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Manufacture and properties of fibre based on lactam of 4-aminocyclohexane carboxylic acid

✍ Scribed by A. V. Volokhina; S. I. Murashkina; A. S. Kharitonova; S. S. Tuzhikova; M. Ya. Rolev; G. I. Kudryavtsev

Publisher
Springer US
Year
1971
Tongue
English
Weight
156 KB
Volume
2
Category
Article
ISSN
0015-0541

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## Abstract High molar‐mass aromatic polyamides were obtained from 7,7'‐bis(4‐carboxyphenoxy)‐4,4,4β€²,4′‐tetramethyl‐2,2′‐spirobichroman, a novel dicarboxylic acid monomer, by direct polycondensation reaction in __N__‐methyl‐2‐pyrrolidone (NMP) with various aromatic diamines, using triphenyl phosphi