Journal article

Publication year: 2018

Journal: Macromolecular Chemistry and Physics

Volume number: 219

Issue number: 5

ISSN: 1022-1352

DOI Link: https://doi.org/10.1002/macp.201700471

Publisher: Wiley

Abstract: 
Poly(divinylbenzene) (PDVB) nanofibers are synthesized by electrospinning dispersions of PDVB nanoparticles (diameter 40-90 nm) derived by miniemulsion polymerization. Interparticle crosslinking is achieved by addition of a radical starter after electrospinning endowing the fibers with high solvent-stability. The fibers exhibit a Brunauer-Emmett-Teller (BET) surface area in the range of approximate to 30-70 m(2) g(-1) due to internal mesoporosity, which originates from the interparticle space. Spinning parameters like the concentrations of spin polymer and nanoparticles, as well as the nanoparticle diameter, are systematically varied to investigate the influence of these parameters on the mesopore structure. The fiber morphology is studied by scanning electron microscopy and the mesopore size, volume, and BET surface area are determined by nitrogen physisorption measurements. The findings indicate that the pore size mainly depends on the PDVB nanoparticle diameter. As a main finding, the fiber diameter can be adjusted by the concentration of spin polymer or nanoparticles without changing the mesopore diameter. Chlorine-functionalized fibers are synthesized by electrospinning of poly(divinylbenzene-co-4-vinylbenzyl chloride) nanoparticle dispersions. Chlorine groups are further used for the covalent immobilization of an organocatalyst (2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)).

Harvard Citation style: Migenda, J., Werner, S., Ellinghaus, R. and Smarsly, B. (2018) Mesoporous Poly(divinylbenzene) Fibers Based On Crosslinked Nanoparticles, Macromolecular Chemistry and Physics, 219(5), Article 1700471. https://doi.org/10.1002/macp.201700471

APA Citation style: Migenda, J., Werner, S., Ellinghaus, R., & Smarsly, B. (2018). Mesoporous Poly(divinylbenzene) Fibers Based On Crosslinked Nanoparticles. Macromolecular Chemistry and Physics. 219(5), Article 1700471. https://doi.org/10.1002/macp.201700471