Headgroup Effect on Silane Structures at Buried Polymer/Silane and Polymer/Polymer Interfaces and Their Relations to Adhesion
Sum frequency generation (SFG) vibrational spectroscopy was used to study the effect of silane headgroups on the molecular interactions that occur between poly(ethylene terephthalate) (PET) and various epoxy silanes at the PET/silane and PET/silicone interfaces. Three different silanes were investig...
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| Veröffentlicht in: | Langmuir 2012-04, Vol.28 (14), p.6052-6059 |
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| creator | Zhang, Chi Shephard, Nick E Rhodes, Susan M Chen, Zhan |
| description | Sum frequency generation (SFG) vibrational spectroscopy was used to study the effect of silane headgroups on the molecular interactions that occur between poly(ethylene terephthalate) (PET) and various epoxy silanes at the PET/silane and PET/silicone interfaces. Three different silanes were investigated: (3-glycidoxypropyl) trimethoxysilane (γ-GPS), (3-glycidoxypropyl) methyl-dimethoxysilane (γ-GPMS), and (3-glycidoxypropyl) dimethyl-methoxysilane (γ-GPDMS). These silanes share the same backbone and epoxy end group but have different headgroups. SFG was used to examine the interfaces between PET and each of these silanes, as well as silanes mixed with methylvinylsiloxanol (MVS). We also examined the interfaces between PET and uncured or cured silicone with silanes or silane–MVS mixtures. Silanes with different headgroups were found to exhibit a variety of methoxy group interfacial segregation and ordering behaviors at various interfaces. The effect of MVS was also dependent upon silane headgroup choice, and the interfacial molecular structures of silane methoxy headgroups were found to differ at PET/silane and PET/silicone interfaces. Epoxy silanes have been widely used as adhesion promoters for polymer adhesives; therefore, the molecular structures probed using SFG were correlated to adhesion testing results to understand the molecular mechanisms of silicone-polymer adhesion. Our results demonstrated that silane methoxy headgroups play important roles in adhesion at the PET/silicone interfaces. The presence of MVS can change interfacial methoxy segregation and ordering, leading to different adhesion strengths. |
| doi_str_mv | 10.1021/la300004x |
| format | Article |
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Three different silanes were investigated: (3-glycidoxypropyl) trimethoxysilane (γ-GPS), (3-glycidoxypropyl) methyl-dimethoxysilane (γ-GPMS), and (3-glycidoxypropyl) dimethyl-methoxysilane (γ-GPDMS). These silanes share the same backbone and epoxy end group but have different headgroups. SFG was used to examine the interfaces between PET and each of these silanes, as well as silanes mixed with methylvinylsiloxanol (MVS). We also examined the interfaces between PET and uncured or cured silicone with silanes or silane–MVS mixtures. Silanes with different headgroups were found to exhibit a variety of methoxy group interfacial segregation and ordering behaviors at various interfaces. The effect of MVS was also dependent upon silane headgroup choice, and the interfacial molecular structures of silane methoxy headgroups were found to differ at PET/silane and PET/silicone interfaces. Epoxy silanes have been widely used as adhesion promoters for polymer adhesives; therefore, the molecular structures probed using SFG were correlated to adhesion testing results to understand the molecular mechanisms of silicone-polymer adhesion. Our results demonstrated that silane methoxy headgroups play important roles in adhesion at the PET/silicone interfaces. The presence of MVS can change interfacial methoxy segregation and ordering, leading to different adhesion strengths.