Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers
•Aqueous dispersions of Cel-g-PS contain clusters of collapsed macromolecules.•The size of the clusters can be tuned by changing the copolymer concentration.•The aggregates are stabilized by SDS entrapped in the collapsed macromolecules. Aqueous dispersions of hydrophobic high-molar-mass cellulose-g...
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| Veröffentlicht in: | Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2014-08, Vol.456, p.10-17 |
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| container_title | Colloids and surfaces. A, Physicochemical and engineering aspects |
| container_volume | 456 |
| creator | Hajduová, Jana Procházka, Karel Raus, Vladimír Šlouf, Miroslav Krzyžánek, Vladislav Garamus, Vasil M. Štěpánek, Miroslav |
| description | •Aqueous dispersions of Cel-g-PS contain clusters of collapsed macromolecules.•The size of the clusters can be tuned by changing the copolymer concentration.•The aggregates are stabilized by SDS entrapped in the collapsed macromolecules.
Aqueous dispersions of hydrophobic high-molar-mass cellulose-graft-polystyrene (Cel-g-PS) copolymers were prepared by nanoprecipitation from 1,4-dioxane solutions using sodium dodecyl sulfate as a stabilizer. The size and structure of formed Cel-g-PS nanoparticles were studied by scattering techniques (static and dynamic light scattering, SAXS) and transmission electron microscopy. The scattering and microscopy data show that nanoprecipitation of Cel-g-PS leads to the formation of polydisperse aggregates of collapsed Cel-g-PS macromolecules containing entrapped SDS micelles in the kinetically frozen state. The final size of the aggregates can be tuned by changing the copolymer concentration, cP, in the dioxane solution. The average hydrodynamic radius of the aggregates, RH, scales as [(RH/RH,0)2.5–1]∼cP, where RH,0 is the RH value extrapolated to the zero copolymer concentration. |
| doi_str_mv | 10.1016/j.colsurfa.2014.04.059 |
| format | Article |
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Aqueous dispersions of hydrophobic high-molar-mass cellulose-graft-polystyrene (Cel-g-PS) copolymers were prepared by nanoprecipitation from 1,4-dioxane solutions using sodium dodecyl sulfate as a stabilizer. The size and structure of formed Cel-g-PS nanoparticles were studied by scattering techniques (static and dynamic light scattering, SAXS) and transmission electron microscopy. The scattering and microscopy data show that nanoprecipitation of Cel-g-PS leads to the formation of polydisperse aggregates of collapsed Cel-g-PS macromolecules containing entrapped SDS micelles in the kinetically frozen state. The final size of the aggregates can be tuned by changing the copolymer concentration, cP, in the dioxane solution. The average hydrodynamic radius of the aggregates, RH, scales as [(RH/RH,0)2.5–1]∼cP, where RH,0 is the RH value extrapolated to the zero copolymer concentration.</description><identifier>ISSN: 0927-7757</identifier><identifier>EISSN: 1873-4359</identifier><identifier>DOI: 10.1016/j.colsurfa.2014.04.059</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Aggregates ; Copolymers ; Dispersions ; Graft copolymer ; Light scattering ; Macromolecules ; Nanoparticles ; Nanoprecipitation ; Nanostructure ; SAXS ; Scattering ; TEM</subject><ispartof>Colloids and surfaces. A, Physicochemical and engineering aspects, 2014-08, Vol.456, p.10-17</ispartof><rights>2014 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c393t-279afe1aba6071e0937e56c940db51da572f68168135d43627c83f230fc70ccf3</citedby><cites>FETCH-LOGICAL-c393t-279afe1aba6071e0937e56c940db51da572f68168135d43627c83f230fc70ccf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.colsurfa.2014.04.059$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids></links><search><creatorcontrib>Hajduová, Jana</creatorcontrib><creatorcontrib>Procházka, Karel</creatorcontrib><creatorcontrib>Raus, Vladimír</creatorcontrib><creatorcontrib>Šlouf, Miroslav</creatorcontrib><creatorcontrib>Krzyžánek, Vladislav</creatorcontrib><creatorcontrib>Garamus, Vasil M.</creatorcontrib><creatorcontrib>Štěpánek, Miroslav</creatorcontrib><title>Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers</title><title>Colloids and surfaces. A, Physicochemical and engineering aspects</title><description>•Aqueous dispersions of Cel-g-PS contain clusters of collapsed macromolecules.•The size of the clusters can be tuned by changing the copolymer concentration.•The aggregates are stabilized by SDS entrapped in the collapsed macromolecules.
