Comprehensive itaconic acid-based vitrimers <i>via</i> one-pot inverse vulcanization

Guo, Zhongkai; Jiao, Xuewei; Wei, Kailun; Wu, Jianqiao; Hu, Jun

doi:10.1039/d3gc00899a

Cited by 9 publications

(3 citation statements)

References 57 publications

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“…Therefore, to further illustrate the rearrangement of the network structure of the cross-linked polymer, the stress relaxation characteristics of PEAs with various HMDA contents were investigated. Generally, the stress relaxation time (τ*) is determined when the modulus ( G ) of the sample is declined to 1/e of the original modulus ( G 0 ) . The stress relaxation curve of PEAs at 210 °C is shown in Figure a, and all of these samples underwent significant stress relaxation.…”

Section: Resultsmentioning

confidence: 99%

“…Generally, the stress relaxation time (τ*) is determined when the modulus (G) of the sample is declined to 1/e of the original modulus (G 0 ). 47 The stress relaxation curve of PEAs at 210 °C is shown in Figure 3a, and all of these samples underwent significant stress relaxation. The τ* of PEA0.7 with a relatively low HMDA content is 17.04 min.…”

Section: Thermal and Mechanicalmentioning

confidence: 99%

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Mechanically Strong and Tough Plant Oil-Based Poly(ester amide) Vitrimers with Closed-Loop Recyclability

Gao,

Wu,

Fan

et al. 2024

ACS Sustainable Chem. Eng.

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Replacing traditional petroleum-based plastics with degradable biobased plastics has become one of the significant strategies to address energy shortages and environmental issues. Nevertheless, it still remains a scientific challenge to develop biobased plastics with ultrastrong mechanical strength and superior recyclability. Here, the catalytic conversion of Sapium sebiferum oil (SSO) to 9,10-dihydroxy-octadecanoic acid (C18-OH) monomer is first designed. Simultaneously, a novel biobased plastic, namely, PEA, is fabricated by a dual network through one-pot meltpolymerization, which exhibits mechanical performance higher than most commercial plastics and other reported PEAs. Benefiting from the synergy of the dynamic nature of H-bonds and hydroxy-ester bonds as well as the flexibility of the long aliphatic chain, the PEAs exhibit exceptional repairability and reprocessability. More importantly, PEAs can be efficiently degraded into the original reagents and the cross-linked materials can be reconstructed by the recovered monomers without losing the pristine performance. Additionally, abundant polar groups provide excellent adhesion properties for PEAs with a high shear strength of 10.29 ± 0.21 MPa. This work unveils an elegant and efficient synthetic route to fabricate impressively robust and chemically recyclable materials as promising alternatives to conventional plastics.

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Section: Resultsmentioning

confidence: 99%

Section: Thermal and Mechanicalmentioning

confidence: 99%

Mechanically Strong and Tough Plant Oil-Based Poly(ester amide) Vitrimers with Closed-Loop Recyclability

Gao,

Wu,

Fan

et al. 2024

ACS Sustainable Chem. Eng.

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“…Combining all synthesis steps in a single reaction vessel (one-pot synthesis) to obtain dynamic polymers can circumvent several purification procedures. One-pot procedures are widely used in synthetic organic chemistry due to the minimized chemical waste, reduced time, and simpler procedure. − One-pot strategies have also been applied to synthesize polysulfonates, block copolyesters, and poly(meth)acrylates, exhibiting environmentally friendly and economical processes. One-pot synthesis is the core concept of multicomponent reactions involving monomer synthesis and postpolymerization modification to obtain linear, hyperbranched, and cross-linked polymers. − However, most one-pot synthesis processes involve the use of organic solvents, and only a few dynamic polymers have been obtained using a one-pot synthesis strategy .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Dynamic Polyurethanes by Utilizing Low-Transition-Temperature Mixtures of Pyrogallol and Poly(ethylene glycol)

Wang,

Fu,

Liu

et al. 2024

ACS Appl. Polym. Mater.

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Dynamic covalent networks exhibit intriguing reprocessing and self-healing properties, but they usually require complex synthesis procedures and frequently use hazardous solvents. Herein, we proposed a green synthesis strategy for dynamic polyurethane that was conducted in a one-pot, solvent-free manner that addresses the aforementioned problems. A new type of low-transition-temperature mixture (LTTM) was prepared by blending pyrogallol and poly-(ethylene glycol), which allowed the reagents to remain as liquids at room temperature. The formation of LTTMs was ascribed to the presence of intermolecular hydrogen-bonding and van der Waals interactions between the molecules of the two reagents. Self-healing and reprocessable dynamic polyurethane with dissociative exchangeable phenol−carbamate bonds was synthesized by incorporating a hexamethylene diisocyanate trimer as the third component into the LTTMs, followed by thermal curing. The properties of the dynamic polyurethane could be adjusted by modifying the pyrogallol content in the LTTMs. The preparation of LTTMs and dynamic polyurethane did not require any purification steps and solvents, which provides an innovative approach to polymer synthesis that is efficient and environmentally friendly.

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Green synthesis of soybean oil-derived UV-curable resins for high-resolution 3D printing

Wang,

Cai,

et al. 2024

Additive Manufacturing

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Comprehensive itaconic acid-based vitrimers via one-pot inverse vulcanization

Abstract: Dynamic cross-linked biobased vitrimers can be recycled, reprocessed, and degraded via bond exchange reactions. However, the competitive raw materials and the tedious preparation process still bring challenges for these sustainable...

Cited by 9 publications

References 57 publications

Mechanically Strong and Tough Plant Oil-Based Poly(ester amide) Vitrimers with Closed-Loop Recyclability

Mechanically Strong and Tough Plant Oil-Based Poly(ester amide) Vitrimers with Closed-Loop Recyclability

Synthesis of Dynamic Polyurethanes by Utilizing Low-Transition-Temperature Mixtures of Pyrogallol and Poly(ethylene glycol)

Green synthesis of soybean oil-derived UV-curable resins for high-resolution 3D printing

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