Free radical two step synthesis of styrene and acrylate block copolymers with disulphide initiators
Controlled two step block copolymerization of styrene, methyl methacrylate and ethyl acrylate with aliphatic and aromatic disulphides under UV irradiation took place in bulk and in THF solution. In the first step of the polymerization, the most reactive system was ethyl acrylate with aromatic disulp...
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| Veröffentlicht in: | Polymer international 1995-01, Vol.36 (1), p.13-22 |
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| creator | Opresnik, Marko Šebenik, Anton |
| description | Controlled two step block copolymerization of styrene, methyl methacrylate and ethyl acrylate with aliphatic and aromatic disulphides under UV irradiation took place in bulk and in THF solution. In the first step of the polymerization, the most reactive system was ethyl acrylate with aromatic disulphides.
The molecular weights and yields of polymerizations increased with reaction time. The macromolecules were terminated by primary. SR radicals and by combination of two macroadicals which was observed by NMR spectroscopy. Aninsignificant portion of uninitiated photopolymerization was detected only for MMA. In the second step of polymerization, the purified macroinitiators from the first step reacted with additional monomers to form block copolymers with a small quantity of unreacted macroinitiator. The molecular weights of copolymers increased, the bonding segments between the blocks being detected by 1H NMR. The overall reaction is an insertion of monomers between two thiyl groups. |
| doi_str_mv | 10.1002/pi.1995.210360103 |
| format | Article |
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The molecular weights and yields of polymerizations increased with reaction time. The macromolecules were terminated by primary. SR radicals and by combination of two macroadicals which was observed by NMR spectroscopy. Aninsignificant portion of uninitiated photopolymerization was detected only for MMA. In the second step of polymerization, the purified macroinitiators from the first step reacted with additional monomers to form block copolymers with a small quantity of unreacted macroinitiator. The molecular weights of copolymers increased, the bonding segments between the blocks being detected by 1H NMR. The overall reaction is an insertion of monomers between two thiyl groups.</description><identifier>ISSN: 0959-8103</identifier><identifier>EISSN: 1097-0126</identifier><identifier>DOI: 10.1002/pi.1995.210360103</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>Applied sciences ; block copolymers ; determination of end-groups ; Exact sciences and technology ; living radical polymerization ; methyl methacrylate ; Organic polymers ; Physicochemistry of polymers ; Polymerization ; Preparation, kinetics, thermodynamics, mechanism and catalysts ; styrene</subject><ispartof>Polymer international, 1995-01, Vol.36 (1), p.13-22</ispartof><rights>1995 Society of Chemical Industry</rights><rights>1995 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3073-ce81682898dbf7051f6c3467bb4da2eba33490fa80e5d6c143b8ac9c2746700a3</citedby><cites>FETCH-LOGICAL-c3073-ce81682898dbf7051f6c3467bb4da2eba33490fa80e5d6c143b8ac9c2746700a3</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%2Fpi.1995.210360103$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpi.1995.210360103$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,4010,27900,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3348269$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Opresnik, Marko</creatorcontrib><creatorcontrib>Šebenik, Anton</creatorcontrib><title>Free radical two step synthesis of styrene and acrylate block copolymers with disulphide initiators</title><title>Polymer international</title><addtitle>Polym. Int</addtitle><description>Controlled two step block copolymerization of styrene, methyl methacrylate and ethyl acrylate with aliphatic and aromatic disulphides under UV irradiation took place in bulk and in THF solution. In the first step of the polymerization, the most reactive system was ethyl acrylate with aromatic disulphides.
