Examples of 'active hydrogen' in a sentence
Meaning of "active hydrogen"
Refers to the presence of hydrogen atoms that are chemically reactive and can easily participate in chemical reactions. Active hydrogen is often used as a concept in chemistry, particularly in organic chemistry
How to use "active hydrogen" in a sentence
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active hydrogen
Suitable substituents contain no active hydrogen atoms.
The active hydrogen value and viscosity were as shown below.
These functional groups contain active hydrogen.
The active hydrogen values and viscosities were as shown below.
Suitable are in principle active hydrogen atom containing groups.
Suitable vinylaromatic comonomers are those without active hydrogen.
Preferred are the polyfunctional active hydrogen group containing compound.
The presence of salts or biological molecules possessing an active hydrogen.
Active hydrogen gas.
One or more compounds containing a plurality of active hydrogen atoms.
The function of the active hydrogen compound is to provide chain extension.
These polyols include moieties that contain active hydrogen atoms.
These active hydrogen compounds may be used singly or in a combination of two or more.
A novel method of preparing such active hydrogen functional colorants is presented.
Initiators which are generally used are compounds having a plurality of active hydrogen.
See also
X is a residue excluding an active hydrogen atom from the blocking agent.
The solvent is preferably an ordinary organic solvent having no active hydrogen.
Mixtures of active hydrogen components are suitably used to achieve a desired average functionality.
Preferred amines can have a reactive or active hydrogen functionality of two.
Active hydrogen containing groups can particularly react with isocyanate groups.
This avoids an oversupply of active hydrogen which may reduce the selectivity.
The resultant material is a clear polyether having no measurable active hydrogen activity.
Any compound containing active hydrogen can be used as chain transferring agent.
Both primary and secondary amine groups are considered as having one active hydrogen.
Terminal groups coreactive with active hydrogen groups on a curing component are useful.
The active hydrogen sites can be provided by the chain extender and catalyst.
The isocyanate reactive material is broadly any active hydrogen containing material.
The active hydrogen compound can contain hydroxyl groups or primary or secondary amino groups.
This can be accomplished by utilizing a stoichiometric excess of active hydrogen compound or of polyisocyanate.
They contain at least one active hydrogen group and at least one carboxylic acid functionality.
Macromonomers comprising an oligomeric or polymeric moiety may comprise a plurality of active hydrogen groups.
After this researchers thought that active hydrogen could be the triatomic form.
Primary antioxidants intercept and stabilize free radicals by donating active hydrogen atoms.
Examples of suitable compounds containing active hydrogen are compounds containing hydroxyl or amines groups.
A resin used in a clear coat paint comprises a resin containing isocyanate reactive active hydrogen.
Preferably the compound having active hydrogen described above contains alicyclic diamine.
The crosslinker component includes one or more crosslinkers reactive with active hydrogen functionality.
This solution thus contains the active hydrogen in the sense of the present invention.
Such active hydrogen group containing polymer resins are acrylic polymers and modified acrylic polymers.
The region may soon be the first with an active hydrogen transport infrastructure.
An active hydrogen component includes any polyfunctional compound having at least two active hydrogen atoms.
Optionally these epoxides may be reactive with other active hydrogen containing compounds.
Active hydrogen compounds suitable for practicing the invention can be prepared from epoxy resins.
Suitable solvents are organic liquids containing no active hydrogen capable of reacting with the diisocyanate.
Various polymers are prepared from compounds and polymers which contain a plurality of active hydrogen atoms.
Reactive diluents with hyxdroxyl or amine active hydrogen groups can be used in the sealer.
And wherein the coating composition is substantially free of external crosslinkers reactive with active hydrogen.
A suitable class of polyfunctional active hydrogen containing compounds are the polyhydroxyl compounds such as polyols.
The polyurethane formulation of the present invention also include a polyfunctional active hydrogen containing material.
Any starter compound which has active hydrogen atoms can be used in the present invention.
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