Synthesis of Poly-(p-Phenylenebenzobisthiazole) Used for Manufacture of Thermostable High-Modulus Fibres

The possibility of reducing the duration of synthesis of poly(p-phenylenebenzobisthiazole) (PPBT) from 2,5-diamino-1,4-dimercaprobenzene and terephthalic acid in polyphosphoric acid medium with production of a high-molecular-weight with [η] = 24-29 dl/g is demonstrated. It is shown that with a lower...

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Bibliographic Details
Published in:Fibre chemistry 2002-09, Vol.34 (5), p.319-323
Main Authors: Odnoralova, V N, Kiya-oglu, V N, Goryacheva, N I, Ivanova, A V, Ognev, V I, Platonov, V A, Budnitskii, G A
Format: Article
Language:English
Subjects:
Bacteria
Fibers
Fibres
Spinning
Synthesis
Terephthalic acid
Viscosity
Online Access:Get full text
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Summary:The possibility of reducing the duration of synthesis of poly(p-phenylenebenzobisthiazole) (PPBT) from 2,5-diamino-1,4-dimercaprobenzene and terephthalic acid in polyphosphoric acid medium with production of a high-molecular-weight with [η] = 24-29 dl/g is demonstrated. It is shown that with a lower duration of synthesis of PPBT, polycondensation solutions have a lower viscosity (1500-2000 Pa·sec) at 150-165°C, which facilitates spinning of high-strength and high-modulus fibres.[PUBLICATION ABSTRACT]
ISSN:0015-0541
1573-8493
DOI:10.1023/A:1022106815636