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Flow birefringence and conformational properties of the molecules of para- and meta-isomers of polyhydroxyphenylbenzoxazoleterephthalamides

โœ Scribed by N.V Pogodina; V.N Tsvetkov; L.V Starchenko; V.N Kolot; G.I Kudryavtsev

Book ID
118968082
Publisher
Elsevier Science
Year
1984
Weight
464 KB
Volume
26
Category
Article
ISSN
0032-3950

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Flow birefringence and flexibility of th
Flow birefringence and flexibility of the molecules of copolymers of para- and meta-aromatic polyamides
โœ V.N. Tsvetkov; N.V. Pogodina; L.V. Starchenko ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 565 KB

Flow birefringence (FB) of solutions of poly-p-phenyleneterephthalamide (PpPhTPhA!, polym-phenyleneisophthalamide (PmPhIPhA) and 13 of their copolymers, with various compositions, has been investigated. The number S of monomer units in a Kuhn segment was determined for all samples from the experimen