Tailoring Thermomechanical, Shape Memory and Self-Healing Properties of Furan-Based Polyketone via Diels-Alder Chemistry with Different Bismaleimide Crosslinkers.

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Tác giả: Esteban Araya-Hermosilla, Rodrigo Araya-Hermosilla, Ranjita K Bose, Marco Carlotti, Diego Cortés-Arriagada, Guilherme Macedo R Lima, Virgilio Mattoli, Felipe Orozco, Daniela E Ortega, Francesco Picchioni, Andrea Pucci

Ngôn ngữ: eng

Ký hiệu phân loại:

Thông tin xuất bản: Switzerland : Polymers , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 704920

Furan/maleimide dynamic covalent chemistry has been extensively used to fabricate re-workable and self-healing thermosets. Understanding the relationship between crosslinker structure, network dynamics, and material final properties, however, remains a challenge. This study introduces self-healing and shape-memory thermosets derived from furan-functionalized polyketones (PKFU) crosslinked with aromatic bis-maleimides, i.e., 1,1'-(methylenedi-4,1-phenylene)bis-maleimide (BISM1) and bis(3-ethyl-5-methyl-4-maleimidophenyl)methane (BISM2), via a thermally reversible Diels-Alder reaction. Polyketones were chemically modified with furfurylamine through the Paal-Knorr reaction, achieving varying furan grafting ratios. The resulting networks, characterized by ATR-FTIR,
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