Examples of 'p-phenylene' in a sentence
Meaning of "p-phenylene"
p-phenylene (noun): A chemical compound composed of a benzene ring with two carbon atoms replaced by a phenyl group. It is used in the production of polymers and organic materials
How to use "p-phenylene" in a sentence
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p-phenylene
A poly p-phenylene sulphide film is also suitable.
These conjugated systems contain a p-phenylene moiety.
Examples of the p-phenylene compound include p-dialkyl benzenes.
Yarn of synthetic textile fibres of poly p-phenylene terephthalamide.
P-phenylene diamine and o-aminophenol are used as the dye precursors.
By this expression, there are understood copolyamides having essentially p-phenylene terephthalamide units.
Poly p-phenylene vinylene.
It is possible that it contains several kinds of copolymerization unit other than p-phenylene sulfide.
Aramid fibers typically include polyterephthaloyl p-phenylene diamine fibers and polyisophthaloyl metaphenylene diamine fibers.
A compound according to any preceding claim in which Ar1 represents optionally substituted p-phenylene.
A particularly preferred p-phenylene compound is p-xylene.
This group may be an o - or m-phenylene group but is preferably a p-phenylene group.
Preferably, m-phenylene diamine, p-phenylene diamine, or triaminobenzene can be used.
A thixotropic agent according to claim 4, characterised in that the diamine is p-phenylene diamine.
In a specific embodiment, R is m-phenylene, p-phenylene diarylsulfone, or a combination thereof.
See also
A compound according to claim 6 in which Ar2 represents unsubstituted p-phenylene.
Arylene groups can include phenylene groups, particularly p-phenylene groups, or benzothiazolylene groups.
A compound according to claim 7 in which Ar2 is optionally substituted p-phenylene.
A compound according to claim 3 in which Ar1 represents p-phenylene or p-phenylene substituted by C1-4alkoxy.
A specific value for X which is of particular interest is, for example, p-phenylene.
Furthermore, PPD is p-phenylene diamine.
A method according to any preceding claim wherein A1 is p-phenylene.
Preferred arylene groups include phenylene groups, particularly p-phenylene groups, or benzothiazolylene groups.
A third class of suitable amines comprises the N, N ' hydrocarbon substituted p-phenylene diamines.
Compounds of formula ( Id ) in which Ar1represents unsubstituted p-phenylene are particularly preferred.
The preferred groups are ethylene, trimethylene and tetramethylene and o -, m - and p-phenylene.
A compound according to any preceding claim in which Ar2 represents p-phenylene optionally substituted by S2.
A composition according to Claim 3 wherein R ¹ is methylene and A ¹ is p-phenylene.
Ar2 is preferably unsubstituted p-phenylene.
The third class of suitable amines are the N, N ′ hydrocarbon substituted p-phenylene diamines.
The A1 radical may be a monocyclic radical ; i.e., an unsubstituted or substituted m - or p-phenylene radical.
Component ( a ) Component ( a ) is at least one arylamine-type antioxidant which is a substituted p-phenylene diamine.
As phenylene, Z is for example m-phenylene or p-phenylene.
