Kinetics and mechanistic investigation of epoxy–anhydride compositions cured with quaternary phosphonium salts as accelerators
Mechanism and curing kinetics of bisphenol A epoxy resin–iso‐methyltetrahydrophthalic anhydride compositions using quaternary phosphonium salts as accelerators were investigated by differential scanning calorimetry (DSC) and electrospray mass‐spectrometry (ESI‐MS). The DSC method was applied to inve...
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| Veröffentlicht in: | Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2016-04, Vol.54 (8), p.1088-1097 |
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| container_title | Journal of polymer science. Part A, Polymer chemistry |
| container_volume | 54 |
| creator | Amirova, Lyaysan R. Burilov, Alexander R. Amirova, Liliya M. Bauer, Ingmar Habicher, Wolf D. |
| description | Mechanism and curing kinetics of bisphenol A epoxy resin–iso‐methyltetrahydrophthalic anhydride compositions using quaternary phosphonium salts as accelerators were investigated by differential scanning calorimetry (DSC) and electrospray mass‐spectrometry (ESI‐MS). The DSC method was applied to investigate curing kinetics and apparent activation energy values for the overall curing process. The DSC results showed that some of the phosphonium salts lead to a lower activation energy, that means they are more effective accelerators for the curing of epoxy–anhydride systems. The mechanism of curing was studied by ESI‐MS using the model reaction of epichlorohydrin (E) with phthalic anhydride (PA) in the presence of phosphonium salts or 2‐methylimidazole. Products containing the alkyl moiety of the phosphonium salt in form of alkyl esters could be identified. This suggests that the phosphonium salts activate the anhydride by electrophilic attack. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 1088–1097 |
| doi_str_mv | 10.1002/pola.27946 |
| format | Article |
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The DSC method was applied to investigate curing kinetics and apparent activation energy values for the overall curing process. The DSC results showed that some of the phosphonium salts lead to a lower activation energy, that means they are more effective accelerators for the curing of epoxy–anhydride systems. The mechanism of curing was studied by ESI‐MS using the model reaction of epichlorohydrin (E) with phthalic anhydride (PA) in the presence of phosphonium salts or 2‐methylimidazole. Products containing the alkyl moiety of the phosphonium salt in form of alkyl esters could be identified. This suggests that the phosphonium salts activate the anhydride by electrophilic attack. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 1088–1097</description><identifier>ISSN: 0887-624X</identifier><identifier>EISSN: 1099-0518</identifier><identifier>DOI: 10.1002/pola.27946</identifier><identifier>CODEN: JPACEC</identifier><language>eng</language><publisher>Hoboken: Wiley</publisher><subject>Accelerators ; Activation energy ; Anhydrides ; cure kinetics ; Curing ; curing mechanism ; Differential scanning calorimetry ; Epichlorohydrin ; epoxy-anhydride ; Esters ; Phthalic anhydride ; quaternary phosphonium salts</subject><ispartof>Journal of polymer science. 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Part A, Polymer chemistry</title><addtitle>J. Polym. Sci. Part A: Polym. Chem</addtitle><description>Mechanism and curing kinetics of bisphenol A epoxy resin–iso‐methyltetrahydrophthalic anhydride compositions using quaternary phosphonium salts as accelerators were investigated by differential scanning calorimetry (DSC) and electrospray mass‐spectrometry (ESI‐MS). The DSC method was applied to investigate curing kinetics and apparent activation energy values for the overall curing process. The DSC results showed that some of the phosphonium salts lead to a lower activation energy, that means they are more effective accelerators for the curing of epoxy–anhydride systems. The mechanism of curing was studied by ESI‐MS using the model reaction of epichlorohydrin (E) with phthalic anhydride (PA) in the presence of phosphonium salts or 2‐methylimidazole. Products containing the alkyl moiety of the phosphonium salt in form of alkyl esters could be identified. This suggests that the phosphonium salts activate the anhydride by electrophilic attack. