Synthesis, characterization, and self-assembly of amphiphilic fluorinated gradient copolymer
An amphiphilic copolymer of acrylic acid (AA) and 2,2,2‐trifluoroethyl methacrylate (TFEMA) was synthesized by reversible addition‐fragmentation transfer (RAFT) copolymerization, using a feed method for adding TFEMA. The kinetics of the RAFT copolymerization agreed well with those characteristic of...
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| Veröffentlicht in: | Journal of applied polymer science 2013-02, Vol.127 (3), p.1485-1492 |
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| creator | Chen, Yanjun Zhang, Yuying Wang, Yifeng Sun, Chong Zhang, Chaocan |
| description | An amphiphilic copolymer of acrylic acid (AA) and 2,2,2‐trifluoroethyl methacrylate (TFEMA) was synthesized by reversible addition‐fragmentation transfer (RAFT) copolymerization, using a feed method for adding TFEMA. The kinetics of the RAFT copolymerization agreed well with those characteristic of a first‐order reaction and the molecular weight of copolymers increased with the conversion increasing, both demonstrating that it proceeded in a controlled polymerization manner. Optimal copolymerization was achieved when the reaction was conducted at 70°C, using a molar ratio of TFEMA : AA : RAFT agent : initiator of 400 : 400 : 4 : 1. Analysis of instantaneous 1H‐NMR results proved that the obtained copolymer had a chain structure with AA segments gradually changing to TFEMA segments. The copolymer films had lower surface free energies and slightly microphase separation structures. The amphiphilic copolymer with gradient structures could self‐assemble to form aggregates in selective solvents. The type and composition of solvent mixtures had great effects on the morphology and sizes of aggregates, which were investigated by transmission electron microscopy and dynamic light scattering, respectively. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci., 2013 |
| doi_str_mv | 10.1002/app.37556 |
| format | Article |
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The kinetics of the RAFT copolymerization agreed well with those characteristic of a first‐order reaction and the molecular weight of copolymers increased with the conversion increasing, both demonstrating that it proceeded in a controlled polymerization manner. Optimal copolymerization was achieved when the reaction was conducted at 70°C, using a molar ratio of TFEMA : AA : RAFT agent : initiator of 400 : 400 : 4 : 1. Analysis of instantaneous 1H‐NMR results proved that the obtained copolymer had a chain structure with AA segments gradually changing to TFEMA segments. The copolymer films had lower surface free energies and slightly microphase separation structures. The amphiphilic copolymer with gradient structures could self‐assemble to form aggregates in selective solvents. The type and composition of solvent mixtures had great effects on the morphology and sizes of aggregates, which were investigated by transmission electron microscopy and dynamic light scattering, respectively. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci., 2013</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/app.37556</identifier><identifier>CODEN: JAPNAB</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Aggregates ; amphiphilic fluorinated copolymer ; Applied sciences ; Copolymerization ; Copolymers ; Exact sciences and technology ; gradient copolymer ; Materials science ; Organic polymers ; Physicochemistry of polymers ; Polymerization ; Polymers ; Polymers with particular properties ; Preparation, kinetics, thermodynamics, mechanism and catalysts ; RAFT ; Rafts ; Segments ; Self assembly ; Solvents</subject><ispartof>Journal of applied polymer science, 2013-02, Vol.127 (3), p.1485-1492</ispartof><rights>Copyright © 2012 Wiley Periodicals, Inc.</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3986-7f4e22a88b772b9d57a2812328b946d89c8c378175d107a622a38f6e8b80ed6e3</citedby><cites>FETCH-LOGICAL-c3986-7f4e22a88b772b9d57a2812328b946d89c8c378175d107a622a38f6e8b80ed6e3</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%2Fapp.37556$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fapp.37556$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26917322$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Yanjun</creatorcontrib><creatorcontrib>Zhang, Yuying</creatorcontrib><creatorcontrib>Wang, Yifeng</creatorcontrib><creatorcontrib>Sun, Chong</creatorcontrib><creatorcontrib>Zhang, Chaocan</creatorcontrib><title>Synthesis, characterization, and self-assembly of amphiphilic fluorinated gradient copolymer</title><title>Journal of applied polymer science</title><addtitle>J. Appl. Polym. Sci</addtitle><description>An amphiphilic copolymer of acrylic acid (AA) and 2,2,2‐trifluoroethyl methacrylate (TFEMA) was synthesized by reversible addition‐fragmentation transfer (RAFT) copolymerization, using a feed method for adding TFEMA. The kinetics of the RAFT copolymerization agreed well with those characteristic of a first‐order reaction and the molecular weight of copolymers increased with the conversion increasing, both demonstrating that it proceeded in a controlled polymerization manner. Optimal copolymerization was achieved when the reaction was conducted at 70°C, using a molar ratio of TFEMA : AA : RAFT agent : initiator of 400 : 400 : 4 : 1. Analysis of instantaneous 1H‐NMR results proved that the obtained copolymer had a chain structure with AA segments gradually changing to TFEMA segments. The copolymer films had lower surface free energies and slightly microphase separation structures. The amphiphilic copolymer with gradient structures could self‐assemble to form aggregates in selective solvents. The type and composition of solvent mixtures had great effects on the morphology and sizes of aggregates, which were investigated by transmission electron microscopy and dynamic light scattering, respectively. