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- W4214878276 abstract "Abstract This article discusses the recent advances in self‐healable polymers that take advantage of shape memory effects (SMEs) in the presence of H‐bonding and van der Waals (vdW) forces. Two general mechanisms that involve interfacial energy and SME‐driven self‐healing responsible for macroscopic wound closure are explored. Interfacial energy‐driven self‐healing involves the formation of a mobile layer at the newly formed interfaces due to the presence of dangling ends or chain slippage, whereas SME recovery is an entropically driven process quantified by viscoelastic length transitions (VLTs) detected in dynamic mechanical analysis (DMA). The presence of highly polar H‐bonding or/and nonpolar vdW interactions plays a significant role in self‐healing. Nonpolar vdW inter‐ or intrachain interactions contribute to SME‐driven recovery by activating entropic energy stored during damage. Owing to their relatively low activation energies, H‐bonding and interchain vdW forces may independently or collectively facilitate self‐healing, and understanding the molecular contributions of these typically interchain nonpolar and polar interactions provides an opportunity for designing polymers in which the perturbation of these ubiquitous interactions will be energetically unfavorable, thus facilitating autonomous self‐healing." @default.
- W4214878276 created "2022-03-05" @default.
- W4214878276 creator A5043001724 @default.
- W4214878276 creator A5069510122 @default.
- W4214878276 creator A5085159332 @default.
- W4214878276 date "2022-03-04" @default.
- W4214878276 modified "2023-10-16" @default.
- W4214878276 title "Shape Memory‐Induced Self‐Healable Polymers" @default.
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