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Characterization and conformation of aromatic polyamides: poly(1,4-phenylene terephthalamide) and poly(p-benzamide) in sulphuric acid

โœ Scribed by M. Arpin; C. Strazielle


Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
770 KB
Volume
18
Category
Article
ISSN
0032-3861

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Dynamic birefringence and conformation o
โœ V.N. Tsvetkov; I.N. Shtennikova; T.V. Peker; G.I. Kudriavtsev; A.V. Volokhina; V ๐Ÿ“‚ Article ๐Ÿ“… 1977 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 288 KB

Flow birefringence (FB) for samples of poly-p-phenylene terephthalamide (PPPhTPhA) dissolved in sulphuric acid has been investigated; intrinsic viscosities [~/] of the solutions have been measured. Characteristic values of FB [n] and orientation angles [X/9] of the solutions were determined. Coeffic