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Preparation and characterization of core-shell nanoparticles containing poly(chlorotrifluoroethylene-co-ethylvinylether) as core
Core shell latex particles with a glassy core and a low Tg polymeric shell are usually preferred. More so, the glassy core happens to be a fluoropolymer with a shell polymer that helps in processability. We describe here the preparation and characterization of core shell nanoparticles consisting of...
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| Published in: | Journal of applied polymer science 2011-11, Vol.122 (3), p.1807-1814 |
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| Main Authors: | , , , , , |
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| container_issue | 3 |
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| container_title | Journal of applied polymer science |
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| creator | Reddy, Ch. Koti Raju, L. Yugandhar Srinivas, P. V. S. S. Rao, P. Shanthan Shekharam, T. Shailaja, D. |
| description | Core shell latex particles with a glassy core and a low Tg polymeric shell are usually preferred. More so, the glassy core happens to be a fluoropolymer with a shell polymer that helps in processability. We describe here the preparation and characterization of core shell nanoparticles consisting of poly(chlorotrifluoroethylene‐co‐ethylvinylether) as core encapsulated in poly(styrene‐acrylate) copolymer shell using seeded emulsion polymerization method under kinetically controlled monomer starved conditions. Properties of the emulsion using surfactants (fluoro/conventional) and surfactant free conditions were investigated. Average size (100 nm), spherical shape and core–shell morphology of the latex particles was confirmed by dynamic light scattering and transmission electron microscopy. Absence of CF and CCl peaks in X‐ray photoelectron spectroscopy proves that cores are completely covered. Polymerization in the presence of fluorocarbon surfactant was found to give optimum features like narrow size distribution, good shell deposition and no traces of agglomeration. Films of core shell latex particles exhibited improved transparency and enhanced water contact angles thus making them suitable for applications in various fields including coatings. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011 |
| doi_str_mv | 10.1002/app.34262 |
| format | article |
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Average size (100 nm), spherical shape and core–shell morphology of the latex particles was confirmed by dynamic light scattering and transmission electron microscopy. Absence of CF and CCl peaks in X‐ray photoelectron spectroscopy proves that cores are completely covered. Polymerization in the presence of fluorocarbon surfactant was found to give optimum features like narrow size distribution, good shell deposition and no traces of agglomeration. Films of core shell latex particles exhibited improved transparency and enhanced water contact angles thus making them suitable for applications in various fields including coatings. © 2011 Wiley Periodicals, Inc. 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Koti</creatorcontrib><creatorcontrib>Raju, L. Yugandhar</creatorcontrib><creatorcontrib>Srinivas, P. V. S. S.</creatorcontrib><creatorcontrib>Rao, P. Shanthan</creatorcontrib><creatorcontrib>Shekharam, T.</creatorcontrib><creatorcontrib>Shailaja, D.</creatorcontrib><title>Preparation and characterization of core-shell nanoparticles containing poly(chlorotrifluoroethylene-co-ethylvinylether) as core</title><title>Journal of applied polymer science</title><addtitle>J. Appl. Polym. Sci</addtitle><description>Core shell latex particles with a glassy core and a low Tg polymeric shell are usually preferred. More so, the glassy core happens to be a fluoropolymer with a shell polymer that helps in processability. We describe here the preparation and characterization of core shell nanoparticles consisting of poly(chlorotrifluoroethylene‐co‐ethylvinylether) as core encapsulated in poly(styrene‐acrylate) copolymer shell using seeded emulsion polymerization method under kinetically controlled monomer starved conditions. Properties of the emulsion using surfactants (fluoro/conventional) and surfactant free conditions were investigated. Average size (100 nm), spherical shape and core–shell morphology of the latex particles was confirmed by dynamic light scattering and transmission electron microscopy. Absence of CF and CCl peaks in X‐ray photoelectron spectroscopy proves that cores are completely covered. Polymerization in the presence of fluorocarbon surfactant was found to give optimum features like narrow size distribution, good shell deposition and no traces of agglomeration. Films of core shell latex particles exhibited improved transparency and enhanced water contact angles thus making them suitable for applications in various fields including coatings. