Toward the preparation of a nanocomposite material through surface initiated controlled/“living” radical polymerization of styrene inside the channels of MCM-41 silica

Lenarda, Maurizio; Chessa, Gavino; Moretti, Elisa; Polizzi, Stefano; Storaro, Loretta; Talon, Aldo

doi:10.1007/s10853-006-0492-y

Cited by 43 publications

(27 citation statements)

References 41 publications

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“…[40] To this end, MCM-41 reacted consecutively with 3-aminopropyltriethoxysilane, terephthaloyl chloride, and 1-hydroxy-2-phenyl-2-TEMPO-ethane, for binding of the alkoxyamine by an ester linkage. Synthesis of PS brushes inside the channels of this material affected an increase of the surface area without destroying the original MCM-41 structural and morphological characteristics.…”

Section: Introductionmentioning

confidence: 99%

Polymer Brushes by Nitroxide‐Mediated Polymerization

Brinks

Studer

2009

Macromol. Rapid Commun.

120

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This review article describes the preparation of polymer brushes by nitroxide-mediated radical polymerization using either the 'grafting to' or the 'grafting from' approach. The use of TEMPO as a classical initiator is intensively described. More sophisticated nitroxides are also included in the discussion. Brush formation on flat surfaces such as wafers and also on particles is reported. Finally, some applications of polymer brushes are presented.

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Section: Introductionmentioning

confidence: 99%

Polymer Brushes by Nitroxide‐Mediated Polymerization

Brinks

Studer

2009

Macromol. Rapid Commun.

120

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“…[12] Extensive studies on SI-ATRP have been performed from various colloidal inorganic substrates, in particular silica, [9] but very few, in comparison, from OMS. [7,[13][14][15][16] However, in the articles devoted to the grafting from OMS, little attention was paid to both the macromolecular characteristics (whereas it should be the crucial point which justifies the recourse to CRP techniques) and the morphology of the OMS particles (usually ill-defined micrometric particles).…”

Section: Introductionmentioning

confidence: 99%

Structured Hybrid Nanoparticles via Surface‐Initiated ATRP of Methyl Methacrylate from Ordered Mesoporous Silica

Audouin

Blas

Pasetto

et al. 2008

Macromol. Rapid Commun.

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Structured hybrid nanoparticles were synthesized via surface‐initiated atom transfer radical polymerization of MMA from ordered mesoporous silica (OMS) nanoparticles with various morphologies. The design of the OMS particles was adjusted to target either spherical core‐shell or cylindrical morphologies with a mean diameter below 400 nm. The polymer growth via ATRP from the silica surface was well‐controlled as demonstrated by the macromolecular characteristics of the grafted chains. Original hybrid multilayered nanoparticles composed of either a dense silica core or hollow core; an inner OMS shell showing radial orientation of the mesopores and an outer PMMA shell with controlled thickness were successfully prepared.magnified image

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“…[320] Die innere Oberfläche des mesoporösen Silicats MCM-41 ließ sich erfolgreich mit einem Alkoxyamin funktionalisieren, wozu MCM-41 zunächst mit 3-Aminopropyltriethoxysilan, dann mit Terephthaloylchlorid und schließlich mit 1-Hydroxy-2-phenyl-2-TEMPO-ethan umgesetzt wurde. [321] Dieser Reaktionsfolge führt zu einer kovalenten Bindungsknüpfung über eine Estereinheit. Ganz analog ließen sich Alkoxyamineinheiten zwischen die einzelnen Schichten in LaponitMineralien einlagern.…”

Section: Nitroxide In Der Syntheseunclassified

Nitroxide: Anwendungen in der Synthese und in der Polymerchemie

2011

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Nitroxide werden in der Synthese und in der Polymerchemie verwendet. In diesem Aufsatz werden zunächst Methoden zur Herstellung von Nitroxiden und deren physikalische Eigenschaften besprochen. Der folgende Abschnitt beschreibt die Verwendung von Nitroxiden als stöchiometrische und katalytische Oxidationsmittel in der organischen Synthese. Die Oxidation von Alkoholen und Carbanionen spielt dabei ebenso eine wichtige Rolle wie oxidative C‐C‐Bindungsknüpfungen. Anschließend widmet sich ein Abschnitt der Rolle von Nitroxiden als Abfangreagentien für C‐zentrierte Radikale in der Radikalchemie. Nitroxide, die sich von Alkoxyaminen ableiten, fungieren als nützliche Ausgangsmaterialien für C‐zentrierte Radikale, deren Einsatz in der Synthese und in der Polymerchemie beschrieben wird. Der letzte Abschnitt stellt die Grundlagen der Nitroxid‐vermittelten Polymerisation (NMP) vor und zeigt neuere Entwicklungen beim Design komplexer Polymerarchitekturen auf.

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Toward the preparation of a nanocomposite material through surface initiated controlled/“living” radical polymerization of styrene inside the channels of MCM-41 silica

Cited by 43 publications

References 41 publications

Polymer Brushes by Nitroxide‐Mediated Polymerization

Polymer Brushes by Nitroxide‐Mediated Polymerization

Structured Hybrid Nanoparticles via Surface‐Initiated ATRP of Methyl Methacrylate from Ordered Mesoporous Silica

Nitroxide: Anwendungen in der Synthese und in der Polymerchemie

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