Biomass Shape Memory Elastomers with Rapid Self-Healing Properties and High Recyclability

Chen, Zixun; Li, Yingxue; Yao, Cheng

doi:10.1021/acs.biomac.1c00465

Cited by 17 publications

(12 citation statements)

References 48 publications

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“…It is worth noting that S-cPDs present a terrific mechanical strength and elastic recovery ratio in comparison with other reported PAEs (Figure e and Table S5). − …”

Section: Resultsmentioning

confidence: 99%

Dynamic Chemical Cross-Linking and Mechanical Training of Bio-Based Polyamides Fabricate Strong and Recyclable Elastomers

Liu

Zhou

et al. 2022

ACS Sustainable Chem. Eng.

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The integration of superb mechanical performance, good recyclability, and environmental friendliness is of key significance for the practical application of polyamide elastomers. However, the mutually exclusive conflicts among these properties make it challenging to balance them simultaneously. Herein, we describe a facile strategy to synthesize sustainable castor oil-derived polyamide elastomers with robust strength and good recyclability by means of dynamic vinylogous urethane chemistry. Distinctive acetoacetate−amine adducts with thermal-triggered dissociation and reassociation dynamics serve as chemical cross-linking units to provide cross-linking rigidity and reconstruction properties. Meanwhile, a amide hydrogen bonding array induced crystalline-tunable microstructure is employed to store entropic energy during dynamic behavior to achieve polymer system stability. Moreover, the amorphous phase forms stiff crystals when it is stretched through a transition that orders interchain hydrogen bonding, yielding a characteristic of excellent self-strengthening by mechanical training. Due to this property, the prepared polyamide elastomers exhibit high mechanical performance with a tensile strength of up to 156 MPa, an elastic recovery of 94%, and good recyclability with a tensile strength recovery of 95.6%, far superior to those of the reported polyamide elastomers.

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“…It is worth noting that S-cPDs present a terrific mechanical strength and elastic recovery ratio in comparison with other reported PAEs (Figure e and Table S5). − …”

Section: Resultsmentioning

confidence: 99%

Dynamic Chemical Cross-Linking and Mechanical Training of Bio-Based Polyamides Fabricate Strong and Recyclable Elastomers

Liu

Zhou

et al. 2022

ACS Sustainable Chem. Eng.

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“…In the case of the shape memory process, the deformation of a material after 5 min of recovery time returned to about 95% of the original shape. The phenomenon indicated that the internal segments in materials can rapidly respond to temperature changes and accelerate the recovery to their original shape [55]. Furthermore, another example by Li et al [86] confirmed the effect of temperature on the self-healing process of shape memory elastomers as shown in Figure 9.…”

Section: Self-healing Shape Memory Elastomersmentioning

confidence: 78%

“…Moreover, for thermoplastic elastomers, a market research report by MarketsandMarkets™ revealed that the market was worth USD 5.1 billion in 2021, with a compound annual growth rate of 5.8% between 2021 and 2026 (Table 3). [ [50][51][52][53] Poly(ether-b-amide) Moisture Biomedical and industrial applications [54] Polyamide elastomers Thermal Self-healing materials, Intelligent electronic devices, Bionic materials [55] SMEs such as polyurethane and natural rubber typically comprise two regions: amorphous and crystalline. The amorphous region supports the stabilisation and retention of the original shape, and then the deformation of this region induces shape recovery.…”

Section: Polymermentioning

confidence: 99%

“…They almost recovered from damage after the healing process at 130 °C for 3 h. Therefore, a fusing efficiency of 120% was reached [86]. Chen et al [55] presented the preparation of biomass bifunctional polyamide elastomers (BbPEs) from dimer acid (DA), trimer acid (TA), and triethylenetetramine to obtain a shape memory behaviour with self-healing characteristics. Figure 8b shows that the sample can be healed within 2 h indicating a healing efficiency of 50%.…”

Section: Self-healing Shape Memory Elastomersmentioning

confidence: 99%

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Recent Developments in Shape Memory Elastomers for Biotechnology Applications

et al. 2022

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Shape memory elastomers have revolutionised the world since their introduction in the 20th century. The ability to tailor chemical structures to produce a family of materials in wide-ranging forms with versatile properties has propelled them to be ubiquitous. Recent challenges in the end-of-life management of polymeric materials should prompt us to ask, ‘what innovations in polymeric materials can make a strong case for their use as efficient materials?’ The development of smart elastomers that can acquire, convey, or process a stimulus (such as temperature, pressure, electromagnetic field, moisture, and chemical signals) and reply by creating a useful effect, specifically a reversible change in shape, is one such innovation. Here, we present a brief overview of shape memory elastomers (SMEs) and thereafter a review of recent advances in their development. We discuss the complex processing of structure-property relations and how they differ for a range of stimuli-responsive SMEs, self-healing SMEs, thermoplastic SMEs, and antibacterial and antifouling SMEs. Following innovations in SEMs, the SMEs are forecast to have significant potential in biotechnology based on their tailorable physical properties that are suited to a range of different external stimuli.

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“…Temperatures at 0 and 60 C Shape recovery reaches 95% in 5 min. The recovery efficiency is 88.9% [242] Advanced manufacturing technology has been introduced in the structural design at the macroscopic level. This technology encompasses several methods to manufacture elastomeric samples in three and four dimensions.…”

Section: Discussionmentioning

confidence: 99%

Shape memory elastomers: A review of synthesis, design, advanced manufacturing, and emerging applications

Prathumrat

Nikzad

Hajizadeh

et al. 2022

Polymers for Advanced Techs

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Shape memory elastomers (SMEs) are a class of intelligent materials characterized by their ability to deform and recover shapes under applied force and external stimuli. Heat and ultraviolet radiation are examples of the most common external stimuli. With the emerging prevalence of internet of things devices and the ensuing need for smart materials and structures, SMEs provide significant opportunities to support the development of novel applications in robotics, remotely actuated systems, and packages, including those promised for the space industry. To harness the immense potential in the emerging applications of these materials, one approach is the systematic multi‐scale modeling coupled with artificial intelligence‐assisted design leading to the development of next‐generation intelligent systems. This review covers several aspects of the synthesis/materials chemistry and applications of SMEs with a view towards enabling such an approach. The synthesis procedures emphasizing dynamic covalent bond reactions are reviewed. Then, liquid crystalline elastomers are introduced as a specific elastomeric material class that exhibits excellent shape memory characteristics and distinctive transition temperatures. The utilization of advanced manufacturing methods such as additive manufacturing, three‐dimensional printing, and the emerging four‐dimensional printing technologies assisted by machine learning are detailed in producing and predicting SMEs. Finally, the current trends in the use of SMEs are summarized in areas of industrial and space engineering and biomedical applications.

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Biomass Shape Memory Elastomers with Rapid Self-Healing Properties and High Recyclability

Cited by 17 publications

References 48 publications

Dynamic Chemical Cross-Linking and Mechanical Training of Bio-Based Polyamides Fabricate Strong and Recyclable Elastomers

Dynamic Chemical Cross-Linking and Mechanical Training of Bio-Based Polyamides Fabricate Strong and Recyclable Elastomers

Recent Developments in Shape Memory Elastomers for Biotechnology Applications

Shape memory elastomers: A review of synthesis, design, advanced manufacturing, and emerging applications

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