High-Temperature Fiber Research

Ross, Jack H.

doi:10.1177/004051756203200910

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1965

1983

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Cited by 7 publications

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Photodegradative wavelength dependence of thermally resistant organic polymers

Johnson¹,

Tincher²,

Bach³

1969

J of Applied Polymer Sci

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synopsisThe wavelength dependence of photodegradation of three ,,high temperature" a r e matic polyamide polymers has been very accurately determined by means of a fast grating spectrograph used in conjunction with a high pressure xenon arc. One of these polymers, the poly-(isophthalamide) of 4,4'-bis(p-aminophenyl)-2,2'bithiazoleJ was found to be degraded significantly by visible light, especially that of 4140 A, wavelength. Both the poly-terephthalamide of 1,3-bis(3-aminobenzamido) benzene and Du Pont Nomex, also an aromatic polyamide, were damaged primarily by radiation in the near ultraviolet region. Degradation band maxima for these polymers were observed a t 3700 A and 3600 A, respectively. All three thermally resistant polymers were thus found to be degraded by light of much longer wavelength than that which is harmful to other common polymers.

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Photodegradative wavelength dependence of thermally resistant organic polymers

Johnson¹,

Tincher²,

Bach³

1969

J of Applied Polymer Sci

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Factors influencing essential fiber properties

Atlas

Mark

1965

Makromol. Chem.

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The fundamentals of macromolecules are presented with respect to fiber forming materials. The.physical and chemical methods which enable one to alter or modify a given fiber are discussed. The possibilities for the different groups of fiber-types are presented in detail. ZUSAMMENFASSUNG:Die grundlegenden Eigenschaften von Makromolekiilen als faserbildende Substanzen sowie physikalische und chemische Methoden zur Abwandlung der Fasereigenschaften werden diskutiert ; das Verhalten der verschiedenen Gruppen von Fasern wird im einzelnen behandelt.

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