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 (ε_r) than conventional high-performance aromatic polymers, attaining the value comparable to those of polyethylene or polypropylene.

高性能生物基塑料可以为环境可持续性做出重大贡献。一系列高性能聚（2,5- benzoxazole-的共-2,5-苯并咪唑）S（PBO-共-PBI）基于生物的塑料薄膜，使用该芳香族生物分子的3-氨基-4-羟基苯甲酸开发以及商品3,4-二氨基苯甲酸。与常规生物基聚合物（例如聚酰胺11或聚乳酸）相比，部分生物基PBO - co - PBI膜具有更高的热性能和机械性能。鲁棒PBO-共-PBI薄膜表现出较低的介电常数（ε _{- [R}比传统高性能芳族聚合物），获得比得上那些聚乙烯或聚丙烯的值。