✦ LIBER ✦

Synthesis and properties of silicon-containing polyamides

✍ Scribed by I. Sava; M. Bruma; B. Schulz; F. Mercer; V. N. Reddy; N. Belomoina

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 171 KB
Volume: 65
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19970822)65:8<1533::aid-app11>3.0.co;2-x

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✦ Synopsis

A series of aromatic polyamides incorporating silicon together with phenylquinoxaline or with hexafluoroisopropylidene groups has been synthesized by solution polycondensation of a silicon-containing diacid chloride with aromatic diamines having phenylquinoxaline rings or hexafluoroisopropylidene groups. These polymers are easily soluble in polar aprotic solvents, such as N-methylpyrrolidinone and dimethylformamide, and in tetrahydrofurane, and can be solution-cast into thin, transparent films having low dielectric constant, in the range of 3.26 to 3.68. These polymers show high thermal stability with decomposition temperature being above 400ЊC and glass transition temperature in the range of 236ЊC to 275ЊC.

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