</description><identifier>ISSN: 0743-7463</identifier><identifier>EISSN: 1520-5827</identifier><identifier>DOI: 10.1021/la300004x</identifier><identifier>PMID: 22424184</identifier><identifier>CODEN: LANGD5</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Adhesives - chemistry ; Chemistry ; Epoxy Compounds - chemistry ; Exact sciences and technology ; General and physical chemistry ; Polyethylene Terephthalates - chemistry ; Silanes - chemistry ; Silicones - chemistry ; Surface physical chemistry ; Surface Properties</subject><ispartof>Langmuir, 2012-04, Vol.28 (14), p.6052-6059</ispartof><rights>Copyright © 2012 American Chemical Society</rights><rights>2015 INIST-CNRS</rights><rights>2012 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a344t-384efda9106c19e976869212dc8693ed692687d04d9f50a702fc998dad7f78613</citedby><cites>FETCH-LOGICAL-a344t-384efda9106c19e976869212dc8693ed692687d04d9f50a702fc998dad7f78613</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/la300004x$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/la300004x$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,2752,27053,27901,27902,56713,56763</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25790155$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22424184$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Chi</creatorcontrib><creatorcontrib>Shephard, Nick E</creatorcontrib><creatorcontrib>Rhodes, Susan M</creatorcontrib><creatorcontrib>Chen, Zhan</creatorcontrib><title>Headgroup Effect on Silane Structures at Buried Polymer/Silane and Polymer/Polymer Interfaces and Their Relations to Adhesion</title><title>Langmuir</title><addtitle>Langmuir</addtitle><description>Sum frequency generation (SFG) vibrational spectroscopy was used to study the effect of silane headgroups on the molecular interactions that occur between poly(ethylene terephthalate) (PET) and various epoxy silanes at the PET/silane and PET/silicone interfaces. Three different silanes were investigated: (3-glycidoxypropyl) trimethoxysilane (γ-GPS), (3-glycidoxypropyl) methyl-dimethoxysilane (γ-GPMS), and (3-glycidoxypropyl) dimethyl-methoxysilane (γ-GPDMS). These silanes share the same backbone and epoxy end group but have different headgroups. SFG was used to examine the interfaces between PET and each of these silanes, as well as silanes mixed with methylvinylsiloxanol (MVS). We also examined the interfaces between PET and uncured or cured silicone with silanes or silane–MVS mixtures. Silanes with different headgroups were found to exhibit a variety of methoxy group interfacial segregation and ordering behaviors at various interfaces. The effect of MVS was also dependent upon silane headgroup choice, and the interfacial molecular structures of silane methoxy headgroups were found to differ at PET/silane and PET/silicone interfaces. Epoxy silanes have been widely used as adhesion promoters for polymer adhesives; therefore, the molecular structures probed using SFG were correlated to adhesion testing results to understand the molecular mechanisms of silicone-polymer adhesion. Our results demonstrated that silane methoxy headgroups play important roles in adhesion at the PET/silicone interfaces. The presence of MVS can change interfacial methoxy segregation and ordering, leading to different adhesion strengths.</description><subject>Adhesives - chemistry</subject><subject>Chemistry</subject><subject>Epoxy Compounds - chemistry</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Polyethylene Terephthalates - chemistry</subject><subject>Silanes - chemistry</subject><subject>Silicones - chemistry</subject><subject>Surface physical chemistry</subject><subject>Surface Properties</subject><issn>0743-7463</issn><issn>1520-5827</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpt0E1P3DAQBmCragXLlkP_QOVLhTgE_JU4PlLEx0pIRUDP0dQel6BsvLUdqRz473hFyl7qy2jsx2P5JeQLZyecCX46gGRlqb8fyILXglV1K_RHsmBayUqrRu6Tg5SeCjFSmT2yL4QSirdqQV6uEdzvGKYNvfAebaZhpPf9ACPS-xwnm6eIiUKm36fYo6O3YXheYzydDYy7rbnS1ZgxerDbe-X44RH7SO9wgNyHMdEc6Jl7xFSaz-SThyHh4VyX5OflxcP5dXXz42p1fnZTgVQqV7JV6B0YzhrLDRrdtI0RXDhbqkRXmqbVjilnfM1AM-GtMa0Dp71uGy6X5Oht7iaGPxOm3K37ZHHYfiFMqTNGSq5No4s8fpM2hpQi-m4T-zXE546zbht29x52sV_nqdOvNbp3-S_dAr7NAJKFwUcYbZ92rtaG8breObCpewpTHEsY_3nwFaGBkx8</recordid><startdate>20120410</startdate><enddate>20120410</enddate><creator>Zhang, Chi</creator><creator>Shephard, Nick