@article{JelicicGarciaBeuermann2009,
  author    = {Jelicic, Aleksandra and Garcia, Nuria and Beuermann, Sabine},
  title     = {Influence of ionic liquid structure on the propagation kinetics of methyl methacrylate},
  issn      = {0024-9297},
  doi       = {10.1021/ma900774e},
  year      = {2009},
  language  = {en}
}
@article{SchmidtBehlLendleinetal.2014,
  author    = {Schmidt, Christian and Behl, Marc and Lendlein, Andreas and Beuermann, Sabine},
  title     = {Synthesis of high molecular weight polyglycolide in supercritical carbon dioxide},
  series = {RSC Advances},
  volume    = {4},
  journal   = {RSC Advances},
  number    = {66},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {2046-2069},
  doi       = {10.1039/c4ra06815g},
  pages     = {35099 -- 35105},
  year      = {2014},
  abstract  = {Polyglycolide (PGA) is a biodegradable polymer with multiple applications in the medical sector. Here the synthesis of high molecular weight polyglycolide by ring-opening polymerization of diglycolide is reported. For the first time stabilizer free supercritical carbon dioxide (scCO(2)) was used as a reaction medium. scCO(2) allowed for a reduction in reaction temperature compared to conventional processes. Together with the lowering of monomer concentration and consequently reduced heat generation compared to bulk reactions thermal decomposition of the product occurring already during polymerization is strongly reduced. The reaction temperatures and pressures were varied between 120 and 150 degrees C and 145 to 1400 bar. Tin(II) ethyl hexanoate and 1-dodecanol were used as catalyst and initiator, respectively. The highest number average molecular weight of 31 200 g mol(-1) was obtained in 5 hours from polymerization at 120 degrees C and 530 bar. In all cases the products were obtained as a dry white powder. Remarkably, independent of molecular weight the melting temperatures were always at (219 +/- 2)degrees C.},
  language  = {en}
}
@article{SiegmannBeuermann2010,
  author    = {Siegmann, Rebekka and Beuermann, Sabine},
  title     = {Individual rate coefficients for 1H,1H,2H,2H-tridecafluorooctyl methacrylate radical polymerizations},
  issn      = {0024-9297},
  doi       = {10.1021/Ma902653b},
  year      = {2010},
  abstract  = {Kinetic data for radical polymerizations of 1H,1H,2H,2H-tridecafluorooctyl methacrylate (TDFOMA) in bulk is reported. Pulsed laser initiated polymerizations yield propagation rate coefficients, k(p), which are by a factor of 1.9 higher than methyl methacrylate k(p). The activation energy of TDFOMA k(p) is not significantly different from that of alkyl methacrylates. Chain-length averaged termination rate coefficients were estimated from chemically initiated polymerizations with in-line FT-NIR spectroscopic monitoring of monomer conversion. Up to 30\% of monomer conversion TDFOMA termination rate coefficients are only slightly below MMA low conversion values. The result is suggested to be due to less interactions between the macroradicals compared to nonfluorinated systems.},
  language  = {en}
}
@article{VukicevicHierzenbergerHildetal.2010,
  author    = {Vukicevic, Radovan and Hierzenberger, Peter and Hild, Sabine and Beuermann, Sabine},
  title     = {Functionalization of carbon black nanoparticles with poly(vinylidene fluoride)},
  issn      = {0887-624X},
  doi       = {10.1002/Pola.24277},
  year      = {2010},
  abstract  = {The surface of carbon black (CB) nanoparticles was functionalized with poly(vinylidene fluoride) (PVDF) either by trapping of macroradicals or by cycloaddition. PVDF with two iodine end groups (I-PVDF-I) obtained from iodine transfer polymerization in supercritical CO2 was heated in the presence of CB and the C-I bond was cleaved resulting in a reaction between the macroradical and the CB surface. To allow for cycloaddition of PVDF to the CB surface for a number of polymers, the iodine end groups were replaced by azide end groups. In addition, microwave irradiation was applied to the functionalization. The influence of temperature, time, polymer concentration, and polymer molar mass on the functionalization reaction was examined.},
  language  = {en}
}
@article{JelicicGarciaLoehmannsroebenetal.2009,
  author    = {Jelicic, Aleksandra and Garcia, Nuria and L{\"o}hmannsr{\"o}ben, Hans-Gerd and Beuermann, Sabine},
  title     = {Prediction of the ionic liquid influence on propagation rate coefficients in methyl methacrylate radical polymerizations based on Kamlet-Taft solvatochromic parameters},
  issn      = {0024-9297},
  doi       = {10.1021/ma9017907},
  year      = {2009},
  language  = {en}
}
@book{Beuermann2007,
  author    = {Beuermann, Sabine},
  title     = {Polymerisation im Kohlendioxid : Antrittsvorlesung 2007-01-25},
  publisher = {Univ.-Bibl.},
  address   = {Potsdam},
  year      = {2007},
