Examples of 'dianhydride' in a sentence
Meaning of "dianhydride"
dianhydride (noun): Dianhydride refers to a type of compound that contains two anhydride groups. This term is commonly used in organic chemistry to describe specific chemical structures
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- Any compound containing two anhydride groups
- Any cyclic product of the condensation of two monosaccharide molecules with the elimination of two molecules of water
How to use "dianhydride" in a sentence
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dianhydride
Pyromellitic dianhydride is the preferred compound.
Kapton synthesis is an example of the use of a dianhydride in step polymerization.
The dianhydride of pyromellitic acid is the preferred compound.
An example of a bisanhydride is pyromellitic dianhydride.
The dianhydride is preferred to be an aromatic compound.
The additive was prepared by reacting pyromellitic dianhydride with pentabromobenzylamine.
The dianhydride of the pyromellitic acid is the most preferred compound.
Filtering the sixth mixture to obtain a substantially pure dianhydride.
Pyromellitic dianhydride is preferred.
Some stabilizer additives prepared from pyromellitic dianhydride are known.
The dianhydride may be added in the form of a masterbatch in polycarbonate resin.
Most preferably the polyfunctional acid anhydride is pyromellitic dianhydride.
The acid dianhydride monomer may include an aliphatic or aromatic tetracarboxylic dianhydride.
Oxydiphthalic acid dianhydride.
The dianhydride is isolated as a molten liquid from the bottom of the wiped film evaporator.
See also
Examples of these include reaction products of tetracarboxylic dianhydride with diamines.
BPDA is a moderately priced dianhydride with good thermal stability and average processing characteristics.
They are typically prepared by the reaction of a tetracarboxylic acid dianhydride with a diamine.
The dianhydride is added to the PET or COPET in the melt state.
Useful polyimide resins are obtained by condensation polymerization between a diamine and a dianhydride.
Among them, pyromellitic dianhydride is more preferred.
The polyamic acid can be obtained through polymerization of a tetracarboxylic acid dianhydride and a diamine.
In both cases, pyromellitic dianhydride is the preferred dianhydride.
The polyamic acid can be prepared through a reaction between a tetracarboxylic dianhydride and a diamine.
Of dianhydride is added and stirring is continued for 1 hour.
Aromatic anhydrides are the preferred chain extending agents and pyromellitic dianhydride is especially preferred.
Deuterated dianhydride monomer corresponding to one of the following formulae,.
It is further within the scope of the invention to employ a dianhydride as reagent B.
More preferably, the dianhydride monomer is benzophenone tetracarboxylic dianhydride.
Maleic anhydride dimerizes in a photochemical reaction to form cyclobutane tetracarboxylic dianhydride CBTA.
Process according to claim 1, wherein the dianhydride is pyromellitic dianhydride.
The dianhydride will preferably be selected from the following list,.
The peptide was coupled to DTPA cyclic dianhydride.
Process according to claim 1, wherein the dianhydride of a tetracarboxylic acid is pyromellitic dianhydride.
Fibres according to claim 1 in which the polyfunctional compound is pyromellitic dianhydride.
Resins according to claim 1 in which the dianhydride is pyromellitic dianhydride.
Examples of tetracarboxylic dianhydrides include pyromellitic dianhydride, benzophenone tetracarboxylic dianhydride, and biphenyl tetracarboxylic dianhydride.
It is further contemplated to employ a dianhydride as reagent B.
PMDA is a " rigid " dianhydride that increases polyuimide Tg at the expense of processing.
The composition according to claim 1, wherein the dianhydride is phthalic dianhydride.
A common name for Matrimid * is the polymer with diaminophenylindane and benzophenone tetracarboxylic dianhydride.
Polyester resin according to claim 1 where the dianhydride is the pyromellitic dianhydride.
EXAMPLE IV LiLo1 was also be prepared by an alternate method using DTPA dianhydride.
Examples of the multianhydrides include pyromellitic dianhydride and styrene-maleic anhydride copolymers.
Pyromellitic dianhydride is essentially used for manufacturing the products ( 1 ).
The process according to claim 2, wherein the organic aromatic dianhydride is pyromellitic dianhydride.
And a dianhydride of general formula,.
The membrane of any of the preceding claims, wherein said dianhydride is an aromatic compound.
The second dianhydride then reacts with the amine ( s ) on the macromolecule, forming another amide bond.
Examples of the multianhydrides include pyromellitic dianhydride and styrene-maleic anhydride copolymers, for instance.
