Examples of 'quaternary ammonium groups' in a sentence
Meaning of "quaternary ammonium groups"
quaternary ammonium groups: These are positively charged polyatomic ions composed of four organic groups bonded to a central nitrogen atom. They are commonly used in chemistry as surfactants, fabric softeners, and disinfectants due to their ability to disrupt cell membranes and inhibit microbial growth.
How to use "quaternary ammonium groups" in a sentence
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quaternary ammonium groups
Suitable antimicrobial quaternary ammonium groups are defined above.
The polycationic material preferably comprises quaternary ammonium groups.
Amine or quaternary ammonium groups.
At least one silicone containing quaternary ammonium groups.
Quaternary ammonium groups.
The cationized starches comprise quaternary ammonium groups.
Examples of biocidal quaternary ammonium groups are trioctylmethyl ammonium and dicecyldimethyl ammonium.
Amino silicones do not comprise any quaternary ammonium groups.
The quaternary ammonium groups are preferably derived from a quaternary epoxide or a quaternary halohydrin.
Many biocidal polymers are known with quaternary ammonium groups.
The copolymer contains quaternary ammonium groups to which the heparin coating binds.
Any of these may have a low content of quaternary ammonium groups.
The least two quaternary ammonium groups are covalently attached to the polysaccharide backbone.
The subject polymers preferably comprises amino or quaternary ammonium groups.
Higher proportion of quaternary ammonium groups in the copolymer of acrylic and methacrylic acid esters.
See also
quaternary ammonium compounds
quaternary ammonium group
quaternary ammonium salt
quaternary ammonium salts
quaternary ammonium group
quaternary ammonium salt
quaternary ammonium salts
The cationic groups are tertiary amino groups or quaternary ammonium groups.
Quaternary ammonium groups provide strong anion exchange characteristics to the anion exchange medium.
The hydrophilic groups comprise quaternary ammonium groups and amino oxides.
A variety of pendant hydrocarbon chains can be used in conjunction with the quaternary ammonium groups.
Examples of cationic hydrophilic groups are quaternary ammonium groups or acid addition salt groups.
A suitable polymer is a copolymer of acrylic and methacrylic acid esters with quaternary ammonium groups.
In another embodiment the pendant quaternary ammonium groups may be in the terminal positions.
Suitably the functional groups are primary amino groups or quaternary ammonium groups.
The anion exchange resin contains quaternary ammonium groups as the functional groups therein.
There are a number of techniques that can be used to form quaternary ammonium groups.
Suitable antiviral groups include quaternary ammonium groups and other cationic groups such as phosphonium compounds.
It is particularly preferred that the anion exchange resin contain quaternary ammonium groups.
In this case the membranes contain no quaternary ammonium groups and no weakly basic amines.
Attractive results have been achieved with solid materials containing tertiary amine or quaternary ammonium groups.
Examples of cationic groups include tertiary and quaternary ammonium groups and tertiary sulphonium groups.
The preferred ionic moieties are cationic moieties such as quaternary phosphonium and quaternary ammonium groups.
Quaternary ammonium groups are preferred, in particular the trimethylbenzyl ammonium group.
The counteranion of the sulphonate group can also be chosen from quaternary ammonium groups.
Similarly, a pigment containing quaternary ammonium groups can bind to a polymer through acid groups.
Diquaternary ammonium compounds include those compounds that have at least two quaternary ammonium groups.
In Stark, the quaternary ammonium groups are actually part of the polymer backbone.
At least one cationic polymer which contains quaternary ammonium groups in the main chain.
Examples of quaternary ammonium groups defined by NR4R6Y are trimethylammonium chloride and triethylammonium bromide.
One of the hydrolysable polymeric binders described comprises quaternary ammonium groups bound to a polymeric backbone.
The amount of quaternary ammonium groups in the polymer was below 5 %.
Useful stabilising agents include cellulose ethers which contain quaternary ammonium groups and polyalkylene glycols.
The cationic polyelectrolyte is preferably a water-soluble substituted polyolefine containing quaternary ammonium groups.
The content of quaternary ammonium groups was below 5 %.
Suitable R groups also include cationic amines and quaternary ammonium groups.
Croquat I wherein the quaternary ammonium groups comprise a C 12 alkyl group ;.
Rather, it represents the counterions of the quaternary ammonium groups.
However, it will be appreciated that quaternary ammonium groups are a necessary element of polymer ( A ).
An article according to claim 19 wherein the pendant cationic groups are quaternary ammonium groups.
P -- the number of milliequivalents of quaternary ammonium groups per 100 g of polyurethane ; and.
Suitable positively charged groups include, but are not limited to, quaternary ammonium groups.
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