Self-healing polyester elastomer with tuning toughness and elasticity through intermolecular quadruple hydrogen bonding

Kang, Feifei; Yang, Yan; Wang, Wenpin; Li, Zhibo

doi:10.1016/j.eurpolymj.2022.111794

Cited by 14 publications

(8 citation statements)

References 32 publications

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“…12,13 Extrinsic polymers utilize external implementations to realize self-healing, such as microcapsules, [14][15][16][17][18] microvascular networks [19][20][21][22][23] and thermoplastics. [24][25][26] While, the intrinsic polymers themselves poses the ability to heal based on reversible chemical bonds or intermolecular interactions, 27 such as transesterification, [28][29][30][31][32] Diels-Alder (D-A) reaction, [33][34][35][36][37][38][39] disulfide exchange, [40][41][42] imide exchange, [43][44][45] hydrogen bonding, [46][47][48][49][50] etc. Owing to the excellent capability of selfhealing polymers in extending the service life of materials, the relevant research has been flourishing in recent years.…”

Section: Overviewmentioning

confidence: 99%

Intrinsic and extrinsic self‐healing fiber‐reinforced polymer composites: A review

Wang,

Tang,

Chen

et al. 2023

Polymer Composites

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With their high specific modulus, high specific strength and designability, fiber‐reinforced polymer (FRP) composites have replaced or surpassed traditional metallic materials in a wide range of applications. However, the polymer matrix of commonly used FRP composites is usually a thermosetting polymer that is difficult to rework once formed, which implants a substantial challenge for the repair and recycling of composites. Self‐repair, as an emerging method of repairing polymer‐based materials, has the advantages of simplification, high efficiency and repeatability against traditional repair methods. Research on self‐healing polymer materials is developing rapidly and becoming more systematic. With the development of self‐healing polymer, polymer‐based composites with self‐healing capabilities are becoming possible. This paper reviews the current development of self‐healing polymers in recent years, with specific emphasis on their applications in FRP composites. According to the difference in healing mechanisms, the self‐healing polymer composites are split into two categories, intrinsic and extrinsic ones. The essential concepts and different types of intrinsic and extrinsic self‐healing composites are first introduced. Then, their pros and cons are discussed, respectively. Finally, the perspectives of intrinsic as well as extrinsic self‐healing FRP composites are put forward.Highlights Development of self‐healing fiber‐reinforced polymer composites. Extrinsic and intrinsic self‐healing fiber‐reinforced polymer composites. Pros and cons of self‐healing fiber‐reinforced polymer composites. Perspectives of self‐healing fiber‐reinforced polymer composites.

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Section: Overviewmentioning

confidence: 99%

Intrinsic and extrinsic self‐healing fiber‐reinforced polymer composites: A review

Wang,

Tang,

Chen

et al. 2023

Polymer Composites

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“…Polydimethylsiloxane (PDMS) elastomers with excellent high and low temperature resistance, chemical resistance, good biocompatibility and excellent dielectric properties have a wide application value in many fields such as electronic devices, medical health, and surface protection 1–3 . In the course of long‐term use, folding and scratching can cause mechanical damage to the elastomer, thus reducing its stability and durability 4–6 . Therefore, the introduction of self‐healing properties in PDMS elastomers can not only improve its utilization value and save costs but also greatly reduce the safety problems caused by material damage.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] In the course of long-term use, folding and scratching can cause mechanical damage to the elastomer, thus reducing its stability and durability. [4][5][6] Therefore, the introduction of self-healing properties in PDMS elastomers can not only improve its utilization value and save costs but also greatly reduce the safety problems caused by material damage.…”

Section: Introductionmentioning

confidence: 99%

A super‐stretched self‐healing silicone elastomer based on high molecular weight polydimethylsiloxanes through intermolecular quadruple hydrogen bonding

