✦ LIBER ✦

The solubility parameters of aromatic polyamides

✍ Scribed by Shaul M. Aharoni

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 358 KB
Volume: 45
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1992.070450507

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✦ Synopsis

The degrees of swelling of rigid aromatic polyamide networks in various solvents, nonsolvents, and solvent mixtures were used to determine their solubility parameters. This was made possible because of the amorphous nature of the rigid networks and the low levels of intersegmental H-bonding. The solubility parameters are: 6 = 23.0 (MPa) "', 6d = 18.0 (MPa)'/', 6, = 11.9 (MPa)'/', and& = 7.9 (MPa)"'. Thedeterminedvaluesarebelieved to be good approximations of the solubility parameters of stiff linear aromatic polyamides, because of the essential identity of their structure and the stiff segments in the networks.

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