Fabrication of Poly(p-phenylenebenzobisoxazole) Film Using a Soluble Poly(o-alkoxyphenylamide) as the Precursor
| Autor: | Tsuyohiko Fujigaya, Naotoshi Nakashima, Yusuke Saegusa, Takahiro Fukumaru |
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| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Solid-state chemistry Fabrication Materials science Polymers and Plastics Evolved gas analysis business.industry Organic Chemistry Polymer Characterization (materials science) Inorganic Chemistry chemistry.chemical_compound Pyrolysis–gas chromatography–mass spectrometry chemistry Chemical engineering Polymer chemistry Materials Chemistry Microelectronics Terephthaloyl chloride business |
| Zdroj: | Macromolecules. 47:2088-2095 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/ma4024526 |
| Popis: | Poly(p-phenylenebenzobisoxazole) (PPBO) is a polymer having the most excellent thermal properties among the organic polymers reported to date, and the design and the preparation of PPBO with the desired shape and form are expected to provide novel PPBO-based devices and materials in the fields of automobiles, aerospace, microelectronics, etc. We here describe the fabrication and characterization of PPBO films via the solution-casting and successive thermal conversion of its precursor, alkyl-substituted hydroxypolyamides (poly(o-alkoxyphenylamide)s) that were synthesized by a low-temperature polycondensation reaction of dialkoxydiaminobenzene with terephthaloyl chloride in N-methylpyrrolidone. The formation mechanism of the thermal conversion was carefully investigated based on the analyses of the results using TGA, IR, pyrolysis gas chromatography mass spectrometry (Py-GC/MS), and evolved gas analysis GC/MS (EGA-GC/MS) measurements. A transparent PPBO precursor film provided a PPBO film after thermal trea... |
| Databáze: | OpenAIRE |
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