Imidazole-type thermal latent curing agents with high miscibility for one-component epoxy thermosetting resins
ABSTRACT Epoxy resins are important thermosetting resins widely employed in industrial fields. Although the epoxy–imidazole curing system has attracted attention because of its reactivity, solidification of a liquid epoxy resin containing imidazoles proceeds gradually even at room temperature. This...
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| Veröffentlicht in: | Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2016-09, Vol.54 (17), p.2680-2688 |
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| container_title | Journal of polymer science. Part A, Polymer chemistry |
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| creator | Kudo, Kenji Fuse, Sawako Furutani, Masahiro Arimitsu, Koji |
| description | ABSTRACT
Epoxy resins are important thermosetting resins widely employed in industrial fields. Although the epoxy–imidazole curing system has attracted attention because of its reactivity, solidification of a liquid epoxy resin containing imidazoles proceeds gradually even at room temperature. This makes it difficult to use them for one‐component epoxy resin materials. Though powder‐type latent curing agents have been used for one‐component epoxy resin materials, they are difficult to apply for fabrication of fine industrial products due to their poor miscibility. To overcome this situation and to improve the shelf life of epoxy–imidazole compositions, we have developed a liquid‐type thermal latent curing agent 1, generating an imidazole with a thermal trigger via a retro‐Michael addition reaction. The latent curing agent 1 has superior miscibility toward epoxy resins; in addition, it was confirmed that the epoxy resin composition has both high reactivity at 150 °C, and long‐term storage stability at room temperature. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 2680–2688
A liquid‐type thermal latent curing agent 1 has been developed, which generates an imidazole with a thermal trigger via a retro‐Michael addition reaction. The latent curing agent 1 has superior miscibility toward epoxy resins; in addition, it is confirmed that the epoxy resin composition has both high reactivity at 150 °C, and long‐term storage stability at room temperature. |
| doi_str_mv | 10.1002/pola.28146 |
| format | Article |
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Epoxy resins are important thermosetting resins widely employed in industrial fields. Although the epoxy–imidazole curing system has attracted attention because of its reactivity, solidification of a liquid epoxy resin containing imidazoles proceeds gradually even at room temperature. This makes it difficult to use them for one‐component epoxy resin materials. Though powder‐type latent curing agents have been used for one‐component epoxy resin materials, they are difficult to apply for fabrication of fine industrial products due to their poor miscibility. To overcome this situation and to improve the shelf life of epoxy–imidazole compositions, we have developed a liquid‐type thermal latent curing agent 1, generating an imidazole with a thermal trigger via a retro‐Michael addition reaction. The latent curing agent 1 has superior miscibility toward epoxy resins; in addition, it was confirmed that the epoxy resin composition has both high reactivity at 150 °C, and long‐term storage stability at room temperature. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 2680–2688
A liquid‐type thermal latent curing agent 1 has been developed, which generates an imidazole with a thermal trigger via a retro‐Michael addition reaction. The latent curing agent 1 has superior miscibility toward epoxy resins; in addition, it is confirmed that the epoxy resin composition has both high reactivity at 150 °C, and long‐term storage stability at room temperature.</description><identifier>ISSN: 0887-624X</identifier><identifier>EISSN: 1099-0518</identifier><identifier>DOI: 10.1002/pola.28146</identifier><identifier>CODEN: JPACEC</identifier><language>eng</language><publisher>Hoboken: Blackwell Publishing Ltd</publisher><subject>crosslinking ; Curing agents ; Epoxy resins ; Imidazole ; liquid-type ; Liquids ; Miscibility ; Reagents ; retro-Michael addition reaction ; Storage stability ; thermal latent curing agent ; thermosets ; Thermosetting resins</subject><ispartof>Journal of polymer science. Part A, Polymer chemistry, 2016-09, Vol.54 (17), p.2680-2688</ispartof><rights>2016 Wiley Periodicals, Inc.</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3726-8da5aaf069e45881a1954cd1292ea1100839a300cb142f0fede815b2c652433</citedby><cites>FETCH-LOGICAL-c3726-8da5aaf069e45881a1954cd1292ea1100839a300cb142f0fede815b2c652433</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fpola.28146$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpola.28146$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Kudo, Kenji</creatorcontrib><creatorcontrib>Fuse, Sawako</creatorcontrib><creatorcontrib>Furutani, Masahiro</creatorcontrib><creatorcontrib>Arimitsu, Koji</creatorcontrib><title>Imidazole-type thermal latent curing agents with high miscibility for one-component epoxy thermosetting resins</title><title>Journal of polymer science. Part A, Polymer chemistry</title><addtitle>J. Polym. Sci. Part A: Polym. Chem</addtitle><description>ABSTRACT
Epoxy resins are important thermosetting resins widely employed in industrial fields. Although the epoxy–imidazole curing system has attracted attention because of its reactivity, solidification of a liquid epoxy resin containing imidazoles proceeds gradually even at room temperature. This makes it difficult to use them for one‐component epoxy resin materials. Though powder‐type latent curing agents have been used for one‐component epoxy resin materials, they are difficult to apply for fabrication of fine industrial products due to their poor miscibility. To overcome this situation and to improve the shelf life of epoxy–imidazole compositions, we have developed a liquid‐type thermal latent curing agent 1, generating an imidazole with a thermal trigger via a retro‐Michael addition reaction. The latent curing agent 1 has superior miscibility toward epoxy resins; in addition, it was confirmed that the epoxy resin composition has both high reactivity at 150 °C, and long‐term storage stability at room temperature. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 2680–2688
