Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session C25: Polymer Solutions and Blends
2:30 PM–5:30 PM,
Monday, March 4, 2019
BCEC
Room: 160A
Sponsoring
Unit:
DPOLY
Chair: Dong Meng, Mississippi State University
Abstract: C25.00010 : Conformations of bottlebrush polymers in dilute solution
4:18 PM–4:30 PM
Presenter:
Sarit Dutta
(University of Illinois at Urbana-Champaign)
Authors:
Sarit Dutta
(University of Illinois at Urbana-Champaign)
Mathew Wade
(University of Illinois at Urbana-Champaign)
Dylan Walsh
(University of Illinois at Urbana-Champaign)
Damien Guironnet
(University of Illinois at Urbana-Champaign)
Simon Rogers
(University of Illinois at Urbana-Champaign)
Charles Sing
(University of Illinois at Urbana-Champaign)
central backbone chain with a large number of side chains emanating from it.
As the overall structure and stiffness deviates considerably from that of a
linear chain, it is important to understand the role of various architectural
parameters that determine the conformations of a bottlebrush molecule. We
present results that highlight the effects of backbone length, side chain
length, and grafting density on the equilibrium static and near-equilibrium
dynamic properties of bottlebrushes in dilute solution. Our results are based on
a combination of viscometric measurements and computer simulations. The
experiments were performed on a series of low polydispersity bottlebrushes
comprising of poly(norbornene) backbone and poly(lactic acid) side chains. The
simulations were performed on a coarse-grained bead-spring model using a
combination of Brownian Dynamics and Monte Carlo. The simulation predictions
show quantitative agreement with experimental results, enabling us to probe
further structural details not easily amenable to experiments.
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