@article{SiegmannMoellerBeuermann2012,
  author    = {Siegmann, Rebekka and M{\"o}ller, Eleonore and Beuermann, Sabine},
  title     = {Propagation rate coefficients for homogeneous phase VDF-HFP copolymerization in supercritical CO2},
  series = {Macromolecular rapid communications},
  volume    = {33},
  journal   = {Macromolecular rapid communications},
  number    = {14},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1022-1336},
  doi       = {10.1002/marc.201200115},
  pages     = {1208 -- 1213},
  year      = {2012},
  abstract  = {For the first time, propagation rate coefficients, kp,COPO, for the copolymerizations of vinylidene fluoride and hexafluoropropene have been determined. The kinetic data was determined via pulsed-laser polymerization in conjunction with polymer analysis via size-exclusion chromatography, the PLP-SEC technique. The experiments were carried out in homogeneous phase with supercritical CO2 as solvent for temperatures ranging from 45 to 90 degrees C. Absolute polymer molecular weights were calculated on the basis of experimentally determined MarkHouwink constants. The Arrhenius parameters of kp,COPO vary significantly compared with ethene, which is explained by the high electronegativity of fluorine and less intra- and intermolecular interactions between the partially fluorinated macroradicals.},
  language  = {en}
}
@article{VukicevicVukovicStoyanovetal.2012,
  author    = {Vukicevic, Radovan and Vukovic, Ivana and Stoyanov, Hristiyan and Korwitz, Andreas and Pospiech, Doris and Kofod, Guggi and Loos, Katja and ten Brinke, Gerrit and Beuermann, Sabine},
  title     = {Poly(vinylidene fluoride)-functionalized single-walled carbon nanotubes for the preparation of composites with improved conductivity},
  series = {Polymer Chemistry},
  volume    = {3},
  journal   = {Polymer Chemistry},
  number    = {8},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {1759-9954},
  doi       = {10.1039/c2py20166f},
  pages     = {2261 -- 2265},
  year      = {2012},
  abstract  = {The surface of single-walled carbon nanotubes (SWCNTs) was functionalized with azide-terminated poly(vinylidene fluoride) (PVDF). Functionalization was confirmed by dispersibility, Raman spectroscopy, and thermogravimetric analyses. Raman spectra show disordering of the SWCNTs, thus, strongly suggesting that PVDF was covalently attached to SWCNTs. Functionalized SWCNTs were mixed with commercially available PVDF in a twin-screw extruder and thin films were obtained by melt-pressing. Films containing 0.5 and 1 wt\% PVDF-functionalized SWCNTs exhibited significantly improved electrical conductivity compared to PVDF films containing pristine SWCNTs.},
  language  = {en}
}
@article{BarthSiegmannBeuermannetal.2012,
  author    = {Barth, Johannes and Siegmann, Rebekka and Beuermann, Sabine and Russell, Gregory T. and Buback, Michael},
  title     = {Investigations into chain-length-dependent termination in bulk radical polymerization of 1H, 1H, 2H, 2H-Tridecafluorooctyl methacrylate},
  series = {Macromolecular chemistry and physics},
  volume    = {213},
  journal   = {Macromolecular chemistry and physics},
  number    = {1},
  publisher = {Wiley-Blackwell},
  address   = {Malden},
  issn      = {1022-1352},
  doi       = {10.1002/macp.201100479},
  pages     = {19 -- 28},
  year      = {2012},
  abstract  = {The SP-PLP-EPR technique is used to carry out a detailed investigation of the radical termination kinetics of 1H, 1H, 2H, 2H-tridecafluorooctyl methacrylate (TDFOMA) in bulk at relatively low conversion. Composite-model behavior for chain-length-dependent termination rate coefficients, kti,i, is observed. It is found that for TDFOMA, ic approximate to 60 independent of temperature, and as approximate to 0.65 and al approximate to 0.2 at 80 degrees C and above. However, at lower temperatures the situation is strikingly different, with the significantly higher average values of as = 0.89 +/- 0.15 and al = 0.32 +/- 0.10 being obtained at 50 degrees C and below. This makes TDFOMA the first monomer to be found that exhibits clearly different exponent values, as and al, at lower and higher temperature, and that has both a high as, like an acrylate, and a high ic, like a methacrylate.},
  language  = {en}
}
@article{VukicevicSchwadtkeSchmueckeretal.2012,
  author    = {Vukicevic, Radovan and Schwadtke, Ulrike and Schmuecker, Simon and Schaefer, Philipp and Kuckling, Dirk and Beuermann, Sabine},
  title     = {Alkyne-azide coupling of tailored poly(vinylidene fluoride) and polystyrene for the synthesis of block copolymers},
  series = {Polymer Chemistry},
  volume    = {3},
  journal   = {Polymer Chemistry},
  number    = {2},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {1759-9954},
  doi       = {10.1039/c1py00427a},
  pages     = {409 -- 414},
  year      = {2012},
  abstract  = {The synthesis of block copolymers consisting of poly(vinylidene fluoride) (PVDF) and polystyrene (PS) is reported. Firstly, a propargyl-functionalized alkoxyamine initiator (PgOTIPNO) was prepared and subsequently used for the preparation of a propargyl-terminated PS homopolymer of different chain lengths with low dispersities via nitroxide-mediated radical polymerization. A tailored PVDF homopolymer with iodine end groups originating from iodine transfer polymerization was transformed to PVDF with azide end group. Then, alkyne-terminated PS with different molecular weights and azide-terminated PVDF were joined together via copper-catalyzed alkyne-azide coupling. The block copolymers were characterized using H-1-NMR, F-19-NMR, IR, SEC, and DSC.},
  language  = {en}
}