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p-Phenylenediamine (PPD) is an organic compound with the formula C 6 H 4 (NH 2) 2. This derivative of aniline is a white solid, but samples can darken due to air oxidation. [1] It is mainly used as a component of engineering polymers and composites like kevlar. It is also an ingredient in hair dyes and is occasionally used as a substitute for ...
o-Phenylenediamine (OPD) is an organic compound with the formula C 6 H 4 (NH 2) 2. This aromatic diamine is an important precursor to many heterocyclic compounds. OPD is a white compound although samples appear darker owing to oxidation by air. It is isomeric with m-phenylenediamine and p-phenylenediamine.
Phenylenediamine may refer to: o -phenylenediamine or OPD, a chemical compound C 6 H 4 (NH 2 ) 2 m -phenylenediamine or MPD, a chemical compound C 6 H 4 (NH 2 ) 2
Terephthaloyl chloride (TCL, 1,4-benzenedicarbonyl chloride) is the acyl chloride of terephthalic acid.It is a white solid at room temperature. It is one of two precursors used to make Kevlar, the other being p-phenylenediamine.
R is a divalent organic radical (e.g. a para-phenylene group). A diamine is an amine with exactly two amino groups . Diamines are used as monomers to prepare polyamides , polyimides , and polyureas .
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Names Preferred IUPAC name. N 1,N 1-Diethylbenzene-1,4-diamine. Other names N,N-diethyl-p-phenylenediamine DPD. Identifiers CAS Number. 93-05-0; 3D model .
N-Isopropyl-N′-phenyl-1,4-phenylenediamine (often abbreviated IPPD) is an organic compound commonly used as an antiozonant in rubbers. [1] Like other p-phenylenediamine -based antiozonants it works by virtue of its low ionization energy , which allows it to react with ozone faster than ozone will react with rubber. [ 2 ]