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011</description><subject>Applied sciences</subject><subject>chlorotrifluoroethylene</subject><subject>Contact angle</subject><subject>core-shell nanoparticles</subject><subject>Exact sciences and technology</subject><subject>Glassy</subject><subject>Latex</subject><subject>Materials science</subject><subject>Nanoparticles</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymerization</subject><subject>Polymers</subject><subject>Polymers with particular properties</subject><subject>Polystyrene resins</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>seeded emulsion polymerization</subject><subject>Shells</subject><subject>Surfactants</subject><subject>wettability</subject><issn>0021-8995</issn><issn>1097-4628</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp1kU9v1DAQxSMEEkvhwDeIhJDag1v_T3KsFmhBFaxQEUfL6x0TF9dObS_tcuKjYzalByROM575vSePXtO8JPiYYExP9DQdM04lfdQsCB46xCXtHzeLuiOoHwbxtHmW8xXGhAgsF82vVYJJJ11cDK0Om9aM9WUKJPdzHkbbmpgA5RG8b4MOsfLFGQ-5LkLRLrjwrZ2i3x2a0ccUS3LWb2sDZdx5CIBMRPv-hwt1UEZIR63Oe9_nzROrfYYX9_Wg-fLu7eXyHF18Onu_PL1Ahg09RVDLgC2wjQUJYsCs5z0XlPO1xh2mds0GIIQZvpacM86MkHjT2W5DgYAAdtAczr5TijdbyEVdu2zqSTpA3GZFMKW95EL2FX31D3oVtynU3ykiiOx7Srmo1NFMmRRzTmDVlNy1Trtqpf5koWoWap9FZV_fO-pstLdJB-Pyg6BeQXiHeeVOZu7Wedj931CdrlZ_ndGscLnA3YNCp-9KdqwT6uvHM_VGnNNL9vmDWrLfSaCpcQ</recordid><startdate>20111105</startdate><enddate>20111105</enddate><creator>Reddy, Ch. Koti</creator><creator>Raju, L. Yugandhar</creator><creator>Srinivas, P. V. S. S.</creator><creator>Rao, P. Shanthan</creator><creator>Shekharam, T.</creator><creator>Shailaja, D.</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>20111105</creationdate><title>Preparation and characterization of core-shell nanoparticles containing poly(chlorotrifluoroethylene-co-ethylvinylether) as core</title><author>Reddy, Ch. Koti ; Raju, L. Yugandhar ; Srinivas, P. V. S. S. ; Rao, P. 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Koti</creatorcontrib><creatorcontrib>Raju, L. Yugandhar</creatorcontrib><creatorcontrib>Srinivas, P. V. S. S.</creatorcontrib><creatorcontrib>Rao, P. Shanthan</creatorcontrib><creatorcontrib>Shekharam, T.</creatorcontrib><creatorcontrib>Shailaja, D.</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>Reddy, Ch. Koti</au><au>Raju, L. Yugandhar</au><au>Srinivas, P. V. S. S.</au><au>Rao, P. 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Sci</addtitle><date>2011-11-05</date><risdate>2011</risdate><volume>122</volume><issue>3</issue><spage>1807</spage><epage>1814</epage><pages>1807-1814</pages><issn>0021-8995</issn><issn>1097-4628</issn><eissn>1097-4628</eissn><coden>JAPNAB</coden><notes>Terminal Ballistics Research Laboratory, Chandigarh, India</notes><notes>ArticleID:APP34262</notes><notes>istex:8BE1C8644B4EF37169219FD8F3E482E106E932AB</notes><notes>ark:/67375/WNG-D5H2T3RJ-C</notes><notes>ObjectType-Article-2</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-1</notes><notes>content type line 23</notes><abstract>Core shell latex particles with a glassy core and a low Tg polymeric shell are usually preferred. More so, the glassy core happens to be a fluoropolymer with a shell polymer that helps in processability. We describe here the preparation and characterization of core shell nanoparticles consisting of poly(chlorotrifluoroethylene‐co‐ethylvinylether) as core encapsulated in poly(styrene‐acrylate) copolymer shell using seeded emulsion polymerization method under kinetically controlled monomer starved conditions. Properties of the emulsion using surfactants (fluoro/conventional) and surfactant free conditions were investigated. Average size (100 nm), spherical shape and core–shell morphology of the latex particles was confirmed by dynamic light scattering and transmission electron microscopy. Absence of CF and CCl peaks in X‐ray photoelectron spectroscopy proves that cores are completely covered. Polymerization in the presence of fluorocarbon surfactant was found to give optimum features like narrow size distribution, good shell deposition and no traces of agglomeration. Films of core shell latex particles exhibited improved transparency and enhanced water contact angles thus making them suitable for applications in various fields including coatings. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/app.34262</doi><tpages>8</tpages></addata></record> |
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| subjects | Applied sciences chlorotrifluoroethylene Contact angle core-shell nanoparticles Exact sciences and technology Glassy Latex Materials science Nanoparticles Organic polymers Physicochemistry of polymers Polymerization Polymers Polymers with particular properties Polystyrene resins Preparation, kinetics, thermodynamics, mechanism and catalysts seeded emulsion polymerization Shells Surfactants wettability |
| title | Preparation and characterization of core-shell nanoparticles containing poly(chlorotrifluoroethylene-co-ethylvinylether) as core |
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