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22. High strength, high-modulus graphite fibers: a review (Plenary Lecture)

✍ Scribed by H.M Ezekiel


Publisher
Elsevier Science
Year
1969
Tongue
English
Weight
112 KB
Volume
7
Category
Article
ISSN
0008-6223

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## Abstract __p__‐Phenylene oxadiazole/N‐methyl hydrazide copolymers were prepared by polymerization of terephthalic acid, dimethyl terephthalate, and hydrazine sulfate in fuming sulfuric acid, and coagulation of the polymer was obtained in aqueous sulfuric acid. Fibers spun from these copolymers h