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NHC-Metallosurfactants as Active Polymerization Catalysts

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autorschaft

  • Adrian Donner
  • Bastian Trepka
  • Sebastian Theiss
  • Fabian Immler
  • Sebastian Polarz

Externe Organisationen

  • Universität Konstanz

Details

OriginalspracheEnglisch
Seiten (von - bis)16514-16520
Seitenumfang7
FachzeitschriftLANGMUIR
Jahrgang35
Ausgabenummer50
Frühes Online-Datum7 Nov. 2019
PublikationsstatusVeröffentlicht - 17 Dez. 2019
Extern publiziertJa

Abstract

Next-generation surfactants provide extended functionality apart from their amphiphilic properties. We present two novel metallosurfactants characterized by an N-heterocyclic carbene (NHC) head bearing Cu(I) and Fe(II). An innovative approach for their application in emulsion polymerizations under atom transfer radical polymerization (ATRP) conditions was developed. Thereby the complexes fulfilled the role of emulsifiers, active catalysts, and stabilization agents at once. Polymerization of methyl methacrylate (MMA) yielded stable poly(methyl methacrylate) (PMMA) colloids in water with the catalyst located at the surface of the colloids. The termination of PMMA with a bromine moiety enabled the subsequent copolymerization with styrene via macroinitiation and PMMA-polystyrene (PS) core-shell particles were obtained. Gel permeation chromatography (GPC) and selective gradient NMR experiments revealed a covalent linkage between the PMMA core and the PS shell.

ASJC Scopus Sachgebiete

Zitieren

NHC-Metallosurfactants as Active Polymerization Catalysts. / Donner, Adrian; Trepka, Bastian; Theiss, Sebastian et al.
in: LANGMUIR, Jahrgang 35, Nr. 50, 17.12.2019, S. 16514-16520.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Donner, A, Trepka, B, Theiss, S, Immler, F, Traber, J & Polarz, S 2019, 'NHC-Metallosurfactants as Active Polymerization Catalysts', LANGMUIR, Jg. 35, Nr. 50, S. 16514-16520. https://doi.org/10.1021/acs.langmuir.9b02152
Donner, A., Trepka, B., Theiss, S., Immler, F., Traber, J., & Polarz, S. (2019). NHC-Metallosurfactants as Active Polymerization Catalysts. LANGMUIR, 35(50), 16514-16520. https://doi.org/10.1021/acs.langmuir.9b02152
Donner A, Trepka B, Theiss S, Immler F, Traber J, Polarz S. NHC-Metallosurfactants as Active Polymerization Catalysts. LANGMUIR. 2019 Dez 17;35(50):16514-16520. Epub 2019 Nov 7. doi: 10.1021/acs.langmuir.9b02152
Donner, Adrian ; Trepka, Bastian ; Theiss, Sebastian et al. / NHC-Metallosurfactants as Active Polymerization Catalysts. in: LANGMUIR. 2019 ; Jahrgang 35, Nr. 50. S. 16514-16520.
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abstract = "Next-generation surfactants provide extended functionality apart from their amphiphilic properties. We present two novel metallosurfactants characterized by an N-heterocyclic carbene (NHC) head bearing Cu(I) and Fe(II). An innovative approach for their application in emulsion polymerizations under atom transfer radical polymerization (ATRP) conditions was developed. Thereby the complexes fulfilled the role of emulsifiers, active catalysts, and stabilization agents at once. Polymerization of methyl methacrylate (MMA) yielded stable poly(methyl methacrylate) (PMMA) colloids in water with the catalyst located at the surface of the colloids. The termination of PMMA with a bromine moiety enabled the subsequent copolymerization with styrene via macroinitiation and PMMA-polystyrene (PS) core-shell particles were obtained. Gel permeation chromatography (GPC) and selective gradient NMR experiments revealed a covalent linkage between the PMMA core and the PS shell.",
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N1 - Funding information: The manuscript was written through the contributions of all authors. All authors have given approval to the final version of the manuscript. The current research was funded by an ERC consolidator grant (I-SURF; project 614606). The authors declare no competing financial interest. The authors thank the European Research Council (ERC) for funding within the project “I-SURF” and the Deutsche Forschungsgemeinschaft (DFG) for funding within the framework of the Collaborative Research Center SFB-1214 - project Z1 (Particle Analysis Center). Furthermore, the authors thank Manuel Schnitte and Florian Wimmer for GPC and Anke Friemel for NMR measurements.

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