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Preparation, spectroscopic and catalytic studies of poly(1,4-phenylenemethylidynenitrilo-1,4-phenylenenitrilomethylidyne) protonated with selected heteropolyacids

✍ Scribed by E Stochmal-Pomarzańska; M Hasik; W Turek; A Proń

Book ID: 104423235
Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 709 KB
Volume: 114
Category: Article
ISSN: 1381-1169
DOI: 10.1016/s1381-1169(96)00326-3

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✦ Synopsis

Poly( 1,4-phenylenemethylidynenitrilo-1,4-phenylenenitrilometbylidyne), (PIM), i.e. polyimine obtained via condensation of p-phenylenediamine and terephtalaldehyde, has been prepared and protonated with selected Keggin type heteropolyacids (H,PMo,,O,, and H,PW,,O,). Both, unprotonated and protonated PIM have been characterized by IR spectroscopy, X-ray diffraction measurements and thermal studies. Heteropolyacids inserted into PIM matrix preserve their structural identity. PIM-heteropolyacids systems exhibit high thermal stability. They are catalytically active in isopropanol conversion showing enhanced redox activity.

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