A liquid‐type thermal latent curing agent 1 has been developed, which generates an imidazole with a thermal trigger via a retro‐Michael addition reaction. The latent curing agent 1 has superior miscibility toward epoxy resins; in addition, it is confirmed that the epoxy resin composition has both high reactivity at 150 °C, and long‐term storage stability at room temperature.</description><subject>crosslinking</subject><subject>Curing agents</subject><subject>Epoxy resins</subject><subject>Imidazole</subject><subject>liquid-type</subject><subject>Liquids</subject><subject>Miscibility</subject><subject>Reagents</subject><subject>retro-Michael addition reaction</subject><subject>Storage stability</subject><subject>thermal latent curing agent</subject><subject>thermosets</subject><subject>Thermosetting resins</subject><issn>0887-624X</issn><issn>1099-0518</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kEFv1DAQhS0EEkvLhV9giQtCSuux48Q5VqVsK60ookjlZnmzk10XJw62V2349fU20AMH5jIazfeeZh4h74CdAGP8dPTOnHAFZfWCLIA1TcEkqJdkwZSqi4qXP16TNzHeMZZ3Ui3IcNXbjfntHRZpGpGmHYbeOOpMwiHRdh_ssKVmm4dI723a0Z3d7mhvY2vX1tk00c4H6gcsWt-PuWcVjv5hmq18xJQOFgGjHeIxedUZF_Htn35Ebj5ffD-_LFbXy6vzs1XRippXhdoYaUzHqgZLqRQYaGTZboA3HA3kT5VojGCsXUPJO9bhBhXINW8ryUshjsiH2XUM_tceY9KHe9E5M6DfRw1KyFw11Bl9_w965_dhyLdlimU3UKXM1MeZaoOPMWCnx2B7EyYNTB-C14fg9VPwGYYZvrcOp_-Q-uv16uyvppg1NiZ8eNaY8FNXtailvv2y1HDzaQnfbldaiEeCzpZk</recordid><startdate>20160901</startdate><enddate>20160901</enddate><creator>Kudo, Kenji</creator><creator>Fuse, Sawako</creator><creator>Furutani, Masahiro</creator><creator>Arimitsu, Koji</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20160901</creationdate><title>Imidazole-type thermal latent curing agents with high miscibility for one-component epoxy thermosetting resins</title><author>Kudo, Kenji ; Fuse, Sawako ; Furutani, Masahiro ; Arimitsu, Koji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3726-8da5aaf069e45881a1954cd1292ea1100839a300cb142f0fede815b2c652433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>crosslinking</topic><topic>Curing agents</topic><topic>Epoxy resins</topic><topic>Imidazole</topic><topic>liquid-type</topic><topic>Liquids</topic><topic>Miscibility</topic><topic>Reagents</topic><topic>retro-Michael addition reaction</topic><topic>Storage stability</topic><topic>thermal latent curing agent</topic><topic>thermosets</topic><topic>Thermosetting resins</topic><toplevel>online_resources</toplevel><creatorcontrib>Kudo, Kenji</creatorcontrib><creatorcontrib>Fuse, Sawako</creatorcontrib><creatorcontrib>Furutani, Masahiro</creatorcontrib><creatorcontrib>Arimitsu, Koji</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of polymer science. Part A, Polymer chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kudo, Kenji</au><au>Fuse, Sawako</au><au>Furutani, Masahiro</au><au>Arimitsu, Koji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Imidazole-type thermal latent curing agents with high miscibility for one-component epoxy thermosetting resins</atitle><jtitle>Journal of polymer science. Part A, Polymer chemistry</jtitle><addtitle>J. Polym. Sci. Part A: Polym. Chem</addtitle><date>2016-09-01</date><risdate>2016</risdate><volume>54</volume><issue>17</issue><spage>2680</spage><epage>2688</epage><pages>2680-2688</pages><issn>0887-624X</issn><eissn>1099-0518</eissn><coden>JPACEC</coden><abstract>ABSTRACT
Epoxy resins are important thermosetting resins widely employed in industrial fields. Although the epoxy–imidazole curing system has attracted attention because of its reactivity, solidification of a liquid epoxy resin containing imidazoles proceeds gradually even at room temperature. This makes it difficult to use them for one‐component epoxy resin materials. Though powder‐type latent curing agents have been used for one‐component epoxy resin materials, they are difficult to apply for fabrication of fine industrial products due to their poor miscibility. To overcome this situation and to improve the shelf life of epoxy–imidazole compositions, we have developed a liquid‐type thermal latent curing agent 1, generating an imidazole with a thermal trigger via a retro‐Michael addition reaction. The latent curing agent 1 has superior miscibility toward epoxy resins; in addition, it was confirmed that the epoxy resin composition has both high reactivity at 150 °C, and long‐term storage stability at room temperature. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 2680–2688
A liquid‐type thermal latent curing agent 1 has been developed, which generates an imidazole with a thermal trigger via a retro‐Michael addition reaction. The latent curing agent 1 has superior miscibility toward epoxy resins; in addition, it is confirmed that the epoxy resin composition has both high reactivity at 150 °C, and long‐term storage stability at room temperature.</abstract><cop>Hoboken</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/pola.28146</doi><tpages>9</tpages></addata></record> |
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| source | Wiley Journals |
| subjects | crosslinking Curing agents Epoxy resins Imidazole liquid-type Liquids Miscibility Reagents retro-Michael addition reaction Storage stability thermal latent curing agent thermosets Thermosetting resins |
| title | Imidazole-type thermal latent curing agents with high miscibility for one-component epoxy thermosetting resins |
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