E</creator><creator>Rhodes, Susan M</creator><creator>Chen, Zhan</creator><general>American Chemical Society</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20120410</creationdate><title>Headgroup Effect on Silane Structures at Buried Polymer/Silane and Polymer/Polymer Interfaces and Their Relations to Adhesion</title><author>Zhang, Chi ; Shephard, Nick E ; Rhodes, Susan M ; Chen, Zhan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a344t-384efda9106c19e976869212dc8693ed692687d04d9f50a702fc998dad7f78613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Adhesives - chemistry</topic><topic>Chemistry</topic><topic>Epoxy Compounds - chemistry</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Polyethylene Terephthalates - chemistry</topic><topic>Silanes - chemistry</topic><topic>Silicones - chemistry</topic><topic>Surface physical chemistry</topic><topic>Surface Properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Chi</creatorcontrib><creatorcontrib>Shephard, Nick E</creatorcontrib><creatorcontrib>Rhodes, Susan M</creatorcontrib><creatorcontrib>Chen, Zhan</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Langmuir</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Chi</au><au>Shephard, Nick E</au><au>Rhodes, Susan M</au><au>Chen, Zhan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Headgroup Effect on Silane Structures at Buried Polymer/Silane and Polymer/Polymer Interfaces and Their Relations to Adhesion</atitle><jtitle>Langmuir</jtitle><addtitle>Langmuir</addtitle><date>2012-04-10</date><risdate>2012</risdate><volume>28</volume><issue>14</issue><spage>6052</spage><epage>6059</epage><pages>6052-6059</pages><issn>0743-7463</issn><eissn>1520-5827</eissn><coden>LANGD5</coden><abstract>Sum frequency generation (SFG) vibrational spectroscopy was used to study the effect of silane headgroups on the molecular interactions that occur between poly(ethylene terephthalate) (PET) and various epoxy silanes at the PET/silane and PET/silicone interfaces. Three different silanes were investigated: (3-glycidoxypropyl) trimethoxysilane (γ-GPS), (3-glycidoxypropyl) methyl-dimethoxysilane (γ-GPMS), and (3-glycidoxypropyl) dimethyl-methoxysilane (γ-GPDMS). These silanes share the same backbone and epoxy end group but have different headgroups. SFG was used to examine the interfaces between PET and each of these silanes, as well as silanes mixed with methylvinylsiloxanol (MVS). We also examined the interfaces between PET and uncured or cured silicone with silanes or silane–MVS mixtures. Silanes with different headgroups were found to exhibit a variety of methoxy group interfacial segregation and ordering behaviors at various interfaces. The effect of MVS was also dependent upon silane headgroup choice, and the interfacial molecular structures of silane methoxy headgroups were found to differ at PET/silane and PET/silicone interfaces. Epoxy silanes have been widely used as adhesion promoters for polymer adhesives; therefore, the molecular structures probed using SFG were correlated to adhesion testing results to understand the molecular mechanisms of silicone-polymer adhesion. Our results demonstrated that silane methoxy headgroups play important roles in adhesion at the PET/silicone interfaces. The presence of MVS can change interfacial methoxy segregation and ordering, leading to different adhesion strengths.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>22424184</pmid><doi>10.1021/la300004x</doi><tpages>8</tpages></addata></record> |
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| subjects | Adhesives - chemistry Chemistry Epoxy Compounds - chemistry Exact sciences and technology General and physical chemistry Polyethylene Terephthalates - chemistry Silanes - chemistry Silicones - chemistry Surface physical chemistry Surface Properties |
| title | Headgroup Effect on Silane Structures at Buried Polymer/Silane and Polymer/Polymer Interfaces and Their Relations to Adhesion |
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