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POLYPHENYLENE TEREPHTHALAMIDE

The relative importance of the various factors determining the persistence length in solution and the conformation in the solid state of aromatic polyamides are well illustrated by the differences between the para and the meta form of polyphenylene terephthalamide. Both chains consist of the same planar elements, viz. the phenyl and amide groups. The latter group adopts only the trans conformation in these polymers, whereby the chance of a transition to the cis conformation is extremely small due to a barrier of about 60—80 kJ/mol. Although in both para- and meta-linked chains the same intermolecular interactions exist... [Pg.137]

Polyphenylene- terephthalamide PPTA, PMTA 180 310 90 PBI Flame resistant coatings... [Pg.20]

Aramid Polyphenylene terephthalamides PPTA Kevlar, Technora, Twaron... [Pg.134]

Polyphenylene sulfone, polysulfone Polypropyleneterephthalate (see also PTT) Poly(l,4-phenylene terephthalamide)... [Pg.2169]

See other pages where POLYPHENYLENE TEREPHTHALAMIDE is mentioned: [Pg.267]    [Pg.130]    [Pg.130]    [Pg.422]    [Pg.267]    [Pg.130]    [Pg.130]    [Pg.422]    [Pg.96]    [Pg.245]    [Pg.96]   


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Polyphenylenes

Terephthalamide

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