Polystyrene comb architectures as model systems for the optimized solution electrospinning of branched polymers
Journal article, 2016

The bead to bead-free fibers transition for electrospun filaments was investigated for well-defined linear and comb homopolymers. A series of monodisperse model comb structures with well-defined backbone and side chains was synthesized using anionic polymerization of polystyrene (PS). All model combs had the same backbone and a similar total molecular weight. The length and number of branches was varied, but the total number of monomers in the side chains was nearly constant. Solutions of these polystyrenes in N,N-dimethylformamide (DMF) were electrospun under identical conditions to determine the effect of molecular topology on the morphology of the fibers. The morphology and fiber diameter for all PS model polymers depended on the zero shear viscosity, η0. The comb solutions generally formed fibers at lower η0 and the fibers had larger diameters compared with linear polystyrene. The bead to fiber transition occurred at substantially lower polymer concentrations for combs with fewer, but longer branches.





Kamran Riazi

Karlsruhe Institute of Technology (KIT)

Jennifer Kübel

Karlsruhe Institute of Technology (KIT)

Mahdi Abbasi

Karlsruhe Institute of Technology (KIT)

Krystyna Bachtin

Karlsruhe Institute of Technology (KIT)

Helmholtz-Institut Ulm (HIU)

Sylvia Indris

Helmholtz-Institut Ulm (HIU)

Karlsruhe Institute of Technology (KIT)

Helmut Ehrenberg

Karlsruhe Institute of Technology (KIT)

Helmholtz-Institut Ulm (HIU)

Roland Kádár

Chalmers, Materials and Manufacturing Technology, Polymeric Materials and Composites

Manfred Wilhelm

Karlsruhe Institute of Technology (KIT)


0032-3861 (ISSN)

Vol. 104 8 240-250

Subject Categories

Polymer Chemistry

Manufacturing, Surface and Joining Technology

Textile, Rubber and Polymeric Materials

Areas of Advance

Materials Science



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