@Article{jpm.2026.087801,
AUTHOR = {Wenxuan Zhang, Zhengchuang Zhao, Xiaoting Gao, Wenning Shen, Ruiqin Deng, Zheng Xing, Huimin Cheng, Xinyan Yan},
TITLE = {Bio-Based Vitrimer Foam of Bis-Glycidyl Dehydroabietylamine/Epoxidized Soybean Oil with Self-Healing and Shape Memory Properties},
JOURNAL = {Journal of Polymer Materials},
VOLUME = {},
YEAR = {},
NUMBER = {},
PAGES = {{pages}},
URL = {http://www.techscience.com/jpm/online/detail/28213},
ISSN = {0976-3449},
ABSTRACT = {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.},
DOI = {10.32604/jpm.2026.087801}
}