Preparation of Cadmium Selenide−Polyolefin Composites from Functional Phosphine Oxides and Ruthenium-Based Metathesis
Cadmium selenide nanoparticles, prepared by known methods, were stabilized with functional phosphine oxide 1, then used to support the polymerization of cyclic olefins radially outward from the surface by ruthenium-catalyzed ring-opening metathesis polymerization (ROMP). The conversion of compound 1...
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| Veröffentlicht in: | Journal of the American Chemical Society 2002-05, Vol.124 (20), p.5729-5733 |
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| container_issue | 20 |
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| container_title | Journal of the American Chemical Society |
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| creator | Skaff, Habib Ilker, M. Firat Coughlin, E. Bryan Emrick, Todd |
| description | Cadmium selenide nanoparticles, prepared by known methods, were stabilized with functional phosphine oxide 1, then used to support the polymerization of cyclic olefins radially outward from the surface by ruthenium-catalyzed ring-opening metathesis polymerization (ROMP). The conversion of compound 1 into the new metathesis catalyst 3 by carbene exchange and the subsequent polymerization of cyclic olefins were observed spectroscopically by 1H NMR to afford for example CdSe−polycyclooctene composite 6. Transmission electron micrographs on thin films of these composites showed good nanoparticle dispersion. This is in stark contrast to the substantial nanoparticle aggregation observed when similar polymerizations were performed in the presence of conventional TOPO-covered nanoparticles. The methods reported here to prepare composite product 6 are applicable to other cyclic olefins, and suggest that this chemistry will be useful for incorporating CdSe nanoparticles into a wide variety of polymer matrices. |
| doi_str_mv | 10.1021/ja012576+ |
| format | Article |
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Firat</creatorcontrib><creatorcontrib>Coughlin, E. Bryan</creatorcontrib><creatorcontrib>Emrick, Todd</creatorcontrib><title>Preparation of Cadmium Selenide−Polyolefin Composites from Functional Phosphine Oxides and Ruthenium-Based Metathesis</title><title>Journal of the American Chemical Society</title><addtitle>J. Am. Chem. Soc</addtitle><description>Cadmium selenide nanoparticles, prepared by known methods, were stabilized with functional phosphine oxide 1, then used to support the polymerization of cyclic olefins radially outward from the surface by ruthenium-catalyzed ring-opening metathesis polymerization (ROMP). The conversion of compound 1 into the new metathesis catalyst 3 by carbene exchange and the subsequent polymerization of cyclic olefins were observed spectroscopically by 1H NMR to afford for example CdSe−polycyclooctene composite 6. Transmission electron micrographs on thin films of these composites showed good nanoparticle dispersion. This is in stark contrast to the substantial nanoparticle aggregation observed when similar polymerizations were performed in the presence of conventional TOPO-covered nanoparticles. The methods reported here to prepare composite product 6 are applicable to other cyclic olefins, and suggest that this chemistry will be useful for incorporating CdSe nanoparticles into a wide variety of polymer matrices.</description><subject>Alkenes - chemistry</subject><subject>Applied sciences</subject><subject>Cadmium Compounds - chemistry</subject><subject>Exact sciences and technology</subject><subject>Hydrocarbons, Cyclic - chemistry</subject><subject>Nanotechnology</subject><subject>Octanes - chemistry</subject><subject>Organic polymers</subject><subject>Organophosphorus Compounds - chemistry</subject><subject>Physicochemistry of polymers</subject><subject>Polymers with particular properties</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>Selenium Compounds - chemistry</subject><issn>0002-7863</issn><issn>1520-5126</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpl0MFu1DAQBmALgehSOPACyAdASChgO4mdPUJEAamlK7pI3KzZZKz1ksSpJxHtG3DmEXkSXHahB07W2N_8sn7GHkvxSgolX-9ASFUa_fIOW8hSiayUSt9lCyGEykyl8yP2gGiXxkJV8j47kkrINOgF-76KOEKEyYeBB8draHs_9_wCOxx8i79-_FyF7jp06PzA69CPgfyExF0MPT-Zh-ZmEzq-2gYat35Afn6V9ojD0PLP87RNMXOfvQXClp_hBOmGPD1k9xx0hI8O5zH7cvJuXX_ITs_ff6zfnGaQGz1lIFBtlk6VpRSQS9hUqgTjikaI1uVFBem-0KVEU2wKsYHCLWUOpq2EkRIl5Mfs-T53jOFyRpps76nBroMBw0zWSF1pkVcJvtjDJgaiiM6O0fcQr60U9qZl-7flRJ8cMudNj-0tPLSawLMDAGqgcxGGxtOty7XWxZ-gbO88TXj17x3iN6tNbkq7Xl3YZX22Fp--Fnad_NO9h4bsLswxFU___-83EnCghQ</recordid><startdate>20020522</startdate><enddate>20020522</enddate><creator>Skaff, Habib</creator><creator>Ilker, M. 