TY  - EJOU
AU  - Zhang, Wenxuan 
AU  - Zhao, Zhengchuang 
AU  - Gao, Xiaoting 
AU  - Shen, Wenning 
AU  - Deng, Ruiqin 
AU  - Xing, Zheng 
AU  - Cheng, Huimin 
AU  - Yan, Xinyan 

TI  - Bio-Based Vitrimer Foam of Bis-Glycidyl Dehydroabietylamine/Epoxidized Soybean Oil with Self-Healing and Shape Memory Properties
T2  - Journal of Polymer Materials

PY  - 
VL  - 
IS  - 
SN  - 0976-3449

AB  - High bio-based polymer foams face a critical challenge in balancing mechanical robustness with re-processability and environmental sustainability. In this work, a novel bio-based vitrimer foam was fabricated by integrating rigid rosin-derived Bis-glycidyl dehydroabietylamine epoxy resin (DGDHAA) with flexible epoxidized soybean oil (ESO) within a dynamic covalent network. Sodium bicarbonate served as the foaming agent, N,N-dimethylbenzylamine as the foam stabilizer, triethanolamine as the catalyst, and bis(3-aminopropyl) amine (BAPA) as both the curing agent and reactive diluent. The resulting DGDHAA/ESO-BAPA foams exhibited tunable glass transition temperatures (<i>T<sub>g</sub></i>) ranging from 95.88°C to 98.65°C with increasing BAPA content, along with excellent thermal stability. The optimized formulation achieved a compression resilience of 81.84%, demonstrating outstanding elastic recovery. Moreover, the foams displayed remarkable shape-memory behavior and self-healing capability: after thermal treatment at 120°C for 2 h, the healed specimen could sustain a hanging load of 500 g without fracture. This work demonstrates that the rational combination of rigid rosin-based skeletons and flexible vegetable oil chains within a dynamic covalent network provides an effective strategy for developing high-performance, high bio-based foams with tunable thermal properties, excellent elasticity, self-healing ability, and environmental compatibility.
KW  - Bis-glycidyl dehydroabietylamine; epoxidized soybean oil; thermosetting foams; shape memory; self-healing

DO  - 10.32604/jpm.2026.087801