperature.

以无水乙醚为溶剂，摩尔比为1：1的N-烷基吡咯和三氯乙酰氯，在常温下进行反应，得到2-三氯乙酰基吡咯。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。