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AuthorCrespy, Danieldc.contributor.author
Date of accession2016-03-14T13:39:40Zdc.date.accessioned
Available in OPARU since2016-03-14T13:39:40Zdc.date.available
Year of creation2006dc.date.created
AbstractWe describe in this document new advances in miniemulsion polymerizations. We investigated different po-lymerizations in miniemulsion, namely radical, anionic,and condensation polymerizations, in order to obtain different latex functionalities. First, hybrid polymer/ metal latexes were synthesized in direct miniemulsion. Hydrophobic platinum comple-xes were encapsulated in polystyrene particles matrix. These particles were deposited in an ordered mono-layer on silicon substrates due to their monodispersity. Secondly, we synthesized polyamide latexes via different techniques. Anionic polymerization was performed in inverse miniemulsion to give polyamide-6 latexes. The polyamide had a relatively high molecular weight, which was around 36 000 g.mol-1) and had less structural irregularities than the polymer prepared in bulk. Polyamide-6 dispersions in water were prepared under sonication upon addition of polyamide-6 dissolved in a water miscible solvent, to an aqueous solution containing a stabilizer. This novel process combines some features of the solvent displacement process and the miniemulsion technique. Only a small operating win-dow was found to be suitable in order to get stable submicrons particles. Polyamide-6 nanocapsules were prepared by another miniemulsion/ solvent displacement technique. Finally we investigated the synthesis of polymer latexes by polycondensation in miniemulsion. Hollow poly-meric capsules containing a hydrophilic liquid core were obtained in a simple one-pot miniemulsion process without the use of a sacrificial core. The polyurea, polythiourea or polyurethane shells are made by polycon-densation at the interface of the droplets. Capsules loaded with silver nanoparticles were synthesized upon reduction of silver nitrate encapsulated in polyurea shell.dc.description.abstract
Languageendc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseStandard (Fassung vom 03.05.2003)dc.rights
Link to license texthttps://oparu.uni-ulm.de/xmlui/license_v1dc.rights.uri
KeywordCapsulesdc.subject
KeywordHybrid particlesdc.subject
KeywordInterfacial polycondensationdc.subject
KeywordPolyamid 6dc.subject
KeywordPolymer chemistrydc.subject
KeywordPolymerizable surfactantdc.subject
KeywordSolvent displacementdc.subject
KeywordSurfmerdc.subject
Dewey Decimal GroupDDC 540 / Chemistry & allied sciencesdc.subject.ddc
MeSHNanoparticlesdc.subject.mesh
TitleTuning polymeric latex functionality via the miniemulsion techniquedc.title
Resource typeDissertationdc.type
DOIhttp://dx.doi.org/10.18725/OPARU-492dc.identifier.doi
PPN165157832Xdc.identifier.ppn
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-vts-58406dc.identifier.urn
GNDKolloiddc.subject.gnd
GNDMiniemulsiondc.subject.gnd
FacultyFakultät für Naturwissenschaftenuulm.affiliationGeneral
Date of activation2007-01-31T07:53:12Zuulm.freischaltungVTS
Peer reviewneinuulm.peerReview
Shelfmark print versionZ: J-H 11.400 ; W: W-H 9.508uulm.shelfmark
DCMI TypeTextuulm.typeDCMI
VTS ID5840uulm.vtsID
CategoryPublikationenuulm.category
Bibliographyuulmuulm.bibliographie


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