polar aprotic solvents 极性非质子溶剂 preferential solvents 选择溶剂 aprotic solvent 疏质子溶剂 chemical solvents 化学熔剂 double solvents 复合溶剂,复溶剂 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】 ...
1.Dimethyl sulfoxide (CAS NO. 67-68-5) is an important polar aprotic solvent. 2.It is widely used to strip photoresist in TFT-LCD 'flat panel' displays and advanced packaging applications (such as wafer-level packaging / solder bump patterning). 3.It also used ...
Polyarylene sulphide-sulphonic acids which are soluble in polar aprotic solvents are new. Also claimed is the prepn. of the acids, comprising completely dissolving the polyarylene sulphide in chloro sulphonic acid, opt. adding oleum or acetic anhydride, and then precipitating the prod. in an aq...
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 polar solvents can be further be subdivided into two categories:The polar aprotic solvents are ...
Such interpolymer complex formations were examined in several protic and aprotic solvents. The obvious relationship between the complex formation and the dielectric constant of the solvent was eludicated. The effect of hydrophobic interactions ... H Ohno,K Abe,E Tsuchida - 《Die Makromolekulare Chem...
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 ...
Herein, we report an approach to produce levoglucosenone (LGO) from cellulose in yields up to 51% under mild reaction conditions (170–230 °C; 5–20 mM H2SO4) using polar, aprotic solvents such as tetrahydrofuran (THF). LGO can be used to make a wide variety of chemicals from biomass...
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...
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...