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci., 2013</description><subject>Aggregates</subject><subject>amphiphilic fluorinated copolymer</subject><subject>Applied sciences</subject><subject>Copolymerization</subject><subject>Copolymers</subject><subject>Exact sciences and technology</subject><subject>gradient copolymer</subject><subject>Materials science</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymerization</subject><subject>Polymers</subject><subject>Polymers with particular properties</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>RAFT</subject><subject>Rafts</subject><subject>Segments</subject><subject>Self assembly</subject><subject>Solvents</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp1kFtrFEEQRhtRcE188B8MiKCQSfqyfXsMQaNkiQEVX4SmpqfG7dhzsXsWHX-9HTfJgxAoqIc636H4CHnB6DGjlJ_ANB0LLaV6RFaMWl2vFTePyarcWG2slU_Js5yvKWVMUrUi3z4tw7zFHPJR5beQwM-Ywh-YwzgcVTC0VcbY1ZAz9k1cqrGroJ-2oUwMvuribkxhgBnb6nuCNuAwV36cxrj0mA7Jkw5ixue3-4B8eff289n7evPx_MPZ6ab2whpV626NnIMxjda8sa3UwA3jgpvGrlVrrDdeaMO0bBnVoAorTKfQNIZiq1AckNd775TGnzvMs-tD9hgjDDjusmNrYbWhgtOCvvwPvR53aSjfOca4lFwXrFBv9pRPY84JOzel0ENaHKPupmdXenb_ei7sq1sjZA-xSzD4kO8DXFmmBb9xnuy5XyHi8rDQnV5d3ZnrfSLkGX_fJyD9cEoXxH29PHfyYsMsk5dOi787Ippo</recordid><startdate>20130205</startdate><enddate>20130205</enddate><creator>Chen, Yanjun</creator><creator>Zhang, Yuying</creator><creator>Wang, Yifeng</creator><creator>Sun, Chong</creator><creator>Zhang, Chaocan</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20130205</creationdate><title>Synthesis, characterization, and self-assembly of amphiphilic fluorinated gradient copolymer</title><author>Chen, Yanjun ; Zhang, Yuying ; Wang, Yifeng ; Sun, Chong ; Zhang, Chaocan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3986-7f4e22a88b772b9d57a2812328b946d89c8c378175d107a622a38f6e8b80ed6e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Aggregates</topic><topic>amphiphilic fluorinated copolymer</topic><topic>Applied sciences</topic><topic>Copolymerization</topic><topic>Copolymers</topic><topic>Exact sciences and technology</topic><topic>gradient copolymer</topic><topic>Materials science</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymerization</topic><topic>Polymers</topic><topic>Polymers with particular properties</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>RAFT</topic><topic>Rafts</topic><topic>Segments</topic><topic>Self assembly</topic><topic>Solvents</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Yanjun</creatorcontrib><creatorcontrib>Zhang, Yuying</creatorcontrib><creatorcontrib>Wang, Yifeng</creatorcontrib><creatorcontrib>Sun, Chong</creatorcontrib><creatorcontrib>Zhang, Chaocan</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Yanjun</au><au>Zhang, Yuying</au><au>Wang, Yifeng</au><au>Sun, Chong</au><au>Zhang, Chaocan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis, characterization, and self-assembly of amphiphilic fluorinated gradient copolymer</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. Appl. Polym. Sci</addtitle><date>2013-02-05</date><risdate>2013</risdate><volume>127</volume><issue>3</issue><spage>1485</spage><epage>1492</epage><pages>1485-1492</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><coden>JAPNAB</coden><abstract>An amphiphilic copolymer of acrylic acid (AA) and 2,2,2‐trifluoroethyl methacrylate (TFEMA) was synthesized by reversible addition‐fragmentation transfer (RAFT) copolymerization, using a feed method for adding TFEMA. The kinetics of the RAFT copolymerization agreed well with those characteristic of a first‐order reaction and the molecular weight of copolymers increased with the conversion increasing, both demonstrating that it proceeded in a controlled polymerization manner. Optimal copolymerization was achieved when the reaction was conducted at 70°C, using a molar ratio of TFEMA : AA : RAFT agent : initiator of 400 : 400 : 4 : 1. Analysis of instantaneous 1H‐NMR results proved that the obtained copolymer had a chain structure with AA segments gradually changing to TFEMA segments. The copolymer films had lower surface free energies and slightly microphase separation structures. The amphiphilic copolymer with gradient structures could self‐assemble to form aggregates in selective solvents. The type and composition of solvent mixtures had great effects on the morphology and sizes of aggregates, which were investigated by transmission electron microscopy and dynamic light scattering, respectively. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci., 2013</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/app.37556</doi><tpages>8</tpages></addata></record> |
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| subjects | Aggregates amphiphilic fluorinated copolymer Applied sciences Copolymerization Copolymers Exact sciences and technology gradient copolymer Materials science Organic polymers Physicochemistry of polymers Polymerization Polymers Polymers with particular properties Preparation, kinetics, thermodynamics, mechanism and catalysts RAFT Rafts Segments Self assembly Solvents |
| title | Synthesis, characterization, and self-assembly of amphiphilic fluorinated gradient copolymer |
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