introductionofhotairflow duringmeltelectrospinningincreased
the environmentaltemperature,thusprolongedthetimeperiod
for electricforcetostretchthespinning filaments/fibers; further-
more, thehotairflowwithfastspeedcouldalsoresultinaddi-
tional stretchingforce.Therefore,thePLLA fibers meltelectrospun
under theconditionofhotterairflow withfasterspeedpossessed
higher degreesofmacromolecularorientationandcrystallinity.It
is envisionedthatthepreparedmeltelectrospunPLLA fibers with
relativelyhighmacromolecularorientationandcrystallinity(thus
relativelyhighmechanicalproperties)wouldbeparticularlyuseful
in futurebiomedicalstudies.
Acknowledgements