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 1088–1097</description><subject>Accelerators</subject><subject>Activation energy</subject><subject>Anhydrides</subject><subject>cure kinetics</subject><subject>Curing</subject><subject>curing mechanism</subject><subject>Differential scanning calorimetry</subject><subject>Epichlorohydrin</subject><subject>epoxy-anhydride</subject><subject>Esters</subject><subject>Phthalic anhydride</subject><subject>quaternary phosphonium salts</subject><issn>0887-624X</issn><issn>1099-0518</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kc1u1DAUhS0EEkNhwwtgiQ1CSuuf-CfLtioFOlAQVHRneRy745LYqZ3Qzq7vwBvyJPU0wIIFkq9sXX_n2kcHgOcY7WKEyN4QO71LRFPzB2CBUdNUiGH5ECyQlKLipD5_DJ7kfIlQuWNyAW5PfLCjNxnq0MLemrUOPpcG9OGHLYcLPfoYYHTQDvFm8-v2pw7rTZt8a6GJ_RCz3wIZminZFl77cQ2vJj3aFHTawGEdc6ngpx5m3Y3lnbKMsZ1NeowpPwWPnO6yffZ73wFnb46-Hr6tlqfH7w73l5WpOeeVpoSuVpYwwzA3yEjXtLKWwpGWcFyXHl8Js5KGNYxSgxxtLdfccmdcw5imO-DVPHdI8WoqzlTvc_lGp4ONU1ZYIlRLTDgt6Mt_0Ms4FTtdoYRATOIGi0K9nimTYs7JOjUk3xfPCiO1DUNtw1D3YRQYz_C17-zmP6T6dLrc_6OpZk3Jw9781ej0XXFBBVPfPh6rD-Tg8wE_f69w4V_MvNNR6Yvkszr7QhDmqJQkoqZ35qSpZw</recordid><startdate>20160415</startdate><enddate>20160415</enddate><creator>Amirova, Lyaysan R.</creator><creator>Burilov, Alexander R.</creator><creator>Amirova, Liliya M.</creator><creator>Bauer, Ingmar</creator><creator>Habicher, Wolf D.</creator><general>Wiley</general><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>FBQ</scope><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20160415</creationdate><title>Kinetics and mechanistic investigation of epoxy–anhydride compositions cured with quaternary phosphonium salts as accelerators</title><author>Amirova, Lyaysan R. ; Burilov, Alexander R. ; Amirova, Liliya M. ; Bauer, Ingmar ; Habicher, Wolf D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4666-a323bbe25c516c0c8f9d8487f2d261416c6b7cb8c59533c0f3de6a6e6fcf955a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Accelerators</topic><topic>Activation energy</topic><topic>Anhydrides</topic><topic>cure kinetics</topic><topic>Curing</topic><topic>curing mechanism</topic><topic>Differential scanning calorimetry</topic><topic>Epichlorohydrin</topic><topic>epoxy-anhydride</topic><topic>Esters</topic><topic>Phthalic anhydride</topic><topic>quaternary phosphonium salts</topic><toplevel>online_resources</toplevel><creatorcontrib>Amirova, Lyaysan R.</creatorcontrib><creatorcontrib>Burilov, Alexander R.</creatorcontrib><creatorcontrib>Amirova, Liliya M.</creatorcontrib><creatorcontrib>Bauer, Ingmar</creatorcontrib><creatorcontrib>Habicher, Wolf D.</creatorcontrib><collection>AGRIS</collection><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>Amirova, Lyaysan R.</au><au>Burilov, Alexander R.</au><au>Amirova, Liliya M.</au><au>Bauer, Ingmar</au><au>Habicher, Wolf D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Kinetics and mechanistic investigation of epoxy–anhydride compositions cured with quaternary phosphonium salts as accelerators</atitle><jtitle>Journal of polymer science. Part A, Polymer chemistry</jtitle><addtitle>J. Polym. Sci. Part A: Polym. Chem</addtitle><date>2016-04-15</date><risdate>2016</risdate><volume>54</volume><issue>8</issue><spage>1088</spage><epage>1097</epage><pages>1088-1097</pages><issn>0887-624X</issn><eissn>1099-0518</eissn><coden>JPACEC</coden><abstract>Mechanism and curing kinetics of bisphenol A epoxy resin–iso‐methyltetrahydrophthalic anhydride compositions using quaternary phosphonium salts as accelerators were investigated by differential scanning calorimetry (DSC) and electrospray mass‐spectrometry (ESI‐MS). The DSC method was applied to investigate curing kinetics and apparent activation energy values for the overall curing process. The DSC results showed that some of the phosphonium salts lead to a lower activation energy, that means they are more effective accelerators for the curing of epoxy–anhydride systems. The mechanism of curing was studied by ESI‐MS using the model reaction of epichlorohydrin (E) with phthalic anhydride (PA) in the presence of phosphonium salts or 2‐methylimidazole. Products containing the alkyl moiety of the phosphonium salt in form of alkyl esters could be identified. This suggests that the phosphonium salts activate the anhydride by electrophilic attack. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 1088–1097</abstract><cop>Hoboken</cop><pub>Wiley</pub><doi>10.1002/pola.27946</doi><tpages>10</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Accelerators Activation energy Anhydrides cure kinetics Curing curing mechanism Differential scanning calorimetry Epichlorohydrin epoxy-anhydride Esters Phthalic anhydride quaternary phosphonium salts |
| title | Kinetics and mechanistic investigation of epoxy–anhydride compositions cured with quaternary phosphonium salts as accelerators |
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