The polar solvents can be further be subdivided into two categories:The polar aprotic solvents are ...
Glycidyl derivatives of compounds containing -OH, -NH2, -COOH group or mixture thereof are prepared by reacting in the presence of a mixture of solvents, at least one of which is a polar aprotic solvent, an excess of an epihalohydrin with a compound containing one or more -OH, -NH2, -...
Identify the following solvents as polar protic (PP) , polar aprotic (PA), nono-polar protic (NPP) or non-polar aprotic (NPA) View Solution Knowledge Check Question 1 - Select One Which of the following is polar aprotic solvent ? ADMSO BCrown ether CDMG DAll of theseSubmit Question ...
of the polymer in a solvent which is chemically inert to the polymer (e.g. concentrated sulphuric acid); forming a film of the solution in sheet or hollow form; and contacting the film with a non-solvent (e.g. more dilute sulphuric acid or acetic acid) thereby to precipitate the film....
Which is a polar aprotic solvent? a. 2-methyl-2-propanol b.CH_3CH_2CH_2OCH_2CH_2CH_3 c.NH_3(I) d.2-methylhexane e.CCI_4 Identify the alkyl halide that reacts the fastest in an S_N1 reaction. A) 2-chloro-2-methylpropane. B) 2-chlorobutane. C) 1-chlorobutane....
Polar aprotic solvent: DMSO Activators used=D-limonene and ethyl 3-ethoxypropionate of formula C2H5O—CH2CH2CO2C2H5, hereinafter denoted by EEP. Cellulose thickener=cellulose thickener sold by Dow Chemical Co. under the name Methocell 311.
The 4-chloro-2-butenylether thus formed is reacted with a peracid such as meta-chloroperoxybenzoic acid in a solvent such as chloroform or methylene chloride at temperatures of 40° C. to 60° C. Treatment of the resulting product with an alkali metal hydroxide in a solvent mixture such ...
Glycidyl derivatives of compounds containing -OH, -NH2, -COOH group or mixture thereof are prepared by reacting in the presence of a mixture of solvents, at least one of which is a polar aprotic solvent, an excess of an epihalohydrin with a compound containing one or more -OH, -NH2, -...
The present invention is characterized in that the aromatic polymer is in the form of a powder having a d 90 of 20 m or less and the aqueous coating composition further comprises a polar aprotic solvent in a content of more than 0% by weight and 25% by weight or less Free, amine-...
[Also in Divisions H3-H5] Compounds of the Formula A where R 1 and R 2 are ethyl or propyl, n is 4, m is 2 or 3 and X is a mono-anion such as chlorate or tetrafluoroborate, are prepared by reacting the compound B with compound C or compound D in a polar aprotic solvent ...