Lang

Wang

et al. 2023

Polymers for Advanced Techs

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Supramolecular silicone elastomer is a promising material for sustainable development. Here, quadruple hydrogen bonded ureidopyrimidinone (UPy) units were grafted onto high molecular weight polydimethylsiloxanes (PDMS), providing a novel supramolecular silicone elastomer. The high molecular weight PDMS precursor was prepared through a cyclic trimeric phosphazene base catalyzed ring‐opening polymerization of Octamethylcyclotetrasiloxane (D4) and tetravinyltetramethylcyclotetrasiloxane (V4) with a well‐controlled vinyl content. Its side chains were modified by hydroxyl groups via a thiol‐ene reaction. Then UPy units were further grafted on the side chain of high molecular weight PDMS by the isocyanate‐hydroxy reaction. The mechanical and self‐healing properties of the elastomer can be controlled by adjusting the molecular weight of PDMS and the amount of UPy units. The obtained PDMS elastomers displayed excellent stretchability (elongation at break of 1513%), good self‐healing efficiency (76% at 60°C for 2 h), and high resilience (elastic recovery of 93% under 300% strain cyclic stretching).

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“…The obtained elastomers had super-stretching, self-healing, recyclability, and reprocessing. Our group designed high-performance polyester elastomers cross-linked by quadruple hydrogen bonding between UPy units . The elastomers show high mechanical strength, good elongation at break, and excellent self-healing properties.…”

Section: Introductionmentioning

confidence: 99%

“…Our group designed high-performance polyester elastomers cross-linked by quadruple hydrogen bonding between UPy units. 32 The elastomers show high mechanical strength, good elongation at break, and excellent self-healing properties. Therefore, the introduction of UPy self-complementary quadruple hydrogen bonding units into polymer chains is a convenient and efficient method to construct high-performance elastomers.…”

Section: Introductionmentioning

confidence: 99%

Tough and Recyclable Polybutadiene Elastomer Based on Quadruple Hydrogen Bonding

Kang

Wang

et al. 2023

ACS Appl. Polym. Mater.

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The commercially available 1,2-polybutadiene (1,2-PB) contains highly reactive CC bonds and has excellent machinability, which is an ideal raw material for preparing thermoplastic elastomers. The preparation of supramolecular cross-linked 1,2-PB thermoplastic elastomer with good recyclability and excellent mechanical properties has promising applications. Here, the 1,2-PB elastomers (UPB elastomers) were prepared by conjugating a few percent 2-ureido-4[1H]-pyrimidinone (UPy) self-complementary quadruple hydrogen bonding units onto the high molecular weight (M n) 1,2-PB chains via the thiol-ene click reaction. The used 2-(mercaptoethyl-ureido)-pyrimidinone derivative (UPy-SH) with a branched alkyl group had good compatibility with 1,2-PB in organic solvent contributing to a high transparency of recyclable UPB elastomers. The cross-linking density of UPB elastomers can be conveniently adjusted by varying the UPy content, which ultimately determined the mechanical properties of resulting supramolecular elastomers. Abundant chain entanglements formed by 1,2-PB chains with a high M n of 455 kDa and strong quadruple hydrogen bonding networks formed by side UPy units endowed UPB elastomers with excellent mechanical properties and damping properties. It was found that sample UPB-2 containing 2 mol % UPy units showed a tensile strength of 13.4 MPa, a high elongation at break of 1167%, a high elastic recovery of 89% (under large tensile deformation of 400%), a high peak tan δ value (tan δmax) of 1.4, and an effective damping temperature range width of 30.6 °C. Moreover, UPB elastomers have good recyclability given the noncovalent cross-linking networks. This effective and universal strategy provides some insights into the design of physically cross-linked high-performance 1,2-polybutadiene elastomers.

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Self-healing polyester elastomer with tuning toughness and elasticity through intermolecular quadruple hydrogen bonding

Cited by 14 publications

References 32 publications

Intrinsic and extrinsic self‐healing fiber‐reinforced polymer composites: A review

Intrinsic and extrinsic self‐healing fiber‐reinforced polymer composites: A review

A super‐stretched self‐healing silicone elastomer based on high molecular weight polydimethylsiloxanes through intermolecular quadruple hydrogen bonding

Tough and Recyclable Polybutadiene Elastomer Based on Quadruple Hydrogen Bonding

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