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Bryan ; Emrick, Todd</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a376t-a0e2b9f25510a31ab825a7f4c00df348a5104651e74b40ba4f913a7d80711e1a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Alkenes - chemistry</topic><topic>Applied sciences</topic><topic>Cadmium Compounds - chemistry</topic><topic>Exact sciences and technology</topic><topic>Hydrocarbons, Cyclic - chemistry</topic><topic>Nanotechnology</topic><topic>Octanes - chemistry</topic><topic>Organic polymers</topic><topic>Organophosphorus Compounds - chemistry</topic><topic>Physicochemistry of polymers</topic><topic>Polymers with particular properties</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>Selenium Compounds - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Skaff, Habib</creatorcontrib><creatorcontrib>Ilker, M. Firat</creatorcontrib><creatorcontrib>Coughlin, E. Bryan</creatorcontrib><creatorcontrib>Emrick, Todd</creatorcontrib><collection>Istex</collection><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>Journal of the American Chemical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Skaff, Habib</au><au>Ilker, M. Firat</au><au>Coughlin, E. Bryan</au><au>Emrick, Todd</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation of Cadmium Selenide−Polyolefin Composites from Functional Phosphine Oxides and Ruthenium-Based Metathesis</atitle><jtitle>Journal of the American Chemical Society</jtitle><addtitle>J. Am. Chem. Soc</addtitle><date>2002-05-22</date><risdate>2002</risdate><volume>124</volume><issue>20</issue><spage>5729</spage><epage>5733</epage><pages>5729-5733</pages><issn>0002-7863</issn><eissn>1520-5126</eissn><coden>JACSAT</coden><abstract>Cadmium selenide nanoparticles, prepared by known methods, were stabilized with functional phosphine oxide 1, then used to support the polymerization of cyclic olefins radially outward from the surface by ruthenium-catalyzed ring-opening metathesis polymerization (ROMP). The conversion of compound 1 into the new metathesis catalyst 3 by carbene exchange and the subsequent polymerization of cyclic olefins were observed spectroscopically by 1H NMR to afford for example CdSe−polycyclooctene composite 6. Transmission electron micrographs on thin films of these composites showed good nanoparticle dispersion. This is in stark contrast to the substantial nanoparticle aggregation observed when similar polymerizations were performed in the presence of conventional TOPO-covered nanoparticles. The methods reported here to prepare composite product 6 are applicable to other cyclic olefins, and suggest that this chemistry will be useful for incorporating CdSe nanoparticles into a wide variety of polymer matrices.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>12010046</pmid><doi>10.1021/ja012576+</doi><tpages>5</tpages></addata></record> |
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| subjects | Alkenes - chemistry Applied sciences Cadmium Compounds - chemistry Exact sciences and technology Hydrocarbons, Cyclic - chemistry Nanotechnology Octanes - chemistry Organic polymers Organophosphorus Compounds - chemistry Physicochemistry of polymers Polymers with particular properties Preparation, kinetics, thermodynamics, mechanism and catalysts Selenium Compounds - chemistry |
| title | Preparation of Cadmium Selenide−Polyolefin Composites from Functional Phosphine Oxides and Ruthenium-Based Metathesis |
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