Super-tough self-healable multiphasic supramolecular plastic via sequence-biased statistical copolymerization

文献信息

发布日期 2023-11-07
DOI 10.1039/D3TA05808E
影响因子 12.732
作者

Yeong Jun Yu, Haisu Kang, Sung Hyun Kwon, Jae Woo Chung


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摘要

Achieving both mechanical robustness and facile healing in self-healable supramolecular materials remains a challenge. This study presents a complementary design for a self-healable supramolecular plastic material, namely, ureidopyrimidinone (UPy)-end functionalized star poly(ε-caprolactone-co-ε-decalactone) (USPCD), based on the kinetics of sequence-biased statistical copolymerization, which depend on the bulkiness of monomers. The copolymerization results in phase separation, wherein the soft phases bear UPy hydrogen bonds and the hard phases contain crystalline bonds. The soft phases can induce a dynamic exchange of UPy moieties and consequent facile healing, whereas the hard phases can contribute to mechanical versatility. Eventually, the composition and sequence control of repeating units in the USPCD significantly affect the mechanical and healing characteristics. USPCD92, with ∼8 mol% poly(ε-decalactone) (PDL) adjacent to the UPy-end moieties, exhibits a super-tough plastic behavior (∼44 MJ m−3), rather than rubber-like behavior, with an excellent healing performance of ∼99% at 50 °C after 10 min treatment.

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来源期刊

Journal of Materials Chemistry A

Journal of Materials Chemistry A
CiteScore: 19.5
自引率: 4.7%
年发文量: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

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