Preparation of magnetic microspheres with thiol-containing polymer brushes and immobilization of gold nanoparticles in the brush layer
[Display omitted] ► Crosslinked polymer microspheres with embedded magnetite nanoparticles. ► Magnetic microspheres with polymeric brushes containing thiol groups. ► Magnetic microspheres with polymeric brushes containing gold nanoparticles. ► Gold nanoparticle-immobilized magnetic microspheres as a...
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| Veröffentlicht in: | European polymer journal 2011-10, Vol.47 (10), p.1877-1884 |
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| container_title | European polymer journal |
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| creator | Li, Xiutao Liu, Yan Xu, Zhenhua Yan, Husheng |
| description | [Display omitted]
► Crosslinked polymer microspheres with embedded magnetite nanoparticles. ► Magnetic microspheres with polymeric brushes containing thiol groups. ► Magnetic microspheres with polymeric brushes containing gold nanoparticles. ► Gold nanoparticle-immobilized magnetic microspheres as a catalyst.
Narrow-disperse magnetic microspheres were prepared by alkaline coprecipitation of Fe
2+ and Fe
3+ ions within poly(acrylic acid–divinylbenzene) microspheres that were prepared by distillation–precipitation copolymerization. Magnetic microspheres with polymer brushes that contain epoxy groups were prepared by graft copolymerization of glycidyl methacrylate and glycerol monomethacrylate via atom transfer radical polymerization (ATRP) from the magnetic microsphere surfaces. Subsequently, magnetic microspheres with thiol-containing polymer brushes were prepared by treating the epoxy group-containing magnetic microspheres with sodium hydrosulfide. Gold nanoparticles were immobilized in the brush layer of the thiol-containing magnetic microspheres through Au–S coordination. The catalytic activity of the gold nanoparticle-immobilized magnetic microspheres was investigated using the reduction of 4-nitrophenol to 4-aminophenol with sodium borohydride as a model reaction. The catalyst could be reused for over 10 cycles without noticeable loss of catalytic activity. |
| doi_str_mv | 10.1016/j.eurpolymj.2011.07.010 |
| format | Article |
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► Crosslinked polymer microspheres with embedded magnetite nanoparticles. ► Magnetic microspheres with polymeric brushes containing thiol groups. ► Magnetic microspheres with polymeric brushes containing gold nanoparticles. ► Gold nanoparticle-immobilized magnetic microspheres as a catalyst.
Narrow-disperse magnetic microspheres were prepared by alkaline coprecipitation of Fe
2+ and Fe
3+ ions within poly(acrylic acid–divinylbenzene) microspheres that were prepared by distillation–precipitation copolymerization. Magnetic microspheres with polymer brushes that contain epoxy groups were prepared by graft copolymerization of glycidyl methacrylate and glycerol monomethacrylate via atom transfer radical polymerization (ATRP) from the magnetic microsphere surfaces. Subsequently, magnetic microspheres with thiol-containing polymer brushes were prepared by treating the epoxy group-containing magnetic microspheres with sodium hydrosulfide. Gold nanoparticles were immobilized in the brush layer of the thiol-containing magnetic microspheres through Au–S coordination. The catalytic activity of the gold nanoparticle-immobilized magnetic microspheres was investigated using the reduction of 4-nitrophenol to 4-aminophenol with sodium borohydride as a model reaction. The catalyst could be reused for over 10 cycles without noticeable loss of catalytic activity.