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Vacuum pyrolysis study of graphite-like pyropolymers from 1,4-diphenyl-1-buten-3-yne

✍ Scribed by Sang Chul Shim; Min Chul Suh; Dong Seok Kim

Book ID: 102658688
Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 606 KB
Volume: 34
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19961115)34:15<3131::aid-pola4>3.0.co;2-#

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✦ Synopsis

SYNOPSIS

1,4-Diphenyl-l-buten-3-yne was metathesis polymerized over NbC15-or TaCl5-based catalysts followed by pyrolysis to obtain graphite-like pyropolymers. The brown metathesis polymer, poly( 1,4-diphenyl-l-buten-3-yne), has the structure of fully conjugated backbone and was annealed a t 250°C to obtain partially crosslinked polymer which showed 20% increase of carbon residue on pyrolysis over 400°C than the pyrolyzed poly(l,4-diphenyl-1-buten-3-yne) without annealing. The polymers were characterized by GPC, EA, NMR, XPS, TGA, DSC, FT-IR, laser-Raman, x-ray diffraction, and SEM studies. 0 1996 John Wiley & Sons, Inc.

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