Fully bio-based epoxidized soybean oil thermosets for high performance triboelectric nanogenerators

Pansumdaeng, Jarawee; Kuntharin, Saman; Harnchana, Viyada; Supanchaiyamat, Nontipa

doi:10.1039/d0gc01738h

Cited by 33 publications

(23 citation statements)

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“…This indicates that the polymers’ strength and stiffness had ameliorated due to the presence of more crosslinkers which provided more crosslinking and intermolecular interactions such as hydrogen bonding . Importantly, the mechanical properties of the thermoset ESO/HMDA films were relatively higher compared to the previously reported films derived from ESO and biobased dicarboxylic acid crosslinkers. , The enhanced mechanical properties may be due to hydrogen bonds of N–H present within the polyamide structure …”

Section: Resultsmentioning

confidence: 83%

“…The ESO/HMDA molar ratio of 1:2.5 demonstrated the highest tensile strength and Young’s modulus of 2.44 and 10.31 MPa, respectively. This tensile strength value was enhanced 4-fold, while Young’s modulus was 3-fold higher in comparison with the TENG prepared from ESO and succinic anhydride . This indicates that the polymers’ strength and stiffness had ameliorated due to the presence of more crosslinkers which provided more crosslinking and intermolecular interactions such as hydrogen bonding .…”

Section: Resultsmentioning

confidence: 90%

“…This tensile strength value was enhanced 4-fold, while Young's modulus was 3-fold higher in comparison with the TENG prepared from ESO and succinic anhydride. 45 This indicates that the polymers' strength and stiffness had ameliorated due to the presence of more crosslinkers which provided more crosslinking and intermolecular interactions such as hydrogen bonding. 54 Importantly, the mechanical properties of the thermoset ESO/HMDA films were relatively higher compared to the previously reported films derived from ESO and biobased dicarboxylic acid crosslinkers.…”

Section: ■ Results and Discussionmentioning

confidence: 98%

“…The T peak values in these mixtures were lower compared to ESO thermosets prepared with acid/anhydride crosslinkers, which exhibited values in the region of 180−210 °C, despite the use of a catalyst in the latter. 45,46 This was attributed to the higher reactivity of the amine crosslinker in the ESO-based system. The curing temperature of 180 °C was selected to cover the peak temperature of the ESO/HMDA system.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…54 Importantly, the mechanical properties of the thermoset ESO/HMDA films were relatively higher compared to the previously reported films derived from ESO and biobased dicarboxylic acid crosslinkers. 45,46 The enhanced mechanical properties may be due to hydrogen bonds of N−H present within the polyamide structure. 55 Dynamic mechanical properties of cured films were studied via DMA with tension mode.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Facile Synthesis of Biobased Polyamide Derived from Epoxidized Soybean Oil as a High-Efficiency Triboelectric Nanogenerator

Intarabumrung

Kuntharin

Harnchana

et al. 2022

ACS Sustainable Chem. Eng.

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A biobased thermosetting polyamide has been synthesized through the crosslinking of epoxidized soybean oil (ESO) with hexamethylenediamine (HMDA) for application in sustainable energy harvesting devices, triboelectric nanogenerators (TENGs). A simple synthetic method requiring neither a solvent nor catalysts was employed. Amide formation was confirmed by FTIR signals corresponding to CO stretching at ∼1650 cm–1, N–H bending vibration at ∼1540 cm–1, and C–N stretching at 1168 cm–1. Polyamides of ESO/HMDA demonstrated excellent thermal stability (displaying a DTG peak at around 460 °C), high hydrophobicity with a water uptake of lower than 1.5%, and contact angles in the range of 86–120°. Importantly, the ESO/HMDA TENG exhibited outstanding electrical performance compared to other biobased devices, with the highest output voltage and current of 150 V and 14 μA, respectively. The high efficiency of the TENG was attributed to the significant nitrogen content within the polyamide structure, where enhanced electrical performance correlated with greater ratios of HMDA. ESO/HMDA biobased polyamides offer an exciting new opportunity for utilization in the fabrication of sustainable energy harvesting devices, such as TENGs.

