Electrospinning of poly(methyl methacrylate) nanofibers in a pump-free process
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Jasbir S. Bedi
Abstract
The effects of processing parameters, including solution concentration, viscosity, nozzle diameter, voltage bias and the nozzle to collector distance, on the morphology and diameters of poly(methyl methacrylate) (PMMA) fibers have been systematically investigated, using a unique pump-free electrospinning method. For PMMA solution concentrations less than the critical entanglement concentration, ce, prolate spheroid-shaped droplets or beads with fibers were formed, whereas at concentrations above ce, good quality bead-free fibers were formed. Quantitative analysis revealed a linear dependence between the solution viscosity and fiber diameter. Larger fiber diameters were achieved by increasing the nozzle diameter and voltage bias. Increasing the bias voltage has the additional effect of broadening the diameter distribution, as a result of splaying and splitting. By contrast, when the strength of the electrical field was reduced by increasing the distance between the nozzle and collector, the overall fiber diameter was reduced.
The project is supported by EPSRC CASE award. QC thanks Dr. S. Firth at University College London for donating the Jeol JSM820 SEM. QC also thanks Professor Norman Billingham for detailed discussion on the rheology properties of polymer solutions. JSB gratefully acknowledges the Commonwealth Scholarship Commission for his scholarship. JFCT acknowledges the support of EU Marie-Curie Actions and the ERC. The authors would like to thank PpTek Ltd. for supporting the project.
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©2013 by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Masthead
- Masthead
- Review
- Molecular iodine/polymer complexes
- Original articles
- Modification of PET fabrics by hyperbranched polymer: a comparative study of artificial neural networks (ANN) and statistical approach
- Electrospinning of poly(methyl methacrylate) nanofibers in a pump-free process
- A convenient method for preparation of polystyrene-single-walled carbon nanotubes by metal-catalyzed living radical polymerization method
- Dissolution/reprecipitation technique for waste polyolefin recycling using new pure and blend organic solvents
Articles in the same Issue
- Masthead
- Masthead
- Review
- Molecular iodine/polymer complexes
- Original articles
- Modification of PET fabrics by hyperbranched polymer: a comparative study of artificial neural networks (ANN) and statistical approach
- Electrospinning of poly(methyl methacrylate) nanofibers in a pump-free process
- A convenient method for preparation of polystyrene-single-walled carbon nanotubes by metal-catalyzed living radical polymerization method
- Dissolution/reprecipitation technique for waste polyolefin recycling using new pure and blend organic solvents
