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@ARTICLE{Hofmann:867787,
author = {Hofmann, Eddie and Dulle, Martin and Liao, Xiaojian and
Greiner, Andreas and Förster, Stephan},
title = {{C}ontrolling {P}olymer {M}icrofiber {S}tructure by {M}icro
{S}olution {B}low {S}pinning},
journal = {Macromolecular chemistry and physics},
volume = {221},
number = {1},
issn = {1521-3935},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2019-06397},
pages = {1900453 -},
year = {2019},
abstract = {Recent progress in microfluidic technology allows
fabricating microfluidic devices to produce liquid microjets
with unprecedented control of the jet diameter and velocity.
Here it is demonstrated that microfluidic devices based on
the gas dynamic virtual nozzle principle can be excellently
used for micro solution blow spinning to continuously
fabricate microfibers with excellent control of the fiber
diameter and the internal crystalline alignment that
determines the mechanical properties. Fiber spinning
experiments with small‐ and wide‐angle X‐ray
scattering are combined to directly relate the macroscopic
spinning conditions to the bulk and molecular structure of
the resulting fibers. The elongational rate is shown as the
relevant parameter that transduces the nozzle flow
conditions to the local macromolecular structure and
orientation, and thus the mechanical properties of the
resulting fiber. It is observed that the spinning process
results in very uniform microfibers with a well‐defined
shish–kebab crystal structure, which evolves into an
extended chain crystal structure upon plastic deformation.
Thus, the presented microfluidic spinning methodology has
great implications for a precisely controlled production of
microfibers using miniaturized spinning devices.},
cin = {JCNS-1 / ICS-1},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)ICS-1-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551) /
6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6215 - Soft Matter, Health and Life Sciences (POF3-621)},
pid = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G4 /
G:(DE-HGF)POF3-6215},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000501355800001},
doi = {10.1002/macp.201900453},
url = {https://juser.fz-juelich.de/record/867787},
}