</description><identifier>ISSN: 0014-3057</identifier><identifier>EISSN: 1873-1945</identifier><identifier>DOI: 10.1016/j.eurpolymj.2011.07.010</identifier><identifier>CODEN: EUPJAG</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Brushes ; Catalysis ; Catalysts: preparations and properties ; Catalytic activity ; Chemistry ; Copolymerization ; Exact sciences and technology ; General and physical chemistry ; Gold ; Gold nanoparticles ; Heterogeneous catalysis ; Magnetic particles ; Microspheres ; Nanoparticles ; Nanostructure ; Organic polymers ; Physicochemistry of polymers ; Polymeric microspheres ; Polymers with particular properties ; Preparation, kinetics, thermodynamics, mechanism and catalysts ; Sodium ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><ispartof>European polymer journal, 2011-10, Vol.47 (10), p.1877-1884</ispartof><rights>2011 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c377t-6f014c2084ccc168b6586de4ad39990fa74256e958bf7fb03b2ad517974c58613</citedby><cites>FETCH-LOGICAL-c377t-6f014c2084ccc168b6586de4ad39990fa74256e958bf7fb03b2ad517974c58613</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0014305711002588$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24562894$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Li, Xiutao</creatorcontrib><creatorcontrib>Liu, Yan</creatorcontrib><creatorcontrib>Xu, Zhenhua</creatorcontrib><creatorcontrib>Yan, Husheng</creatorcontrib><title>Preparation of magnetic microspheres with thiol-containing polymer brushes and immobilization of gold nanoparticles in the brush layer</title><title>European polymer journal</title><description>[Display omitted]
► Crosslinked polymer microspheres with embedded magnetite nanoparticles. ► Magnetic microspheres with polymeric brushes containing thiol groups. ► Magnetic microspheres with polymeric brushes containing gold nanoparticles. ► Gold nanoparticle-immobilized magnetic microspheres as a catalyst.
Narrow-disperse magnetic microspheres were prepared by alkaline coprecipitation of Fe
2+ and Fe
3+ ions within poly(acrylic acid–divinylbenzene) microspheres that were prepared by distillation–precipitation copolymerization. Magnetic microspheres with polymer brushes that contain epoxy groups were prepared by graft copolymerization of glycidyl methacrylate and glycerol monomethacrylate via atom transfer radical polymerization (ATRP) from the magnetic microsphere surfaces. Subsequently, magnetic microspheres with thiol-containing polymer brushes were prepared by treating the epoxy group-containing magnetic microspheres with sodium hydrosulfide. Gold nanoparticles were immobilized in the brush layer of the thiol-containing magnetic microspheres through Au–S coordination. The catalytic activity of the gold nanoparticle-immobilized magnetic microspheres was investigated using the reduction of 4-nitrophenol to 4-aminophenol with sodium borohydride as a model reaction. The catalyst could be reused for over 10 cycles without noticeable loss of catalytic activity.</description><subject>Applied sciences</subject><subject>Brushes</subject><subject>Catalysis</subject><subject>Catalysts: preparations and properties</subject><subject>Catalytic activity</subject><subject>Chemistry</subject><subject>Copolymerization</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Gold</subject><subject>Gold nanoparticles</subject><subject>Heterogeneous catalysis</subject><subject>Magnetic particles</subject><subject>Microspheres</subject><subject>Nanoparticles</subject><subject>Nanostructure</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymeric microspheres</subject><subject>Polymers with particular properties</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>Sodium</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><issn>0014-3057</issn><issn>1873-1945</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkM1u1DAUhS0EEkPpM9QbxCrBjhM7XlYVf1KldkHXluPczNyRYwc7AxoeoM-Nh6lmy-puvnOO7kfIDWc1Z1x-2tdwSEv0x3lfN4zzmqmacfaKbHivRMV1270mG8Z4WwnWqbfkXc57xpgSUmzI82OCxSa7Ygw0TnS22wArOjqjSzEvO0iQ6W9cd3TdYfSVi2G1GDBs6b9RSHRIh7wrlA0jxXmOA3r8c2ncRj_SYEMsM6XYFxBDKYNzjnp7hPSevJmsz3D9cq_I05fPP-6-VfcPX7_f3d5XTii1VnIqb7iG9a1zjst-kF0vR2jtKLTWbLKqbToJuuuHSU0DE0Njx44rrVpXSC6uyMdz75LizwPk1cyYHXhvA8RDNrqRohjTJ1KdyZOGnGAyS8LZpqPhzJzEm725iDcn8YYpU8SX5IeXDZud9VOywWG-xJu2k02v28LdnjkoD_9CSCY7hOBgxARuNWPE_279BX_eoXY</recordid><startdate>20111001</startdate><enddate>20111001</enddate><creator>Li, Xiutao</creator><creator>Liu, Yan</creator><creator>Xu, Zhenhua</creator><creator>Yan, Husheng</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20111001</creationdate><title>Preparation