Fast UV‐ and Visible Light Induced Polymer Network Formation Using Carbene Mediated CH‐insertion Based Crosslinking (CHic) Via Nitrophenyl Diazo Esters
Abstract The synthesis and characterization of highly photosensitive coatings containing a diazo‐based crosslinker that exhibits high photoreactivity in the near‐visible UV and toward sunlight is present. Nitrophenyl diazo ester (nitroPEDAz) moieties are incorporated into polymer chains via free rad...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-09-01
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| Series: | Advanced Materials Interfaces |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/admi.202300316 |
| _version_ | 1797687530339958784 |
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| author | Dennis Rusitov Florian Deussen Jürgen Rühe |
| author_facet | Dennis Rusitov Florian Deussen Jürgen Rühe |
| author_sort | Dennis Rusitov |
| collection | DOAJ |
| description | Abstract The synthesis and characterization of highly photosensitive coatings containing a diazo‐based crosslinker that exhibits high photoreactivity in the near‐visible UV and toward sunlight is present. Nitrophenyl diazo ester (nitroPEDAz) moieties are incorporated into polymer chains via free radical polymerization and generate upon irradiation carbenes, which undergo a CH insertion‐based crosslinking (CHic) reaction. The copolymers are deposited onto substrate surfaces through known coating techniques and then activated to form polymer networks and simultaneously attach covalently to the surfaces if CH groups are available. It is demonstrated that very low light doses on the order of 20 mJ cm−2 are sufficient to generate surface‐attached networks and that the copolymer can be patterned photolithographically into defined structures on a broad spectrum of substrates using UV‐ and natural sunlight. Even a few seconds of sunlight exposure are sufficient to crosslink and surface‐attach the film. |
| first_indexed | 2024-03-12T01:19:18Z |
| format | Article |
| id | doaj.art-258a6b2e6a894d389d4ca02cbc10c33e |
| institution | Directory Open Access Journal |
| issn | 2196-7350 |
| language | English |
| last_indexed | 2024-03-12T01:19:18Z |
| publishDate | 2023-09-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj.art-258a6b2e6a894d389d4ca02cbc10c33e2023-09-13T07:27:03ZengWiley-VCHAdvanced Materials Interfaces2196-73502023-09-011026n/an/a10.1002/admi.202300316Fast UV‐ and Visible Light Induced Polymer Network Formation Using Carbene Mediated CH‐insertion Based Crosslinking (CHic) Via Nitrophenyl Diazo EstersDennis Rusitov0Florian Deussen1Jürgen Rühe2Cluster of Excellence livMatS @ FIT—Freiburg Center for Interactive Materials and Bioinspired Technologies University of Freiburg Georges‐Köhler‐Allee 105 D‐79110 Freiburg GermanyCluster of Excellence livMatS @ FIT—Freiburg Center for Interactive Materials and Bioinspired Technologies University of Freiburg Georges‐Köhler‐Allee 105 D‐79110 Freiburg GermanyCluster of Excellence livMatS @ FIT—Freiburg Center for Interactive Materials and Bioinspired Technologies University of Freiburg Georges‐Köhler‐Allee 105 D‐79110 Freiburg GermanyAbstract The synthesis and characterization of highly photosensitive coatings containing a diazo‐based crosslinker that exhibits high photoreactivity in the near‐visible UV and toward sunlight is present. Nitrophenyl diazo ester (nitroPEDAz) moieties are incorporated into polymer chains via free radical polymerization and generate upon irradiation carbenes, which undergo a CH insertion‐based crosslinking (CHic) reaction. The copolymers are deposited onto substrate surfaces through known coating techniques and then activated to form polymer networks and simultaneously attach covalently to the surfaces if CH groups are available. It is demonstrated that very low light doses on the order of 20 mJ cm−2 are sufficient to generate surface‐attached networks and that the copolymer can be patterned photolithographically into defined structures on a broad spectrum of substrates using UV‐ and natural sunlight. Even a few seconds of sunlight exposure are sufficient to crosslink and surface‐attach the film.https://doi.org/10.1002/admi.202300316CH insertiondiazo compoundsphotochemistrysurface modification |
| spellingShingle | Dennis Rusitov Florian Deussen Jürgen Rühe Fast UV‐ and Visible Light Induced Polymer Network Formation Using Carbene Mediated CH‐insertion Based Crosslinking (CHic) Via Nitrophenyl Diazo Esters Advanced Materials Interfaces CH insertion diazo compounds photochemistry surface modification |
| title | Fast UV‐ and Visible Light Induced Polymer Network Formation Using Carbene Mediated CH‐insertion Based Crosslinking (CHic) Via Nitrophenyl Diazo Esters |
| title_full | Fast UV‐ and Visible Light Induced Polymer Network Formation Using Carbene Mediated CH‐insertion Based Crosslinking (CHic) Via Nitrophenyl Diazo Esters |
| title_fullStr | Fast UV‐ and Visible Light Induced Polymer Network Formation Using Carbene Mediated CH‐insertion Based Crosslinking (CHic) Via Nitrophenyl Diazo Esters |
| title_full_unstemmed | Fast UV‐ and Visible Light Induced Polymer Network Formation Using Carbene Mediated CH‐insertion Based Crosslinking (CHic) Via Nitrophenyl Diazo Esters |
| title_short | Fast UV‐ and Visible Light Induced Polymer Network Formation Using Carbene Mediated CH‐insertion Based Crosslinking (CHic) Via Nitrophenyl Diazo Esters |
| title_sort | fast uv and visible light induced polymer network formation using carbene mediated ch insertion based crosslinking chic via nitrophenyl diazo esters |
| topic | CH insertion diazo compounds photochemistry surface modification |
| url | https://doi.org/10.1002/admi.202300316 |
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