In this work, porous PBAT monoliths were fabricated via a solvent-based thermally induced phase separation (TIPS) method, and the pore morphology was tuned by adjusting the solvent ratio and polymer concentration. Furthermore, annealing treatment significantly enhanced the elasticity of the PBAT monoliths, reducing plastic deformation after 70% compression from 43 to 12%. Mechanistic analysis revealed that annealing improved defective crystals formed during phase separation, leading to enhanced structural integrity and mechanical performance.In this work, porous PBAT monoliths were fabricated via a solvent-based thermally induced phase separation (TIPS) method, and the pore morphology was tuned by adjusting the solvent ratio and polymer concentration. Furthermore, annealing treatment significantly enhanced the elasticity of the PBAT monoliths, reducing plastic deformation after 70% compression from 43% to 12%. Mechanistic analysis revealed that annealing improved defective crystals formed during phase separation, leading to enhanced structural integrity and mechanical performance.
- Ruiqi Zhang
- Yu-I Hsu
- Hiroshi Uyama