<div dir="ltr"><div class="gmail_quote"><br><div dir="ltr"><b style="font-size:12.8px">DATE</b><span style="font-size:12.8px">: Friday, March 25th, 2016</span><b style="font-size:12.8px"><br><br></b><div style="font-size:12.8px"><b style="font-size:12.8px">TITLE</b><span style="font-size:12.8px">: </span> Confinement, Aging and Rejuvenation Effects in Polymer Films/Composites</div><div style="font-size:12.8px"><br style="font-size:12.8px"><b style="font-size:12.8px">TIME</b><span style="font-size:12.8px">: </span><span style="font-size:12.8px">3:30 PM</span><br style="font-size:12.8px"><br style="font-size:12.8px"><b style="font-size:12.8px">LOCATION</b><span style="font-size:12.8px">: GMCS 214</span><br style="font-size:12.8px"><br style="font-size:12.8px"><b style="font-size:12.8px">SPEAKER</b><span style="font-size:12.8px">: </span>
Dr. Alexey V. Lyulin. Theory of Polymers and Soft Matter Group, <span>Eindhoven University of Technology </span>(Technische Universiteit Eindhoven).
<span style="font-family:arial,helvetica,sans-serif;font-size:12.8px"></span></div><div style="font-size:12.8px"><br style="font-size:12.8px"><b style="font-size:12.8px">ABSTRACT</b><span style="font-size:12.8px">: </span>
In this presentation I will show our recent results on
molecular-dynamic (MD) simulations of thin polymer films. I will discuss
the
confinement effects for atactic polystyrene, natural rubber and generic
bead-rod random copolymer model. I will concentrate mainly on two
questions: - the influence of the confinement on the glass-transition temperature; - the influence of the mechanical deformation on the polymer segmental
mobility and peculiarities of the glass transition and Payne effect.<br><br></div><div style="font-size:12.8px">
The significant drop of the storage modulus under uniaxial deformation
(Payne effect) restrains the performance of the elastomer-based
composites and
the development of possible new applications. I will present and discuss
our LAMMPS and Gromacs MD simulations to study the mechanical
properties of
this family of nanocomposite materials. Our goal is to provide
simulational insights into the viscoelastic properties of filled
elastomers, and try
to connect the macroscopic mechanics with composite microstructure, the
strength of the polymer-filler interactions and the polymer mobility at
different scales.
</div><div style="font-size:12.8px"><span style="font-size:12.8px"><br></span></div><div style="font-size:12.8px"><b style="font-size:12.8px">HOST</b><span style="font-size:12.8px">: Dr. Arlette Baljon<br></span></div></div>
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SDSU Computational Science Research Center<br>
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<p>San Diego State University</p>
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<p>619 5947205/3430, Fax 619-594-2459</p><p> <a href="http://www.csrc.sdsu.edu/mimetic-book/" target="_blank">http://www.csrc.sdsu.edu/mimetic-book/</a></p></div>
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