Details
| Original language | English |
|---|---|
| Pages (from-to) | 16514-16520 |
| Number of pages | 7 |
| Journal | LANGMUIR |
| Volume | 35 |
| Issue number | 50 |
| Early online date | 7 Nov 2019 |
| Publication status | Published - 17 Dec 2019 |
| Externally published | Yes |
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 subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Chemistry(all)
- Spectroscopy
- Chemistry(all)
- Electrochemistry
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In: LANGMUIR, Vol. 35, No. 50, 17.12.2019, p. 16514-16520.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - NHC-Metallosurfactants as Active Polymerization Catalysts
AU - Donner, Adrian
AU - Trepka, Bastian
AU - Theiss, Sebastian
AU - Immler, Fabian
AU - Traber, Johanna
AU - Polarz, Sebastian
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.
PY - 2019/12/17
Y1 - 2019/12/17
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85075690888&partnerID=8YFLogxK
U2 - 10.1021/acs.langmuir.9b02152
DO - 10.1021/acs.langmuir.9b02152
M3 - Article
VL - 35
SP - 16514
EP - 16520
JO - LANGMUIR
JF - LANGMUIR
SN - 0743-7463
IS - 50
ER -