nonaqueous solvents 非水溶剂 aprotic liquid laser 质子惰性液体激光器 dipolar aprotic solvent 【化】 偶极非质子溶剂 G H solvents 【化】 G-H(混合)溶剂(G代表乙二醇,H代表烃溶剂,如烃、醇、氯代烃等) fastness to organic solvents 耐有机溶剂牢度 相似...
For the average first semester student, these distinctions come up the most in substitution reactions, where hydrogen bonding solvents tend to decrease the reactivity of nucleophiles; polar aprotic solvents, on the other hand, do not. There are 3 types of solvents commonly encountered: nonpolar, po...
The effect of 21 organic additives (alkanols, alkane diols, dipolar aprotic solvents, alkanes) on the chromatographic behavior (retention, elution strength... Lopez-Grio,Garcia-Alvarez-Coque,MC,... - 《Analytical Chemistry》 被引量: 148发表: 2000年 On the way to redox-molecular sieves as mul...
The present invention is concerned with novel polar solvents and novel electrolytic compositions comprising such solvents, and having a high range of stability, as required for applications in the field of electrochemistry. The present solvents have a highly polar amide function, and preferably combine...
ahese polymers showed good solubility in polar aprotic solvents, such as dimethylacetamide (DMAc), dimethylsulfoxide (DMSO), and NMP. The chemical structures of the polymers were confirmed by FT-IR and 1H NMR spectra. hese聚合物在极性aprotic溶剂显示了好可溶性,例如dimethylacetamide (DMAc),二甲亚砜 ...
It has also been noted thatpolar aprotic solventscan promote activity. These reactions are thought to be fast relative to competingradical polymerization. Suddabyet al.58described the effect of CTAs inN′,N-dimethyl formamide (DMF) as catalytic inhibition.DMFforms a complex with the Co(II) in ...
The title compound (I) reacts with DMF with concomitant elimination of C12 to form the hitherto unknown dichloropyrandione (I I).doi:10.1002/chin.198637201V. P. TALZIS. K. GUDOSHNIKOVL. I. BUSLAEVAA. M. DAVLETSHINAN. O. BEKWILEY‐VCH Verlag GmbHCheminform...
It was shown that polyamic acids form similar complexes with aprotic solvents. The isomeric composition of PMA complexes was investigated and isomerization of PMA in solution under mild conditions was observed.DOI: 10.1002/actp.1984.010350410 被引量: 15 ...
Solvation in Binary Mixtures of Water and Polar Aprotic Solvents: Theoretical Calculations of the Concentrations of Solvent−Water Hydrogen-Bonded Species and Application to Thermosolvatochromism of Polarity Probes.Priscilla L. SilvaErick L. Bastos...
Process for the preparation of the paint removers base polar solvents aproticos and eteres 来自 掌桥科研 喜欢 0 阅读量: 6 申请(专利)号: PT19910099722 申请日期: 1991-12-06 公开/公告号: PT99722A 公开/公告日期: 1992-10-30 申请(专利权)人: ATOCHEM 发明人:...