Synthesis of PVA-based macromolecular photoinitiators through esterification with TXOCH₂COOH and cysteine, and investigation of their photophysical properties: in situ fabrication of flexible nanocomposite films
2-(Carboxymethoxy) thioxanthone (TX-OCH₂COOH), a thioxanthone derivative, was utilized for the esterification of polyvinyl alcohol (PVA) to synthesize a macromolecular photoinitiator, both in the absence and presence of Cysteine (Cys). The covalent attachment of the thioxanthone (TX) group to PVA th...
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Frontiers Media S.A.
2025-02-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2025.1544162/full |
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| author | Melisa Konar Kazuki Nakamura Nergis Arsu |
| author_facet | Melisa Konar Kazuki Nakamura Nergis Arsu |
| author_sort | Melisa Konar |
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| description | 2-(Carboxymethoxy) thioxanthone (TX-OCH₂COOH), a thioxanthone derivative, was utilized for the esterification of polyvinyl alcohol (PVA) to synthesize a macromolecular photoinitiator, both in the absence and presence of Cysteine (Cys). The covalent attachment of the thioxanthone (TX) group to PVA through esterification enabled the exploration of the photophysical properties of the resulting macromolecular photoinitiators (TXOCH₂COO-PVA and TXOCH₂COO-PVA-Cys) via UV-Vis and fluorescence studies. UV-Vis absorption spectrum of TXOCH₂COO-PVA confirmed the covalent bonding of TX, marked by a characteristic absorption peak at 397 nm corresponding to the thioxanthone chromophore. Fluorescence lifetimes were recorded as TXOCH₂COO-PVA was cast into a mold and air dried, resulting in a flexible form of PVA esterified with TXOCH₂COOH. In-situ synthesis of both silver and selenium nanoparticles was carried out using both TXOCH₂COO-PVA and TXOCH₂COO-PVA-Cys macromolecular initiators, successfully yielding nanocomposite flexible polymeric films. |
| format | Article |
| id | doaj-art-323394df8e8d45d7aaff3675cc6bcd23 |
| institution | Kabale University |
| issn | 2296-8016 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Materials |
| spelling | doaj-art-323394df8e8d45d7aaff3675cc6bcd232025-02-10T06:48:48ZengFrontiers Media S.A.Frontiers in Materials2296-80162025-02-011210.3389/fmats.2025.15441621544162Synthesis of PVA-based macromolecular photoinitiators through esterification with TXOCH₂COOH and cysteine, and investigation of their photophysical properties: in situ fabrication of flexible nanocomposite filmsMelisa Konar0Kazuki Nakamura1Nergis Arsu2Chemistry Department, Yildiz Technical University, Istanbul, TürkiyeGraduate School of Engineering, Chiba University, Chiba, JapanChemistry Department, Yildiz Technical University, Istanbul, Türkiye2-(Carboxymethoxy) thioxanthone (TX-OCH₂COOH), a thioxanthone derivative, was utilized for the esterification of polyvinyl alcohol (PVA) to synthesize a macromolecular photoinitiator, both in the absence and presence of Cysteine (Cys). The covalent attachment of the thioxanthone (TX) group to PVA through esterification enabled the exploration of the photophysical properties of the resulting macromolecular photoinitiators (TXOCH₂COO-PVA and TXOCH₂COO-PVA-Cys) via UV-Vis and fluorescence studies. UV-Vis absorption spectrum of TXOCH₂COO-PVA confirmed the covalent bonding of TX, marked by a characteristic absorption peak at 397 nm corresponding to the thioxanthone chromophore. Fluorescence lifetimes were recorded as TXOCH₂COO-PVA was cast into a mold and air dried, resulting in a flexible form of PVA esterified with TXOCH₂COOH. In-situ synthesis of both silver and selenium nanoparticles was carried out using both TXOCH₂COO-PVA and TXOCH₂COO-PVA-Cys macromolecular initiators, successfully yielding nanocomposite flexible polymeric films.https://www.frontiersin.org/articles/10.3389/fmats.2025.1544162/fullphotoinitiatorflexible polymeric filmsthioxanthones (TX)polyvinyl alcohol (PVA)esterification reactionsilver nanoparticles (AgNPs) |
| spellingShingle | Melisa Konar Kazuki Nakamura Nergis Arsu Synthesis of PVA-based macromolecular photoinitiators through esterification with TXOCH₂COOH and cysteine, and investigation of their photophysical properties: in situ fabrication of flexible nanocomposite films Frontiers in Materials photoinitiator flexible polymeric films thioxanthones (TX) polyvinyl alcohol (PVA) esterification reaction silver nanoparticles (AgNPs) |
| title | Synthesis of PVA-based macromolecular photoinitiators through esterification with TXOCH₂COOH and cysteine, and investigation of their photophysical properties: in situ fabrication of flexible nanocomposite films |
| title_full | Synthesis of PVA-based macromolecular photoinitiators through esterification with TXOCH₂COOH and cysteine, and investigation of their photophysical properties: in situ fabrication of flexible nanocomposite films |
| title_fullStr | Synthesis of PVA-based macromolecular photoinitiators through esterification with TXOCH₂COOH and cysteine, and investigation of their photophysical properties: in situ fabrication of flexible nanocomposite films |
| title_full_unstemmed | Synthesis of PVA-based macromolecular photoinitiators through esterification with TXOCH₂COOH and cysteine, and investigation of their photophysical properties: in situ fabrication of flexible nanocomposite films |
| title_short | Synthesis of PVA-based macromolecular photoinitiators through esterification with TXOCH₂COOH and cysteine, and investigation of their photophysical properties: in situ fabrication of flexible nanocomposite films |
| title_sort | synthesis of pva based macromolecular photoinitiators through esterification with txoch₂cooh and cysteine and investigation of their photophysical properties in situ fabrication of flexible nanocomposite films |
| topic | photoinitiator flexible polymeric films thioxanthones (TX) polyvinyl alcohol (PVA) esterification reaction silver nanoparticles (AgNPs) |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2025.1544162/full |
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