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Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 90%

Section: ■ Results and Discussionmentioning

confidence: 98%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Facile Synthesis of Biobased Polyamide Derived from Epoxidized Soybean Oil as a High-Efficiency Triboelectric Nanogenerator

Intarabumrung

Kuntharin

Harnchana

et al. 2022

ACS Sustainable Chem. Eng.

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Fast‐Curing of Liquid Crystal Thermosets Enabled by End‐Groups Regulation and In Situ Monitoring by Triboelectric Spectroscopy

Zhang,

Han,

Guan

et al. 2024

Advanced Materials

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The development of high‐performance polymer is crucial for the fabrication of triboelectric nanogenerators (TENGs) used in extreme conditions. Liquid crystal polyarylate thermosets (LCTs) demonstrate great potential as triboelectric material by virtue of exceptional comprehensive properties. However, there are only a few specific end‐groups like phenylethynyl matching the LCT polycondensation temperature (above 300 °C). Moreover, the excellent properties of LCTs rely on the crosslinked network formed with long curing time at high temperature, restricting their further application in triboelectric material. Herein, a fast‐curing LCT is designed by terminating with 4‐maleimidophenol possessing appropriate reactivity. The resultant LCT (MA‐LC‐MA) exhibits much lower polycondensation temperature (250–270 °C) and curing temperature of 300 °C within only 1 min compared to typical LCTs (cured at 370 °C for 1 h). Furthermore, the cured MA‐LC‐MA retains a high glass transition temperature of 135 °C, storage modulus of 6 MPa even at 350 °C, and great electrical output performance. Additionally, triboelectric measurement related to the dielectric properties that vary with crosslinked network is innovatively utilized as an analysis technique of curing progress. This work provides a new strategy to design high‐performance TENGs and promotes the development of next generation thermosets in extreme conditions.

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Facile synthesis of cassava starch‐based bioplastics modified by citric acid‐epoxidized soybean oil oligomers

Yang,

Xu,

Ching

et al. 2023

J of Applied Polymer Sci

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The present work aimed to explore the effect of citric acid (CA) on the structures and properties of cassava starch/epoxidized soybean oils‐based bioplastics. First, citric acid‐epoxidized soybean oil oligomers (CESO) were fabricated by the reaction of epoxidized soybean oils (ESO) and CA with different molar ratios (nCA:nepoxy = 3 ~ 12). CESO were successfully synthesized as evidenced by the FTIR and GPC data. Second, the synthesized CESO were applied to fabricate the bioplastics with starch by solution casting. The prepared bioplastics were evaluated by structural, thermal, mechanical, optical, and water resistance properties. The FTIR spectra reflected that CESO showed an esterification reaction with starch. The FESEM images revealed that CESO exhibited better dispersity in the samples than ESO. The samples containing CESO got plasticized with a remarkable increase of elongation at break (3.41–6.14 times) and a decrease of the tensile strength (1.35–2.07 times) compared to that with ESO. CESO promoted significantly higher light transmittance of the bioplastics than ESO due to their better dispersibility in the bioplastics. The hydrophobicity of the bioplastics increased upon the addition of CESO. These results made the fabricated bioplastics potential substitutes for petroleum‐based plastics for industrial applications.

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Fully bio-based epoxidized soybean oil thermosets for high performance triboelectric nanogenerators

Abstract: For the first time fully bio-derived thermosets have been synthesized from abundantly available, low cost, renewable feedstocks through a simple, solvent-free and catalytic process for the fabrication of triboelectric nanogenerators...

Cited by 33 publications

References 43 publications

Facile Synthesis of Biobased Polyamide Derived from Epoxidized Soybean Oil as a High-Efficiency Triboelectric Nanogenerator

Facile Synthesis of Biobased Polyamide Derived from Epoxidized Soybean Oil as a High-Efficiency Triboelectric Nanogenerator

Fast‐Curing of Liquid Crystal Thermosets Enabled by End‐Groups Regulation and In Situ Monitoring by Triboelectric Spectroscopy

Facile synthesis of cassava starch‐based bioplastics modified by citric acid‐epoxidized soybean oil oligomers

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