Influence of Conducting Polymers Based on Carboxylated Polyaniline on In Vitro CaCO3 Crystallization

Lade...
Vorschaubild
Dateien
Datum
2008
Autor:innen
Neira-Carrillo, Andronico
Acevedo, Diego F.
Miras, Maria C.
Barbero, Cesar A.
Arias, Jose L.
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
DOI (zitierfähiger Link)
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Green
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Zusammenfassung

Conducting polymers are interesting materials of technological applications, while the use of polymers as additives controlling crystal nucleation and growth is a fast growing research field. In the present article, we make a first step in combining both topics and report the effect of conducting polymer derivatives, which are based on carboxylated polyanilines (c-PANIs), on in vitro CaCO3 crystallization by the Kitano and gas diffusion method. This is the first example of the mineralization control of CaCO3 by a rigid carboxylated polymer. Both the concentration of c-PANI and the presence of carboxylate groups have a strong influence on the CaCO3 crystallization behavior and crystal morphology. X-ray diffraction (XRD) analysis shows crystalline calcite particles confirmed by FTIR spectra. pH and Ca2+ measurements during CaCO3 crystallization utilizing the Kitano and a constant-pH approach show a defined nucleation period of CaCO3 particles. The measurements allow for the calculation of the supersaturation time development, and the kinetic data can be combined with time-dependent light microscopy. The presence of c-PANIs delays the time of nucleation indicative of calcite nucleation inhibition. Microscopy illustrates the morphologies of CaCO3 crystals at all crystallization stages, from homogeneous spherical amorphous CaCO3 (ACC) particles corresponding to the first steps of crystallization to transition stage calcite crystals also involving a dissolution−recrystallization process in a late stage of crystallization. The data show that it is not possible to conclude the crystallization mechanism even for a very simple additive controlled crystallization process without time-resolved microscopic data supplemented by the analysis of the species present in the solution. Finally, fluorescence analysis indicates that conducting polymer derivatives can be incorporated into precipitated calcite particles. This gives rise to CaCO3 particles with novel and interesting optical properties.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
540 Chemie
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690NEIRA-CARRILLO, Andronico, Diego F. ACEVEDO, Maria C. MIRAS, Cesar A. BARBERO, Denis GEBAUER, Helmut CÖLFEN, Jose L. ARIAS, 2008. Influence of Conducting Polymers Based on Carboxylated Polyaniline on In Vitro CaCO3 Crystallization. In: Langmuir. 2008, 24(21), pp. 12496-12507. ISSN 0743-7463. eISSN 1520-5827. Available under: doi: 10.1021/la802231s
BibTex
@article{NeiraCarrillo2008-11-04Influ-17419,
  year={2008},
  doi={10.1021/la802231s},
  title={Influence of Conducting Polymers Based on Carboxylated Polyaniline on In Vitro CaCO3 Crystallization},
  number={21},
  volume={24},
  issn={0743-7463},
  journal={Langmuir},
  pages={12496--12507},
  author={Neira-Carrillo, Andronico and Acevedo, Diego F. and Miras, Maria C. and Barbero, Cesar A. and Gebauer, Denis and Cölfen, Helmut and Arias, Jose L.}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/17419">
    <dc:contributor>Barbero, Cesar A.</dc:contributor>
    <dc:contributor>Arias, Jose L.</dc:contributor>
    <dcterms:title>Influence of Conducting Polymers Based on Carboxylated Polyaniline on In Vitro CaCO3 Crystallization</dcterms:title>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/17419/2/Neira-Carrillo_etal_Influence%20of%20Conducting.pdf"/>
    <dc:creator>Acevedo, Diego F.</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-12-15T09:29:39Z</dcterms:available>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:contributor>Neira-Carrillo, Andronico</dc:contributor>
    <dc:rights>terms-of-use</dc:rights>
    <dc:language>eng</dc:language>
    <dc:creator>Cölfen, Helmut</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/17419/2/Neira-Carrillo_etal_Influence%20of%20Conducting.pdf"/>
    <dc:contributor>Cölfen, Helmut</dc:contributor>
    <dcterms:abstract xml:lang="eng">Conducting polymers are interesting materials of technological applications, while the use of polymers as additives controlling crystal nucleation and growth is a fast growing research field. In the present article, we make a first step in combining both topics and report the effect of conducting polymer derivatives, which are based on carboxylated polyanilines (c-PANIs), on in vitro CaCO3 crystallization by the Kitano and gas diffusion method. This is the first example of the mineralization control of CaCO3 by a rigid carboxylated polymer. Both the concentration of c-PANI and the presence of carboxylate groups have a strong influence on the CaCO3 crystallization behavior and crystal morphology. X-ray diffraction (XRD) analysis shows crystalline calcite particles confirmed by FTIR spectra. pH and Ca2+ measurements during CaCO3 crystallization utilizing the Kitano and a constant-pH approach show a defined nucleation period of CaCO3 particles. The measurements allow for the calculation of the supersaturation time development, and the kinetic data can be combined with time-dependent light microscopy. The presence of c-PANIs delays the time of nucleation indicative of calcite nucleation inhibition. Microscopy illustrates the morphologies of CaCO3 crystals at all crystallization stages, from homogeneous spherical amorphous CaCO3 (ACC) particles corresponding to the first steps of crystallization to transition stage calcite crystals also involving a dissolution−recrystallization process in a late stage of crystallization. The data show that it is not possible to conclude the crystallization mechanism even for a very simple additive controlled crystallization process without time-resolved microscopic data supplemented by the analysis of the species present in the solution. Finally, fluorescence analysis indicates that conducting polymer derivatives can be incorporated into precipitated calcite particles. This gives rise to CaCO3 particles with novel and interesting optical properties.</dcterms:abstract>
    <dcterms:issued>2008-11-04</dcterms:issued>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/17419"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Gebauer, Denis</dc:contributor>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:creator>Miras, Maria C.</dc:creator>
    <dc:contributor>Miras, Maria C.</dc:contributor>
    <dc:creator>Arias, Jose L.</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-12-15T09:29:39Z</dc:date>
    <dc:creator>Neira-Carrillo, Andronico</dc:creator>
    <dc:creator>Gebauer, Denis</dc:creator>
    <dc:creator>Barbero, Cesar A.</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Acevedo, Diego F.</dc:contributor>
    <dcterms:bibliographicCitation>Publ. in: Langmuir ; 24 (2008), 21. - S. 12496-12507</dcterms:bibliographicCitation>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Nein
Begutachtet
Diese Publikation teilen