Synthesis and characterization of low molar mass end-functionalized homo- and copolymers with ureidopyrimidone, UPy groups

Bitsi, Spyridoula-Lida; Stogiou, Maria; Costanzo, Salvatore; Stiakakis, Emmanuel; Vlassopoulos, Dimitris; Nika, Anastasia; Chatzichristidi, Margarita; Pitsikalis, Marinos

doi:10.1007/s00396-020-04642-3

Cited by 5 publications

(2 citation statements)

References 78 publications

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“…As shown in Figure b, in the IR spectrum of PU-UPy, the absorption peak of 1708 cm –1 represents the vibration of double bonds of CO (−CO–NH−) in the UPy unit and that of 1560 cm –1 represents the vibration of CC in the ring. Also, 1669 cm –1 absorption representing the stretching vibration of the UPy-formed carbamate (−HN- co -NH−) indicates the successful graft of the UPy unit onto the linear polymer. , Previous reports have confirmed that PEG with lower molecular weight (<1000) can not only improve the film conductivity but also realize self-healing of the PEDOT:PSS/PEG films under certain processing methods (decreases the elastic modulus and increases the elongation at break) . However, unfavorable hygroscopicity of the film has not been studied, which narrowed its actual application.…”

Section: Results and Discussionmentioning

confidence: 99%

Low-Heat-Driven Self-Healing Flexible Electrochromic Film Relying on a PEDOT:PSS-Based All-Organic Composite

Zhou,

An,

Xie

et al. 2024

ACS Appl. Polym. Mater.

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Electronic materials capable of bionic self-healing have received extensive attention in view of the urgent need of extending device life, maintaining operation safety, and reducing renewal costs. Among them, conducting polymers (CPs), especially poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PE-DOT:PSS), have become a research hotspot due to their intrinsic and tunable electrical conductivity, macromolecule nature with good processability, good stability, combination ability, etc. Herein, an all-organic PEDOT:PSS/poly-(ethylene glycol)/2-amino-4-hydroxy-6-methylpyrimidine-encapsulated polyurethane film with high electrical conductivity, remarkable self-healing ability, excellent mechanical flexibility, and strong water resistance is created by the ingenious design of a multiple hydrogen-bonding strategy. Moreover, the film was fabricated easily from a solvent (water/methanol)-processable dispersion with fast drying and "green" advantages. The film crack can be healed by relatively lowtemperature heating at 65 °C for 5 min with recovered smooth surface and electrochromic properties, including high optical contrast (ΔT) values of up to 68.2%, fast oxidation and reduction responses (0.24 and 0.49 s, respectively), and excellent coloration efficiency (246.4 cm 2 C −1 ). The flexible electrochromic device employing this film as an active layer still maintained an ΔT value of more than 47% and can remain above 90% even after 1000 times of operation or mechanical bending. This research will greatly enhance the reliability of PEDOT:PSS-based organic film electronic devices.

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Section: Results and Discussionmentioning

confidence: 99%

Low-Heat-Driven Self-Healing Flexible Electrochromic Film Relying on a PEDOT:PSS-Based All-Organic Composite

Zhou,

An,

Xie

et al. 2024

ACS Appl. Polym. Mater.

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“…ere is a continuous effort towards the synthesis of novel polymeric materials to cover the needs for modern everyday life and for specialty applications as well [1,2]. Towards this goal, the employment of new monomers as the source of novel polymers is limited and therefore the research is directed to the combination of different monomers with diverse properties, leading to the synthesis of copolymers with various architectures [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Both parameters, that is, the macromolecular architecture and the coexistence in the same structure of two or more monomer units, may dramatically influence the solid state and solution properties [18,19].…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability and Kinetics of Thermal Decomposition of Statistical Copolymers of N-Vinylpyrrolidone and Alkyl Methacrylates Synthesized via RAFT Polymerization

Gikarakis

Pappas

Arvanitaki

et al. 2021

Journal of Chemistry

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The thermal stability and the kinetics of thermal decomposition of statistical copolymers of N-vinylpyrrolidone (NVP) with the alkyl methacrylates, hexyl methacrylate (HMA) and stearyl methacrylate (SMA), were studied by Thermogravimetric Analysis (TGA) and Differential Thermogravimetry (DTG). Statistical copolymers of different compositions were studied, and their thermal decomposition behavior was compared to the corresponding homopolymers. The activation energies of the thermal decomposition were calculated using the Ozawa-Flynn-Wall, the Kissinger, and the Kissinger-Akahira-Sunose methodologies. The effects of the nature of the methacrylate monomer, the copolymer composition, and the rate of heating are discussed.

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UV-cured self-healing gel polymer electrolyte toward safer room temperature lithium metal batteries

Siccardi

Amici

Colombi

et al. 2022

Electrochimica Acta

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Synthesis and characterization of low molar mass end-functionalized homo- and copolymers with ureidopyrimidone, UPy groups

Cited by 5 publications

References 78 publications

Low-Heat-Driven Self-Healing Flexible Electrochromic Film Relying on a PEDOT:PSS-Based All-Organic Composite

Low-Heat-Driven Self-Healing Flexible Electrochromic Film Relying on a PEDOT:PSS-Based All-Organic Composite

Thermal Stability and Kinetics of Thermal Decomposition of Statistical Copolymers of N-Vinylpyrrolidone and Alkyl Methacrylates Synthesized via RAFT Polymerization

UV-cured self-healing gel polymer electrolyte toward safer room temperature lithium metal batteries

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