Aqueous dispersions of hydrophobic high-molar-mass cellulose-graft-polystyrene (Cel-g-PS) copolymers were prepared by nanoprecipitation from 1,4-dioxane solutions using sodium dodecyl sulfate as a stabilizer. The size and structure of formed Cel-g-PS nanoparticles were studied by scattering techniques (static and dynamic light scattering, SAXS) and transmission electron microscopy. The scattering and microscopy data show that nanoprecipitation of Cel-g-PS leads to the formation of polydisperse aggregates of collapsed Cel-g-PS macromolecules containing entrapped SDS micelles in the kinetically frozen state. The final size of the aggregates can be tuned by changing the copolymer concentration, cP, in the dioxane solution. The average hydrodynamic radius of the aggregates, RH, scales as [(RH/RH,0)2.5–1]∼cP, where RH,0 is the RH value extrapolated to the zero copolymer concentration.</description><subject>Aggregates</subject><subject>Copolymers</subject><subject>Dispersions</subject><subject>Graft copolymer</subject><subject>Light scattering</subject><subject>Macromolecules</subject><subject>Nanoparticles</subject><subject>Nanoprecipitation</subject><subject>Nanostructure</subject><subject>SAXS</subject><subject>Scattering</subject><subject>TEM</subject><issn>0927-7757</issn><issn>1873-4359</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkEFv1DAQhS0EUpfSv1D5yCWLHcfx-gaqoCBV4gCcLe9k3PUqiYPHQVpu_PN62XJGetJc3nxv5jF2K8VWCtm_O24hjbTm4LetkN1WVGn7gm3kzqimU9q-ZBthW9MYo80Ve010FEJ02tgN-_Ot5BXKmpGnwJc0nibMEfjs57T4XCKMSDzO_G8AFD-XhorfxzH-xoH7nyumlfgQacFMMc105hzi46GZ0uhzM3kifjgNOS2HtK_kx-xD4ZCes-gNexX8SHjzPK_Zj08fv999bh6-3n-5-_DQgLKqNK2xPqD0e98LI1FYZVD3YDsx7LUcvDZt6HeySumhU31rYKdCq0QAIwCCumZvL9wlp3o1FTdFAhxHP59fcFJr2xtTwdXaX6yQE1HG4JYcJ59PTgp37twd3b_O3blzJ6q0rYvvL4tYH_kVMTuCiDPgEDNCcUOK_0M8AagDkog</recordid><startdate>20140820</startdate><enddate>20140820</enddate><creator>Hajduová, Jana</creator><creator>Procházka, Karel</creator><creator>Raus, Vladimír</creator><creator>Šlouf, Miroslav</creator><creator>Krzyžánek, Vladislav</creator><creator>Garamus, Vasil M.</creator><creator>Štěpánek, Miroslav</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20140820</creationdate><title>Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers</title><author>Hajduová, Jana ; Procházka, Karel ; Raus, Vladimír ; Šlouf, Miroslav ; Krzyžánek, Vladislav ; Garamus, Vasil M. ; Štěpánek, Miroslav</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-279afe1aba6071e0937e56c940db51da572f68168135d43627c83f230fc70ccf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Aggregates</topic><topic>Copolymers</topic><topic>Dispersions</topic><topic>Graft copolymer</topic><topic>Light scattering</topic><topic>Macromolecules</topic><topic>Nanoparticles</topic><topic>Nanoprecipitation</topic><topic>Nanostructure</topic><topic>SAXS</topic><topic>Scattering</topic><topic>TEM</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hajduová, Jana</creatorcontrib><creatorcontrib>Procházka, Karel</creatorcontrib><creatorcontrib>Raus, Vladimír</creatorcontrib><creatorcontrib>Šlouf, Miroslav</creatorcontrib><creatorcontrib>Krzyžánek, Vladislav</creatorcontrib><creatorcontrib>Garamus, Vasil M.</creatorcontrib><creatorcontrib>Štěpánek, Miroslav</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Colloids and surfaces. A, Physicochemical and engineering aspects</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hajduová, Jana</au><au>Procházka, Karel</au><au>Raus, Vladimír</au><au>Šlouf, Miroslav</au><au>Krzyžánek, Vladislav</au><au>Garamus, Vasil M.</au><au>Štěpánek, Miroslav</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers</atitle><jtitle>Colloids and surfaces. A, Physicochemical and engineering aspects</jtitle><date>2014-08-20</date><risdate>2014</risdate><volume>456</volume><spage>10</spage><epage>17</epage><pages>10-17</pages><issn>0927-7757</issn><eissn>1873-4359</eissn><abstract>•Aqueous dispersions of Cel-g-PS contain clusters of collapsed macromolecules.•The size of the clusters can be tuned by changing the copolymer concentration.•The aggregates are stabilized by SDS entrapped in the collapsed macromolecules.
Aqueous dispersions of hydrophobic high-molar-mass cellulose-graft-polystyrene (Cel-g-PS) copolymers were prepared by nanoprecipitation from 1,4-dioxane solutions using sodium dodecyl sulfate as a stabilizer. The size and structure of formed Cel-g-PS nanoparticles were studied by scattering techniques (static and dynamic light scattering, SAXS) and transmission electron microscopy. The scattering and microscopy data show that nanoprecipitation of Cel-g-PS leads to the formation of polydisperse aggregates of collapsed Cel-g-PS macromolecules containing entrapped SDS micelles in the kinetically frozen state. The final size of the aggregates can be tuned by changing the copolymer concentration, cP, in the dioxane solution. The average hydrodynamic radius of the aggregates, RH, scales as [(RH/RH,0)2.5–1]∼cP, where RH,0 is the RH value extrapolated to the zero copolymer concentration.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.colsurfa.2014.04.059</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| issn | 0927-7757 1873-4359 |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Aggregates Copolymers Dispersions Graft copolymer Light scattering Macromolecules Nanoparticles Nanoprecipitation Nanostructure SAXS Scattering TEM |
| title | Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers |
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