Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Viscosity of macromolecules with complex architecture   It is well-known that the architecture of macromolecules plays an important
role in the hydrodynamics and viscosity of its semi-diluted solutions. However,
the systematic study of the rheology of macromolecules with complex topology,
such as microgels, remains a difficult task. In this work, we use the computer
simulations methods of non-equilibrium molecular dynamics to study the viscous
properties of randomly cross-linked microgels and compare it to multiple
reference systems (linear chains, 10-arm star polymers and hard spheres). We
show that the microgel cross-linking density and, thus, the particle shape,
plays crucial role in its viscosity. Also, in contrast to a simpler polymer
systems, microgel dispersions in good solvent show much less shear thinning.

25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex