Soda lignin as a sustainable photosensitive component for conventional and controlled radical photopolymerization
Abstract Valorization of waste for chemical processes addresses a challenging task for the society. Soda lignin (AL) available in the pulp industry operated in a photocatalytic cycle CuX2/L (X: Br, Cl; L: Me6TREN: Tris[2-(dimethylamino)ethyl]amine) and to initiate radical photopolymerization of meth...
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| Format: | Article |
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Nature Portfolio
2025-07-01
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| Series: | Communications Chemistry |
| Online Access: | https://doi.org/10.1038/s42004-025-01593-0 |
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| author | Min Wang Xiongfei Luo Qunying Wang Veronika Strehmel Zhijun Chen Shujun Li Bernd Strehmel |
| author_facet | Min Wang Xiongfei Luo Qunying Wang Veronika Strehmel Zhijun Chen Shujun Li Bernd Strehmel |
| author_sort | Min Wang |
| collection | DOAJ |
| description | Abstract Valorization of waste for chemical processes addresses a challenging task for the society. Soda lignin (AL) available in the pulp industry operated in a photocatalytic cycle CuX2/L (X: Br, Cl; L: Me6TREN: Tris[2-(dimethylamino)ethyl]amine) and to initiate radical photopolymerization of methyl methacrylate (MMA) with α-bromophenylacetate (EBPA) by exposure at 420 nm. This resulted in poly(methyl methacrylate) (PMMA) exhibiting a dispersity <1.3 with CuX2/L loading of ≲52 ppm. Deactivator reduction increased dispersity. MMA, styrene, and benzyl methacrylate successfully served as monomers for chain extension and block copolymerization experiments. This worked with CuX2/L ≥ 6.5 ppm, although conventional radical polymerization additionally competed. Adding of sodium pyruvate enabled radical photopolymerization under air. Modification of lignin with an aryl sulfonate group resulted in a one-component photoinitiator. It successfully initiated radical photopolymerization of a monomer mixture of (hydroxyethyl)methacrylate (HEMA) and urethane dimethacrylate (UDMA). Scale-up experiments approved practicability of photo-ATRP. |
| format | Article |
| id | doaj-art-b3473af73f4c45778eb0487600737b5b |
| institution | Kabale University |
| issn | 2399-3669 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Chemistry |
| spelling | doaj-art-b3473af73f4c45778eb0487600737b5b2025-08-20T04:01:24ZengNature PortfolioCommunications Chemistry2399-36692025-07-018111110.1038/s42004-025-01593-0Soda lignin as a sustainable photosensitive component for conventional and controlled radical photopolymerizationMin Wang0Xiongfei Luo1Qunying Wang2Veronika Strehmel3Zhijun Chen4Shujun Li5Bernd Strehmel6Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of EducationKey Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of EducationDepartment of Chemistry, Institute for Coatings and Surface Chemistry Niederrhein University of Applied Sciences, Adlerstr. 1Department of Chemistry, Institute for Coatings and Surface Chemistry Niederrhein University of Applied Sciences, Adlerstr. 1Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of EducationKey Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of EducationDepartment of Chemistry, Institute for Coatings and Surface Chemistry Niederrhein University of Applied Sciences, Adlerstr. 1Abstract Valorization of waste for chemical processes addresses a challenging task for the society. Soda lignin (AL) available in the pulp industry operated in a photocatalytic cycle CuX2/L (X: Br, Cl; L: Me6TREN: Tris[2-(dimethylamino)ethyl]amine) and to initiate radical photopolymerization of methyl methacrylate (MMA) with α-bromophenylacetate (EBPA) by exposure at 420 nm. This resulted in poly(methyl methacrylate) (PMMA) exhibiting a dispersity <1.3 with CuX2/L loading of ≲52 ppm. Deactivator reduction increased dispersity. MMA, styrene, and benzyl methacrylate successfully served as monomers for chain extension and block copolymerization experiments. This worked with CuX2/L ≥ 6.5 ppm, although conventional radical polymerization additionally competed. Adding of sodium pyruvate enabled radical photopolymerization under air. Modification of lignin with an aryl sulfonate group resulted in a one-component photoinitiator. It successfully initiated radical photopolymerization of a monomer mixture of (hydroxyethyl)methacrylate (HEMA) and urethane dimethacrylate (UDMA). Scale-up experiments approved practicability of photo-ATRP.https://doi.org/10.1038/s42004-025-01593-0 |
| spellingShingle | Min Wang Xiongfei Luo Qunying Wang Veronika Strehmel Zhijun Chen Shujun Li Bernd Strehmel Soda lignin as a sustainable photosensitive component for conventional and controlled radical photopolymerization Communications Chemistry |
| title | Soda lignin as a sustainable photosensitive component for conventional and controlled radical photopolymerization |
| title_full | Soda lignin as a sustainable photosensitive component for conventional and controlled radical photopolymerization |
| title_fullStr | Soda lignin as a sustainable photosensitive component for conventional and controlled radical photopolymerization |
| title_full_unstemmed | Soda lignin as a sustainable photosensitive component for conventional and controlled radical photopolymerization |
| title_short | Soda lignin as a sustainable photosensitive component for conventional and controlled radical photopolymerization |
| title_sort | soda lignin as a sustainable photosensitive component for conventional and controlled radical photopolymerization |
| url | https://doi.org/10.1038/s42004-025-01593-0 |
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