The molecular weights and yields of polymerizations increased with reaction time. The macromolecules were terminated by primary. SR radicals and by combination of two macroadicals which was observed by NMR spectroscopy. Aninsignificant portion of uninitiated photopolymerization was detected only for MMA. In the second step of polymerization, the purified macroinitiators from the first step reacted with additional monomers to form block copolymers with a small quantity of unreacted macroinitiator. The molecular weights of copolymers increased, the bonding segments between the blocks being detected by 1H NMR. The overall reaction is an insertion of monomers between two thiyl groups.</description><subject>Applied sciences</subject><subject>block copolymers</subject><subject>determination of end-groups</subject><subject>Exact sciences and technology</subject><subject>living radical polymerization</subject><subject>methyl methacrylate</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymerization</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>styrene</subject><issn>0959-8103</issn><issn>1097-0126</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNqFkU-P0zAQxS0EEmXhA3DzAXFLGdtJbHODav9JFSBYtEfLcSaqWTcOdqqSb49XXVXcuMxIo997M3pDyFsGawbAP0x-zbRu1pyBaKGUZ2TFQMsKGG-fkxXoRleqzF-SVzn_AgCltV4Rd5UQabK9dzbQ-RhpnnGieRnnHWafaRzKZEk4IrVjT61LS7Az0i5E90BdnGJY9pgyPfp5R3ufD2Ha-R6pH_3s7RxTfk1eDDZkfPPUL8jPq8u7zU21_Xp9u_m0rZwAKSqHirWKK636bpDQsKF1om5l19W95dhZIWoNg1WATd86VotOWacdlwUCsOKCvD_5Tin-PmCezd5nhyHYEeMhGy6FklzUBWQn0KWYc8LBTMnvbVoMA_MYp5m8eYzTnOMsmndP5jaXqIZkR-fzWVhuU7zVBft4wo4-4PJ_X_Pt9t8d1UnsyxP-nMU2PZhWCtmY-y_X5vMN_Nje3X83G_EXvs6WvQ</recordid><startdate>199501</startdate><enddate>199501</enddate><creator>Opresnik, Marko</creator><creator>Šebenik, Anton</creator><general>John Wiley & Sons, Ltd</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>199501</creationdate><title>Free radical two step synthesis of styrene and acrylate block copolymers with disulphide initiators</title><author>Opresnik, Marko ; Šebenik, Anton</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3073-ce81682898dbf7051f6c3467bb4da2eba33490fa80e5d6c143b8ac9c2746700a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Applied sciences</topic><topic>block copolymers</topic><topic>determination of end-groups</topic><topic>Exact sciences and technology</topic><topic>living radical polymerization</topic><topic>methyl methacrylate</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymerization</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>styrene</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Opresnik, Marko</creatorcontrib><creatorcontrib>Šebenik, Anton</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Polymer international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Opresnik, Marko</au><au>Šebenik, Anton</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Free radical two step synthesis of styrene and acrylate block copolymers with disulphide initiators</atitle><jtitle>Polymer international</jtitle><addtitle>Polym. Int</addtitle><date>1995-01</date><risdate>1995</risdate><volume>36</volume><issue>1</issue><spage>13</spage><epage>22</epage><pages>13-22</pages><issn>0959-8103</issn><eissn>1097-0126</eissn><abstract>Controlled two step block copolymerization of styrene, methyl methacrylate and ethyl acrylate with aliphatic and aromatic disulphides under UV irradiation took place in bulk and in THF solution. In the first step of the polymerization, the most reactive system was ethyl acrylate with aromatic disulphides.
The molecular weights and yields of polymerizations increased with reaction time. The macromolecules were terminated by primary. SR radicals and by combination of two macroadicals which was observed by NMR spectroscopy. Aninsignificant portion of uninitiated photopolymerization was detected only for MMA. In the second step of polymerization, the purified macroinitiators from the first step reacted with additional monomers to form block copolymers with a small quantity of unreacted macroinitiator. The molecular weights of copolymers increased, the bonding segments between the blocks being detected by 1H NMR. The overall reaction is an insertion of monomers between two thiyl groups.</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><doi>10.1002/pi.1995.210360103</doi><tpages>10</tpages></addata></record> |
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| identifier | ISSN: 0959-8103 |
| ispartof | Polymer international, 1995-01, Vol.36 (1), p.13-22 |
| issn | 0959-8103 1097-0126 |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Applied sciences block copolymers determination of end-groups Exact sciences and technology living radical polymerization methyl methacrylate Organic polymers Physicochemistry of polymers Polymerization Preparation, kinetics, thermodynamics, mechanism and catalysts styrene |
| title | Free radical two step synthesis of styrene and acrylate block copolymers with disulphide initiators |
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