Search results

Search for "monodisperse" in Full Text gives 32 result(s) in Beilstein Journal of Organic Chemistry.

Miniemulsion polymerization as a versatile tool for the synthesis of functionalized polymers

  • Daniel Crespy and
  • Katharina Landfester

Beilstein J. Org. Chem. 2010, 6, 1132–1148, doi:10.3762/bjoc.6.130

Graphical Abstract
  • diacrylate to yield, after the transfer to water, stable microgels. Monodisperse latexes could be obtained with the poly(2-hydroxyethyl methacrylate) when water, methanol, ethanol, ethylene glycol, or water/ethanol mixtures were used as the dispersed phase in the presence of cobalt tetrafluoroborate [21
  • ]. This approach is particularly interesting to encapsulate large amounts of metal salts. Indeed, up to 22.6 wt % of the cobalt salt compared to the monomer content could be encapsulated. Monodisperse latexes of silver–polymer particles were also obtained upon reduction of silver nitrate in the monomer
  • monodisperse nanoparticles with a controlled density of functionalization of the surface. Thus, the influence of the surface functionality nature and density of the nanoparticles on their uptake by different cell lines could be investigated. 2-Aminoethyl methacrylate (0–20 wt %) or acrylic acid were
PDF
Album
Video
Full Research Paper
Published 01 Dec 2010

Synthesis and crystal structures of multifunctional tosylates as basis for star-shaped poly(2-ethyl-2-oxazoline)s

  • Richard Hoogenboom,
  • Martin W. M. Fijten,
  • Guido Kickelbick and
  • Ulrich S. Schubert

Beilstein J. Org. Chem. 2010, 6, 773–783, doi:10.3762/bjoc.6.96

Graphical Abstract
  • value results from diffusion of the organic compound in the column since it is almost monodisperse (see MALDI in Figure 8). The star-PEtOx could not be characterized with the RI-detector due to the combination of a positive signal of the polymer and a negative signal of the porphyrin. However, detection
PDF
Album
Supp Info
Full Research Paper
Published 09 Sep 2010

Synthesis, spectral characterization, electron microscopic study and thermogravimetric analysis of a phosphorus containing dendrimer with diphenylsilanediol as core unit

  • E. Dadapeer,
  • B. Hari Babu,
  • C. Suresh Reddy and
  • Naga Raju Charmarthi

Beilstein J. Org. Chem. 2010, 6, 726–731, doi:10.3762/bjoc.6.85

Graphical Abstract
  • of exploding firework. In contrast, the convergent approach involves the synthesis of dendrimeric fragments followed by their subsequent addition to the core. This method was initially described by Hawker and Frechet [6]. The synthesis of dendrimers offers the opportunity to generate monodisperse
PDF
Album
Supp Info
Full Research Paper
Published 11 Aug 2010

Poly(glycolide) multi-arm star polymers: Improved solubility via limited arm length

  • Florian K. Wolf,
  • Anna M. Fischer and
  • Holger Frey

Beilstein J. Org. Chem. 2010, 6, No. 67, doi:10.3762/bjoc.6.67

Graphical Abstract
  • range of 1.3–1.7 for the series of star polymers prepared, which is moderate. These values can be explained by the non-monodisperse multifunctional initiator (PDI: 1.9–2.0), although transesterification/cyclization reactions during the synthesis cannot be completely excluded. A detailed account of the
PDF
Album
Full Research Paper
Published 21 Jun 2010

RAFT polymers for protein recognition

  • Alan F. Tominey,
  • Julia Liese,
  • Sun Wei,
  • Klaus Kowski,
  • Thomas Schrader and
  • Arno Kraft

Beilstein J. Org. Chem. 2010, 6, No. 66, doi:10.3762/bjoc.6.66

Graphical Abstract
  • -transfer radical polymerization (ATRP) have become extremely useful tools for the controlled synthesis of a wide range of polymers and could solve both problems by formation of monodisperse functionalized polymer chains of equal length, without the need for final polymer-analogous deprotection. So far
PDF
Album
Supp Info
Full Research Paper
Published 17 Jun 2010

Polar tagging in the synthesis of monodisperse oligo(p-phenyleneethynylene)s and an update on the synthesis of oligoPPEs

  • Dhananjaya Sahoo,
  • Susanne Thiele,
  • Miriam Schulte,
  • Navid Ramezanian and
  • Adelheid Godt

Beilstein J. Org. Chem. 2010, 6, No. 57, doi:10.3762/bjoc.6.57

Graphical Abstract
  • Dhananjaya Sahoo Susanne Thiele Miriam Schulte Navid Ramezanian Adelheid Godt Bielefeld University, Faculty of Chemistry, Universitätsstr. 25, D-33615 Bielefeld, Germany 10.3762/bjoc.6.57 Abstract One important access to monodisperse (functionalized) oligoPPEs is based on the orthogonality of the
PDF
Album
Supp Info
Full Research Paper
Published 01 Jun 2010

Novel loop-like aromatic compounds: a further step on the road to nanobelts and nanotubes

  • Venkataramana Rajuri,
  • Dariush Ajami,
  • Gaston R. Schaller,
  • Christian Näther and
  • Rainer Herges

Beilstein J. Org. Chem. 2010, 6, No. 30, doi:10.3762/bjoc.6.30

Graphical Abstract
  • carbon nanotubes which could eventually be extended in length by chemical vapor deposition [9][10]. This strategy could eventually open a way to prepare monodisperse nanotubes with well defined physical properties. Our approach to synthesize loop-like aromatic compounds is based on the Diels–Alder
PDF
Album
Supp Info
Full Research Paper
Published 29 Mar 2010
Other Beilstein-Institut Open Science Activities