✦ LIBER ✦

Synthesis of aromatic poly(ether ketone)s containing C36 aliphatic unsaturated groups in the main chain

✍ Scribed by Ümit Tunca; Sermin Koc

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 129 KB
Volume: 63
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19970307)63:10<1275::aid-app5>3.0.co;2-h

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✦ Synopsis

Aromatic poly(ether ketone)s (PEKs) were modified with various amount of C36 dimer acid Pripol 1017 obtained from polymerization of unsaturated C18 fatty acids. To obtain modified PEKs, polycondensation was carried out using various dicarboxylic acids with diphenylether at 75ЊC in phosphorus pentoxide/methanesulfonic acid as condensing agent and solvent. The reduced viscosities of polymers are relatively low, up to 0.13 dL/g. PEK with a structure (molar ratio of aliphatic to aromatic segment : 0.33) is soluble in organic polar solvents and can be cast from a tetrahydrofuran solution with cobalt naphthenate air dryer in order to obtain crosslinked film at room temperature.

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