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How To Make Polymethylmethacrylate Nanofibers


Schematic of the spinning process used by Weitz et al. and scanning electron microscopy images of            

In 2008, Weitz et al. found that polymethylmethacrylate (PMMA) nanofibers could be collected at the edge of the spin-coater and this could be regarded as a prototype system to produce nanofibers for other polymers (as shown in Fig. 10.1). In their experiment, 5 wt% PMMA solution in chlorobenzene was placed in the middle of the chuck of a spin-coater and the chuck was subsequently rotated at a speed of 3000 rpm for a few seconds. As shown in Fig. 10.1, the nanofibers were formed at the end of the polymer fingers, which can be explained by a Rayleighe Taylor instability at the aireliquid interface.

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