Self‐Healing Ability of Poly(PEGMA‐5‐UPy) Evaluated by Thermomechanical Analysis
Abstract The synthesis and characterization of polyethylene glycol monomethyl ether methacrylate (PEGMA) based copolymers incorporating three different percentages (2.5 wt%, 5.0 wt%, and 7.8 wt%) of urea‐N‐2‐amino‐4‐hydroxy‐6‐methylpyrimidine‐N’‐(hexametylen‐n‐carboxyethyl methacrylate) (HEMA‐UPy) a...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-03-01
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| Series: | Macromolecular Materials and Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/mame.202200500 |
| _version_ | 1797743181104676864 |
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| author | Elisa Calabrese Liberata Guadagno Marialuigia Raimondo Andrea Sorrentino Simona Russo Pasquale Longo Annaluisa Mariconda |
| author_facet | Elisa Calabrese Liberata Guadagno Marialuigia Raimondo Andrea Sorrentino Simona Russo Pasquale Longo Annaluisa Mariconda |
| author_sort | Elisa Calabrese |
| collection | DOAJ |
| description | Abstract The synthesis and characterization of polyethylene glycol monomethyl ether methacrylate (PEGMA) based copolymers incorporating three different percentages (2.5 wt%, 5.0 wt%, and 7.8 wt%) of urea‐N‐2‐amino‐4‐hydroxy‐6‐methylpyrimidine‐N’‐(hexametylen‐n‐carboxyethyl methacrylate) (HEMA‐UPy) are reported. Nuclear magnetic resonance (NMR) and infrared spectroscopy (IR) confirm the synthesis procedure. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) are employed to evaluate the thermal properties of the samples. DSC measurements evidence a slight increase in glass transition temperature (Tg), a consistent increase in crystallization and melting temperatures (Tc and Tm), and a reduction in the crystallization degree (Xc) with increasing the amount of HEMA‐UPy moiety. Dynamic mechanical analysis (DMA) is carried out at different values of temperature and oscillation frequency. It highlights the ability of the healed copolymer to recover the pristine values of storage modulus. The healing efficiency depends on the temperature history of the sample. For the sample healed at room temperature, the value of healing efficiency is 64%. DMA tests performed at higher temperatures, after some permanence at room temperature, evidence higher values in the healing efficiency. This demonstrates that the higher value of the temperature employed during DMA tests determines greater mobility of the chains causing an enhancement in the healing efficiency. |
| first_indexed | 2024-03-12T14:51:49Z |
| format | Article |
| id | doaj.art-88d94b3f226c4b5b9c27374f9cc47769 |
| institution | Directory Open Access Journal |
| issn | 1438-7492 1439-2054 |
| language | English |
| last_indexed | 2024-03-12T14:51:49Z |
| publishDate | 2023-03-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Macromolecular Materials and Engineering |
| spelling | doaj.art-88d94b3f226c4b5b9c27374f9cc477692023-08-15T09:10:18ZengWiley-VCHMacromolecular Materials and Engineering1438-74921439-20542023-03-013083n/an/a10.1002/mame.202200500Self‐Healing Ability of Poly(PEGMA‐5‐UPy) Evaluated by Thermomechanical AnalysisElisa Calabrese0Liberata Guadagno1Marialuigia Raimondo2Andrea Sorrentino3Simona Russo4Pasquale Longo5Annaluisa Mariconda6Department of Industrial Engineering University of Salerno Via Giovanni Paolo II Fisciano Salerno 84084 ItalyDepartment of Industrial Engineering University of Salerno Via Giovanni Paolo II Fisciano Salerno 84084 ItalyDepartment of Industrial Engineering University of Salerno Via Giovanni Paolo II Fisciano Salerno 84084 ItalyInstitute for Polymers, Composites, and Biomaterials (IPCB‐CNR) via Previati n. 1/E Lecco 23900 ItalyDepartment of Chemistry and Biology University of Salerno Via Giovanni Paolo II, 132 Fisciano Salerno 84084 ItalyDepartment of Chemistry and Biology University of Salerno Via Giovanni Paolo II, 132 Fisciano Salerno 84084 ItalyDepartment of Science University of Basilicata Viale dell'Ateneo Lucano, 10 Potenza 85100 ItalyAbstract The synthesis and characterization of polyethylene glycol monomethyl ether methacrylate (PEGMA) based copolymers incorporating three different percentages (2.5 wt%, 5.0 wt%, and 7.8 wt%) of urea‐N‐2‐amino‐4‐hydroxy‐6‐methylpyrimidine‐N’‐(hexametylen‐n‐carboxyethyl methacrylate) (HEMA‐UPy) are reported. Nuclear magnetic resonance (NMR) and infrared spectroscopy (IR) confirm the synthesis procedure. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) are employed to evaluate the thermal properties of the samples. DSC measurements evidence a slight increase in glass transition temperature (Tg), a consistent increase in crystallization and melting temperatures (Tc and Tm), and a reduction in the crystallization degree (Xc) with increasing the amount of HEMA‐UPy moiety. Dynamic mechanical analysis (DMA) is carried out at different values of temperature and oscillation frequency. It highlights the ability of the healed copolymer to recover the pristine values of storage modulus. The healing efficiency depends on the temperature history of the sample. For the sample healed at room temperature, the value of healing efficiency is 64%. DMA tests performed at higher temperatures, after some permanence at room temperature, evidence higher values in the healing efficiency. This demonstrates that the higher value of the temperature employed during DMA tests determines greater mobility of the chains causing an enhancement in the healing efficiency.https://doi.org/10.1002/mame.202200500hydrogen bondsself‐healing materialssupramolecular chemistry |
| spellingShingle | Elisa Calabrese Liberata Guadagno Marialuigia Raimondo Andrea Sorrentino Simona Russo Pasquale Longo Annaluisa Mariconda Self‐Healing Ability of Poly(PEGMA‐5‐UPy) Evaluated by Thermomechanical Analysis Macromolecular Materials and Engineering hydrogen bonds self‐healing materials supramolecular chemistry |
| title | Self‐Healing Ability of Poly(PEGMA‐5‐UPy) Evaluated by Thermomechanical Analysis |
| title_full | Self‐Healing Ability of Poly(PEGMA‐5‐UPy) Evaluated by Thermomechanical Analysis |
| title_fullStr | Self‐Healing Ability of Poly(PEGMA‐5‐UPy) Evaluated by Thermomechanical Analysis |
| title_full_unstemmed | Self‐Healing Ability of Poly(PEGMA‐5‐UPy) Evaluated by Thermomechanical Analysis |
| title_short | Self‐Healing Ability of Poly(PEGMA‐5‐UPy) Evaluated by Thermomechanical Analysis |
| title_sort | self healing ability of poly pegma 5 upy evaluated by thermomechanical analysis |
| topic | hydrogen bonds self‐healing materials supramolecular chemistry |
| url | https://doi.org/10.1002/mame.202200500 |
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