Effects of Macromonomeric Length of Ureidopyrimidinone-Induced Supramolecular Polymers on Their Crystalline Structure and Mechanical/Rheological Properties

Jang, Soon Ho; Lee, Junhaeng; Chung, Jaewoo; Kim, Seong Hun

doi:10.1007/s13233-019-7149-6

Cited by 4 publications

(5 citation statements)

References 33 publications

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“…Dynamic supramolecular interactions, including host-guest interactions, metal-ligand interactions [88][89][90][91], ionic interactions [37,[59][60][61], and hydrogen bonding [12,[52][53][54][55][56][57][58], have been utilized as self-healing moieties. These interactions are advantageous because they can occur under mild conditions, thereby enhancing the applicability of self-healing materials.…”

Section: Self-healing Based On Supramolecular Interactionsmentioning

confidence: 99%

“…Hydrogen bonding is a straightforward and effective supramolecular interaction for achieving self-healing capabilities [12,[52][53][54][55][56][57][58]. Hydrogen bonds are formed between a partially positive hydrogen atom bound to a relatively electronegative atom and the unpaired electrons of highly electronegative atoms (F, O, and N), with bond strengths ranging from 1 to 40 kcal/mol.…”

Section: Hydrogen Bond Interactionsmentioning

confidence: 99%

“…This study showed significant enhancements in Young's modulus, tensile strength, and toughness when UPy units were integrated. UPy is a potent group capable of forming quadruple hydrogen bonds, which is a notable advancement considering that most hydrogen bonds consist of single to double bonds [58]. The hydrogen bonding-based self-healing system effectively reconciles the trade-off between self-healing and mechanical strength.…”

Section: Hydrogen Bond Interactionsmentioning

confidence: 99%

“…When damage occurs from external stimuli such as heat [11,12,14], water [37][38][39], and light [40][41][42], a reversible mechanism is triggered, facilitating the repairing process analogous to the operation of a zipper. Various reversible chemical reactions and supramolecular interactions, including disulfide metathesis [13,[43][44][45][46][47][48], the Diels-Alder reaction [11,14,[49][50][51], hydrogen bonding [12,[52][53][54][55][56][57][58], and ionic interactions [37,[59][60][61], serve as representative mechanisms in intrinsic self-healing materials. Theoretically, intrinsic self-healing materials offer the crucial advantage of performing unlimited self-healing cycles.…”

Section: Introductionmentioning

confidence: 99%

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Properties and Applications of Self-Healing Polymeric Materials: A Review

Choi,

Noh,

Kim

et al. 2023

Polymers

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Self-healing polymeric materials, engineered to autonomously self-restore damages from external stimuli, are at the forefront of sustainable materials research. Their ability to maintain product quality and functionality and prolong product life plays a crucial role in mitigating the environmental burden of plastic waste. Historically, initial research on the development of self-healing materials has focused on extrinsic self-healing systems characterized by the integration of embedded healing agents. These studies have primarily focused on optimizing the release of healing agents and ensuring rapid self-healing capabilities. In contrast, recent advancements have shifted the focus towards intrinsic self-healing systems that utilize their inherent reactivity and interactions within the matrix. These systems offer the advantage of repeated self-healing over the same damaged zone, which is attributed to reversible chemical reactions and supramolecular interactions. This review offers a comprehensive perspective on extrinsic and intrinsic self-healing approaches and elucidates their unique properties and characteristics. Furthermore, various self-healing mechanisms are surveyed, and insights from cutting-edge studies are integrated.

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Section: Self-healing Based On Supramolecular Interactionsmentioning

confidence: 99%

Section: Hydrogen Bond Interactionsmentioning

confidence: 99%

Section: Hydrogen Bond Interactionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Properties and Applications of Self-Healing Polymeric Materials: A Review

Choi,

Noh,

Kim

et al. 2023

Polymers

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“…Supramolecular polymers, as a type of novel materials, were widely researched recently [2]. These polymers combine supramolecular chemistry and polymer science, and they possess many unique characteristics.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Linear Polyisoprene Supramolecular Elastomers Based on Quadruple Hydrogen Bonding

2020

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Supramolecular elastomers based on quaternary hydrogen bonding of ureido-pyrimidinone (UPy) groups own special properties such as reversibility, self-healing, and good processability, which can be used in many special fields. In this paper, a novel type of linear polyisoprene supramolecular elastomer (LPSE) was prepared via anionic polymerization by deliberately introducing hydroxyl, isocyanate, and UPy groups into the ends. The formation of supramolecular structure showed significant effects on the microphase structures of LPSE, which was characterized by Fourier-transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), hydrogen nuclear magnetic resonance (1H-NMR), and dynamic mechanical analysis (DMA). Results showed that the introduction of UPy groups played a certain role in the improvement of the thermal stability, toughness, and tensile strength of the elastomer. Moreover, from self-healing tests, the hydrogen bonds of UPy showed dynamic characteristics which were different from covalent sacrificial bonds and exhibited the reassociation phenomenon. This study can not only extend our understanding of the toughening effect of strong hydrogen bonds, but also help us to rationally design new and tough elastomers.

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