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A theoretical analysis of the flexibility of polyimides and polyamido-acids

โœ Scribed by T.M. Birshtein; A.N. Goryunov

Book ID
118966262
Publisher
Elsevier Science
Year
1979
Weight
581 KB
Volume
21
Category
Article
ISSN
0032-3950

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Investigation of conversion of polyamido
Investigation of conversion of polyamido acid into polyimide by thermovolumetric analysis
โœ Yu.N. Sazanov; V.A. Sysoev ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 189 KB

Abstraet--Thermovolumetric analysis has shown that conversion of solution of polyamido acid into polyimide occurs in three stages: removal of solvent, dehydrocyclization and, in the case of DMFA as solvent, removal of products of its decomposition. When dimethyl-sulphoxide and methyl pyrrolidone wer