  abstract  = {In ihrer Vorlesung zeigt Sabine Beuermann, unter welchen Bedingungen Kohlendioxid als Reaktionsmedium f{\"u}r die Herstellung von polymeren Materialien genutzt werden kann. Fluides Kohlendioxid ist ein attraktives Reaktionsmedium, da es ungiftig und nicht brennbar ist. Zudem leistet es einen wichtigen Beitrag zur Entwicklung nachhaltiger chemischer Prozesse, da durch den Einsatz von Kohlendioxid die Verwendung von organischen L{\"o}sungsmitteln vermieden werden kann.},
  language  = {de}
}
@article{BreiningerImranulhaqTuerketal.2009,
  author    = {Breininger, Eugenia and Imran-ul-haq, Muhammad and Tuerk, Michael and Beuermann, Sabine},
  title     = {Effect of polymer properties on poly(vinylidene fluoride) particles produced by rapid expansion of CO2 + polymer mixtures},
  issn      = {0896-8446},
  doi       = {10.1016/j.supflu.2008.09.016},
  year      = {2009},
  abstract  = {The generation of nanoscale primary poly(vinylidene fluoride) (PVDF) particles by rapid expansion of supercritical solutions (RESS) is reported. The experimental results show that RESS enables the formation of PVDF particles with median particle diameters ranging from 56 to 226 nm and that the size of PVDF particles can be influenced by polymer properties. The particle size can be decreased either by increasing molar mass, in case of identical polymer end groups, or by increasing the degree of crystallinity, in case of similar molar mass and different end groups.},
  language  = {en}
}
@article{Beuermann2009,
  author    = {Beuermann, Sabine},
  title     = {Solvent influence on propagation kinetics in radical polymerizations studied by pulsed laser initiated polymerizations},
  issn      = {1022-1336},
  doi       = {10.1002/marc.200900131},
  year      = {2009},
  abstract  = {The influence of the reaction medium (organic solvents, water, ionic liquids, supercritical CO2) on the propagation rate in radical polymerizations has very different causes, e.g., hindered rotational modes, hydrogen bonding or electron pair donor/acceptor interactions. Depending on the origin of the solvent influence propagation rate coefficients, k(P), may be enhanced by up to an order of magnitude associated with changes in the pre-exponential or the activation energy of k(P). In contrast, non-specific interactions, size and steric effects lead to rather small changes in the vicinity of the radical chain end and are reflected by modest variations in k(P).},
  language  = {en}
}
@article{Beuermann2009,
  author    = {Beuermann, Sabine},
  title     = {Solvent influence on propagation kinetics in radical polymerizations studied by pulsed laser initiated polymerizations},
  issn      = {1022-1336},
  year      = {2009},
  abstract  = {The influence of the reaction medium (organic solvents, water, ionic liquids, supercritical CO2) on the propagation rate in radical polymerizations has very different causes, e.g., hindered rotational modes, hydrogen bonding, or electron pair donor / acceptor interactions. Depending on the origin of the solvent influence propagation rate coefficients, kp, may be enhanced by up to an order of magnitude associated with changes in the pre-exponential or the activation energy of kp. Contrary, non-specific interactions, size and steric effects lead to rather small changes in the vicinity of the radical chain end and are reflected by modest variations in kp.},
  language  = {en}
}
@article{JelicicYasinBeuermann2011,
  author    = {Jelicic, Aleksandra and Yasin, Muttaqin and Beuermann, Sabine},
  title     = {Toward the description and prediction of solvent induced variations in Methacrylate Propagation Rate Coefficients on the basis of Solvatochromic Parameters},
  series = {Macromolecular reaction engineering},
  volume    = {5},
  journal   = {Macromolecular reaction engineering},
  number    = {5-6},
  publisher = {Wiley-Blackwell},
  address   = {Malden},
  issn      = {1862-832X},
  doi       = {10.1002/mren.201000058},
  pages     = {232 -- 242},
  year      = {2011},
  abstract  = {Benzyl methacrylate (BzMA) propagation rate coefficients, k(p), were determined in ionic liquids and common organic solvents via pulsed-laser polymerizations with subsequent polymer analysis by size-exclusion chromatography (PLP-SEC). The aim of the work is to gain a deeper understanding of the solvent influence on k(p) and to develop a general correlation between solvent-induced variations in k(p) and solvent properties. Applying a linear solvation energy relationship (LSER), which correlates k(p) to solvent solvatochromic parameters, suggests that dipolarity/polarizability determines the solvent influence on k(p). To compare the solvent influence on BzMA k(p) with data for methyl methacrylate, hydroxypropyl methacrylate, and 2-ethoxyethyl methacrylate normalized k(p) data were treated by a single LSER, providing a universal treatment of the solvent influence on the propagation kinetics of the four monomers. Further, the predictive capabilities of this universal correlation were tested with additional monomers from the methacrylate family.},
  language  = {en}
}