Examples of 'quaternization' in a sentence
Meaning of "quaternization"
Quaternization refers to the process of converting a molecule or compound into a quaternary ammonium salt, often done by introducing a fourth radical to an ammonium ion
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- quaternarization
How to use "quaternization" in a sentence
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quaternization
Combinations of quaternization and neutralization can be used.
Cationicity is an indication of the degree of quaternization of the material.
The quaternization is carried out overnight at room temperature.
Reagents used in the quaternization reaction.
Quaternization reaction with an alkylation agent.
And mixtures of quaternization products thereof.
Quaternization of the compound obtained in the first step.
The charged sites may be formed by quaternization or by hydrogen protonation.
The quaternization of such a polymer was carried out as follows.
Dry blending process for the quaternization of polyvinyl alcohol.
The quaternization is generally carried out in a suitable solvent.
Quaternary ammonium or quaternary amine salts are produced by a quaternization reaction.
Suitable quaternization agents are detailed below.
The second step is quaternization.
Quaternization may be achieved by any known quaternization method.
See also
These compounds are then quaternized according to known conventional quaternization methods.
The degree of quaternization can be expressed as a ratio or as a percentage.
Water or oil soluble or dispersible products may be obtained by such quaternization.
Quaternization can be achieved by methylation of a tertiary nitrogen atom.
As preferred alkyl halides the alkyl chlorides are used for quaternization.
Quaternization is preferably achieved by reaction with dimethyl sulfate.
These modifications may result in permanent quaternization of polyalkyleneimine backbone nitrogen atoms.
The quaternization is allowed to take place overnight at room temperature.
The tertiary amine functions are then transformed into ammonium functions by quaternization.
Preferably the quaternization is performed in water.
The acrylic polymers and copolymers and cellulose ethers are cationically modified vía quaternization.
Quaternization reaction of the heterocyclic nucleus is subsequently carried out.
The modification may result in permanent quaternization of the polyethyleneimine backbone nitrogen atoms.
This quaternization step is known to those skilled in the art.
The polymer is crosslinked which can be followed by quaternization of any remaining alkylamino groups.
Direct quaternization of the amine.
Is usually incorporated in the parent benzazole molecule prior to quaternization with an alkylating agent.
Quaternization of a naphthyridine followed by reduction gives a benzyl protected tetrahydronaphthyridine.
The patent examples do not mention any yield of quaternization with methyl bromide.
The quaternization reaction may be carried out without any solvent.
It would desirable to have a material the provides greater flexibility vía the level of quaternization.
An optional conventional quaternization either before or after said esterification step.
Neutralization agents include acids having a sufficient acid strength to attain the desired quaternization.
The quaternization of pyridine with an appropriately substituted bromoacetophenone gives the pyridinium.
This invention also envisions the quaternization of the nitrogen atoms of the present compounds.
This quaternization step produces a mixture of fabric softening actives as described hereinabove.
The green powder obtained was used in the following quaternization step without further purification.
Too low a degree of quaternization does not permit dispersing the addition product correctly.
It is thus desirable to produce TMC having a high degree of quaternization.
The quaternization of the nitrogen groups of these molecules is believed to have a dual purpose.
The counter ion normally results from the quaternization agent but can be exchanged if necessary.
The quaternization agent used can be any quaternization agent known to the skilled person.
Preferably, an alkylating agent is used for the quaternization.
The subsequent quaternization with methyl bromide was performed in acetonitrile at the room temperature.
At a minimum, the chelant is present at the quaternization step.
