High-performance poly(benzoxazole/benzimidazole) bio-based plastics with ultra-low dielectric constant from 3-amino-4-hydroxybenzoic acid

• Published in: Polymer degradation and stability Vol. 162; pp. 29 - 35
• Main Authors: Nag, Aniruddha, Ali, Mohammad Asif, Watanabe, Makoto, Singh, Maninder, Amornwachirabodee, Kittima, Kato, Shunsuke, Mitsumata, Tetsu, Takada, Kenji, Kaneko, Tatsuo
• Format: Journal Article
• Language: English
• Published: London Elsevier Ltd 01-04-2019; Elsevier BV
• Subjects: Aromatics; Bio-based plastics; Biomolecules; Biopolymers; Cattle; High-performance; Low k; Mechanical properties; Permittivity; Plastics; Polyamide resins; Polybenzimidazoles; Polybenzoxazoles; Polyethylenes; Polylactic acid; Polymers; Aromatics; Bio-based plastics; Low k; High-performance; Polybenzoxazoles
• ISSN: 0141-3910; 1873-2321
• DOI: 10.1016/j.polymdegradstab.2019.01.036

High-performance bio-based plastics can make a major contribution to environmental sustainability. A series of high-performance poly(2,5-benzoxazole-co-2,5-benzimidazole)s (PBO-co-PBI) bio-based plastic films, were developed using the aromatic biomolecule 3-amino-4-hydroxybenzoic acid and the commercial product 3,4-diaminobenzoic acid. The partially bio-based PBO-co-PBI films exhibit higher thermal and mechanical performance than conventional bio-based polymers such as polyamide 11 or poly(lactic acid). The robust PBO-co-PBI films exhibit lower dielectric constants (εr) than conventional high-performance aromatic polymers, attaining the value comparable to those of polyethylene or polypropylene.
•(PBO-co-PBI)s were derived using bio-monomer 3-amino-4-hydroxybenzoic acid and commercial 3, 4-diaminobenzoic acid.•Aromatic bio-base plastics having high thermo-mechanical stability was developed.•Bio-bases plastic films having low dielectric constants and high volume resistivity were developed.