of magnetic microspheres with thiol-containing polymer brushes and immobilization of gold nanoparticles in the brush layer</title><author>Li, Xiutao ; Liu, Yan ; Xu, Zhenhua ; Yan, Husheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c377t-6f014c2084ccc168b6586de4ad39990fa74256e958bf7fb03b2ad517974c58613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Applied sciences</topic><topic>Brushes</topic><topic>Catalysis</topic><topic>Catalysts: preparations and properties</topic><topic>Catalytic activity</topic><topic>Chemistry</topic><topic>Copolymerization</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Gold</topic><topic>Gold nanoparticles</topic><topic>Heterogeneous catalysis</topic><topic>Magnetic particles</topic><topic>Microspheres</topic><topic>Nanoparticles</topic><topic>Nanostructure</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymeric microspheres</topic><topic>Polymers with particular properties</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>Sodium</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Xiutao</creatorcontrib><creatorcontrib>Liu, Yan</creatorcontrib><creatorcontrib>Xu, Zhenhua</creatorcontrib><creatorcontrib>Yan, Husheng</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>European polymer journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Xiutao</au><au>Liu, Yan</au><au>Xu, Zhenhua</au><au>Yan, Husheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation of magnetic microspheres with thiol-containing polymer brushes and immobilization of gold nanoparticles in the brush layer</atitle><jtitle>European polymer journal</jtitle><date>2011-10-01</date><risdate>2011</risdate><volume>47</volume><issue>10</issue><spage>1877</spage><epage>1884</epage><pages>1877-1884</pages><issn>0014-3057</issn><eissn>1873-1945</eissn><coden>EUPJAG</coden><abstract>[Display omitted]
► Crosslinked polymer microspheres with embedded magnetite nanoparticles. ► Magnetic microspheres with polymeric brushes containing thiol groups. ► Magnetic microspheres with polymeric brushes containing gold nanoparticles. ► Gold nanoparticle-immobilized magnetic microspheres as a catalyst.
Narrow-disperse magnetic microspheres were prepared by alkaline coprecipitation of Fe
2+ and Fe
3+ ions within poly(acrylic acid–divinylbenzene) microspheres that were prepared by distillation–precipitation copolymerization. Magnetic microspheres with polymer brushes that contain epoxy groups were prepared by graft copolymerization of glycidyl methacrylate and glycerol monomethacrylate via atom transfer radical polymerization (ATRP) from the magnetic microsphere surfaces. Subsequently, magnetic microspheres with thiol-containing polymer brushes were prepared by treating the epoxy group-containing magnetic microspheres with sodium hydrosulfide. Gold nanoparticles were immobilized in the brush layer of the thiol-containing magnetic microspheres through Au–S coordination. The catalytic activity of the gold nanoparticle-immobilized magnetic microspheres was investigated using the reduction of 4-nitrophenol to 4-aminophenol with sodium borohydride as a model reaction. The catalyst could be reused for over 10 cycles without noticeable loss of catalytic activity.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.eurpolymj.2011.07.010</doi><tpages>8</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Brushes Catalysis Catalysts: preparations and properties Catalytic activity Chemistry Copolymerization Exact sciences and technology General and physical chemistry Gold Gold nanoparticles Heterogeneous catalysis Magnetic particles Microspheres Nanoparticles Nanostructure Organic polymers Physicochemistry of polymers Polymeric microspheres Polymers with particular properties Preparation, kinetics, thermodynamics, mechanism and catalysts Sodium Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
| title | Preparation of magnetic microspheres with thiol-containing polymer brushes and immobilization of gold nanoparticles in the brush layer |
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