Nucleophilic amino acids as a renewable alternative to petrochemically-derived amines in glycerol epoxy resins
The standard epoxy resin curing agents revealed are from unsustainable petroleum-based sources, which produce poisonous exhaust when cured. Amino acids, a bio-based epoxy curing agent with amino and carboxyl groups, are another potential curing agent. Water-soluble epoxy resins cured with lysine (Ly...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2024-05-01
|
| Series: | Journal of Bioresources and Bioproducts |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2369969824000148 |
| _version_ | 1797210060733022208 |
|---|---|
| author | Yunyi Liang Yonghong Luo Yingji Wu Xiaona Li Quyet Van Le Jianzhang Li Changlei Xia |
| author_facet | Yunyi Liang Yonghong Luo Yingji Wu Xiaona Li Quyet Van Le Jianzhang Li Changlei Xia |
| author_sort | Yunyi Liang |
| collection | DOAJ |
| description | The standard epoxy resin curing agents revealed are from unsustainable petroleum-based sources, which produce poisonous exhaust when cured. Amino acids, a bio-based epoxy curing agent with amino and carboxyl groups, are another potential curing agent. Water-soluble epoxy resins cured with lysine (Lys), glutamic acid (Glu), leucine (Leu), and serine (Ser) as amino acids were investigated. The results showed that the water-soluble epoxy resin (glycerol epoxy resins, GER) was cured with Lys and Glu after reacting. Fourier transform infrared (FT-IR) spectroscopic analysis of the GER-Lys showed that the amino and carboxyl groups of Lys primarily reacted with the epoxy groups of GER. The elongation at break of Lys-cured GER (GER-Lys) cured at 70 ℃ with a molar ratio of 1꞉0.75 was 75.32%. The fact that elongations at break of GER-Lys (79.43%) were higher than those of GER-Glu (17.33%), respectively supports the decrease of crosslinking density by the amino acid-cured GER reaction. The potential of Lys and Glu alternatives for petrochemical amines is demonstrated and provides promising opportunities for industrial application. |
| first_indexed | 2024-04-24T10:04:36Z |
| format | Article |
| id | doaj.art-d46514e191844a99ab461e42eee2a178 |
| institution | Directory Open Access Journal |
| issn | 2369-9698 |
| language | English |
| last_indexed | 2024-04-24T10:04:36Z |
| publishDate | 2024-05-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Bioresources and Bioproducts |
| spelling | doaj.art-d46514e191844a99ab461e42eee2a1782024-04-13T04:21:25ZengKeAi Communications Co., Ltd.Journal of Bioresources and Bioproducts2369-96982024-05-0192222232Nucleophilic amino acids as a renewable alternative to petrochemically-derived amines in glycerol epoxy resinsYunyi Liang0Yonghong Luo1Yingji Wu2Xiaona Li3Quyet Van Le4Jianzhang Li5Changlei Xia6Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, ChinaDepartment of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, Seoul 02841, South KoreaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; Corresponding author.The standard epoxy resin curing agents revealed are from unsustainable petroleum-based sources, which produce poisonous exhaust when cured. Amino acids, a bio-based epoxy curing agent with amino and carboxyl groups, are another potential curing agent. Water-soluble epoxy resins cured with lysine (Lys), glutamic acid (Glu), leucine (Leu), and serine (Ser) as amino acids were investigated. The results showed that the water-soluble epoxy resin (glycerol epoxy resins, GER) was cured with Lys and Glu after reacting. Fourier transform infrared (FT-IR) spectroscopic analysis of the GER-Lys showed that the amino and carboxyl groups of Lys primarily reacted with the epoxy groups of GER. The elongation at break of Lys-cured GER (GER-Lys) cured at 70 ℃ with a molar ratio of 1꞉0.75 was 75.32%. The fact that elongations at break of GER-Lys (79.43%) were higher than those of GER-Glu (17.33%), respectively supports the decrease of crosslinking density by the amino acid-cured GER reaction. The potential of Lys and Glu alternatives for petrochemical amines is demonstrated and provides promising opportunities for industrial application.http://www.sciencedirect.com/science/article/pii/S2369969824000148Curing agentAmino acidsBio-based epoxy resinsLysineGlutamic acid |
| spellingShingle | Yunyi Liang Yonghong Luo Yingji Wu Xiaona Li Quyet Van Le Jianzhang Li Changlei Xia Nucleophilic amino acids as a renewable alternative to petrochemically-derived amines in glycerol epoxy resins Journal of Bioresources and Bioproducts Curing agent Amino acids Bio-based epoxy resins Lysine Glutamic acid |
| title | Nucleophilic amino acids as a renewable alternative to petrochemically-derived amines in glycerol epoxy resins |
| title_full | Nucleophilic amino acids as a renewable alternative to petrochemically-derived amines in glycerol epoxy resins |
| title_fullStr | Nucleophilic amino acids as a renewable alternative to petrochemically-derived amines in glycerol epoxy resins |
| title_full_unstemmed | Nucleophilic amino acids as a renewable alternative to petrochemically-derived amines in glycerol epoxy resins |
| title_short | Nucleophilic amino acids as a renewable alternative to petrochemically-derived amines in glycerol epoxy resins |
| title_sort | nucleophilic amino acids as a renewable alternative to petrochemically derived amines in glycerol epoxy resins |
| topic | Curing agent Amino acids Bio-based epoxy resins Lysine Glutamic acid |
| url | http://www.sciencedirect.com/science/article/pii/S2369969824000148 |
| work_keys_str_mv | AT yunyiliang nucleophilicaminoacidsasarenewablealternativetopetrochemicallyderivedaminesinglycerolepoxyresins AT yonghongluo nucleophilicaminoacidsasarenewablealternativetopetrochemicallyderivedaminesinglycerolepoxyresins AT yingjiwu nucleophilicaminoacidsasarenewablealternativetopetrochemicallyderivedaminesinglycerolepoxyresins AT xiaonali nucleophilicaminoacidsasarenewablealternativetopetrochemicallyderivedaminesinglycerolepoxyresins AT quyetvanle nucleophilicaminoacidsasarenewablealternativetopetrochemicallyderivedaminesinglycerolepoxyresins AT jianzhangli nucleophilicaminoacidsasarenewablealternativetopetrochemicallyderivedaminesinglycerolepoxyresins AT changleixia nucleophilicaminoacidsasarenewablealternativetopetrochemicallyderivedaminesinglycerolepoxyresins |