Examples of 'vinylene' in a sentence
Meaning of "vinylene"
Vinylene is a chemical compound containing two vinyl groups, each consisting of two carbon atoms bonded together. It is often used in organic chemistry to create various polymers, plastics, and synthetic materials. Example: The researchers synthesized a new vinylene-based polymer for their experiment
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- The divalent radical, -CH=CH-, formally derived by removing a hydrogen atom from each carbon of an ethylene molecule.
How to use "vinylene" in a sentence
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vinylene
Process to produce polyparaphenylene vinylene or polyparathienylene vinylene polymers.
These vinylidene polymers are isomeric with those produced from vinylene monomers.
Industrially produced vinylene carbonate is usually a yellow to brown liquid.
Said unsaturated linear carbonate is preferably vinylene carbonate.
Q is preferably vinylene or ethynylene.
Among the alkylidene radicals particular mention may be made of the allylene or vinylene radicals.
The additive could be vinylene carbonate, ethylene carbonate or maleic anhydride.
Exemplary alkenylene radicals include vinylene and propylene.
As A, a vinylene group or an ethynylene group is preferred, and particularly preferred is a vinylene group.
Q is preferably vinylene.
On the other hand, shortage of the vinylene carbonate might cause insufficient battery performance.
As examples of alkenylene radicals, particular mention may be made of allylene or vinylene radicals.
The vinylene group means a cis - or trans-vinylene group.
This polyvinyl alcohol includes a carbonyl group and a vinylene group adjacent thereto.
Examples thereof are vinylene group, propenylene group, butadienylene group, etc.
See also
The bullvalene molecule is a cyclopropane platform with three vinylene arms conjoined at a methine group.
Oxidation of the polymer with DDQ affords the naphthalene pendant of polyp-phenylene vinylene.
Therefore, the cyclobutane ring is formed from two vinylene groups by light irradiation.
Scheme 2 may be used to prepare compounds of the invention where A is vinylene.
X is a group of vinylene or azomethine ;.
The cell according to claim 1, in which said unsaturated cyclic carbonate is vinylene carbonate.
In the present invention, the vinylene group refers to a cis - or a trans-vinylene group.
Examples of the cyclic sulfates include glycol sulfate, propylene sulfate, vinylene sulfate and catechol sulfate.
The additive could be vinylene carbonate, ethylene carbonate, fluorinated ethylene carbonate, or maleic anhydride.
Specifically, NVP was shown to copolymerize with vinylene carbonate.
A, An ethylene group, a vinylene group or an ethynylene group.
The compound according to Claim 1, wherein A is an ethylene group or a vinylene group.
Particularly preferred are ethylene, trimethylene, vinylene and O-phenylene, O-phenylene being most preferred.
Y represents a direct bond, a methyleneoxy group, a methylenethio group or a vinylene group ; and.
FIG . 2 illustrates how polyparaphenylene vinylene is prepared by pyrolysis of a precursor P1 ;.
The preferred example of Y is methylene, dimethylmethylene, ethylene, vinylene or oxygen.
Represents the vinylene group between R7 and R8 with the following provisos,.
Poly p-phenylene vinylene.
Preferably, the quantity of vinylene carbonate will be less than 0.1 % by volume, preferably nil.
FIG . 6 shows the infrared spectrum obtained from a polyelectrolyte precursor for polyparaphenylene vinylene ( PPV ) ;.
A compound of claim 1, wherein A is vinylene or a single bond.
Compounds of formula I according to claim 1 or 2, in which Q is vinylene.
Thus polyvinylene fluoride from vinylene fluoride (HFC=CHF).
The compound claimed in claim 1, wherein X is vinylene.
Z is single bond, methylene, ethylene, vinylene or ethynylene ;.
The compound of claim 1 wherein R2 and R3 taken together are vinylene.
X is a bond, an alkylene, or a vinylene radical ;.
A particularly preferred meaning of X1 is C2-C4alkenylene, especially vinylene.
The compound claimed in claim 1, wherein X is vinylene and Y is.
Preferred is C2 to C3 straight alkenylene, for example, vinylene or propenylene.
In particular, when R5 is carboxy, A is more preferably a C1-3 alkylene group, with vinylene being most preferred.
