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Zhu J, Zhang L, Zhao Y, Yin L, Zha J, Dang Z. Advanced dielectric elastomer based on optimized thermoplastic polyurethane–styrene ethylene butylene styrene blend: Experiment and simulation. J Appl Polym Sci 2022. [DOI: 10.1002/app.51595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jing Zhu
- State Key Laboratory of Power System, Department of Electrical Engineering Tsinghua University Beijing China
| | - Lu Zhang
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - Yu Zhao
- School of Electrical Engineering Zhengzhou University Zhengzhou China
| | - Li‐Juan Yin
- State Key Laboratory of Power System, Department of Electrical Engineering Tsinghua University Beijing China
| | - Jun‐Wei Zha
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - Zhi‐Min Dang
- State Key Laboratory of Power System, Department of Electrical Engineering Tsinghua University Beijing China
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Oprea S, Potolinca VO. The effects of the inclusion of 1,2,4-triazole derivatives into the main chains of the polyurethane urea exposed to UV radiation. HIGH PERFORM POLYM 2021. [DOI: 10.1177/09540083211043737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Linear polyurethane urea containing 1,2,4-triazole segments was obtained by polyaddition of the 3,5-diamino-1,2,4-triazole (DATA) to urethane prepolymer. Also, three crosslinked polymers with different crosslinkers (2,4,6-triaminopyrimidine (TAP), glycerin (Gly), castor oil (CO)) were synthesized. Thermogravimetric analysis, of the obtained polymers, indicated good thermal stability up to 310°C. The polyurethane urea chemical structure was confirmed by FTIR analysis. The glass transition temperatures (Tg) of these polymers, measured by differential scanning calorimetry (DSC), were found in the range of −52°C to −56°C. These values were not significantly influenced by the structure of the hard domain and the intermolecular interactions. The tensile testing showed that the inclusion of 1,2,4-triazole in polyurethane structure substantially improves the tensile strength up to 58 MPa. The obtained polyurethane urea presents surface slight hydrophobic and low interfacial tension. The positive effect of the 1,2,4-triazole segment from the polymer main chain in the UV aging process of these polymer materials has been studied. After exposure to UV radiation, few changes were observed in the molecular structure, in the surface morphology and the mechanical properties.
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Affiliation(s)
- Stefan Oprea
- Institutul de Chimie Macromoleculara Petru Poni, Iasi, Romania
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Stribeck A, Pöselt E, Eling B, Jokari-Sheshdeh F, Hoell A. Thermoplastic polyurethanes with varying hard-segment components. Mechanical performance and a filler-crosslink conversion of hard domains as monitored by SAXS. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.07.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hossieny N, Shaayegan V, Ameli A, Saniei M, Park C. Characterization of hard-segment crystalline phase of thermoplastic polyurethane in the presence of butane and glycerol monosterate and its impact on mechanical property and microcellular morphology. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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