Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Controlling Solvent Quality by Time: Self-Avoiding Sprints in
  Nonequilibrium Polymerization   A fundamental paradigm in polymer physics is that macromolecular
conformations in equilibrium can be described by universal scaling laws, being
key for structure, dynamics, and function of soft (biological) matter and in
the materials sciences. Here, we reveal that during diffusion-influenced,
nonequilibrium chain-growth polymerization, scaling laws change qualitatively,
in particular, the growing polymers exhibit a surprising self-avoiding walk
(SAW) behavior in poor and theta-solvents. Our analysis, based on
monomer-resolved reaction-diffusion computer simulations, demonstrates that
this phenomenon is a result of i) nonequilibrium monomer density depletion
correlations around the active polymerization site, leading to a locally
directed and self-avoiding growth, in conjunction with ii) chain (Rouse)
relaxation times larger than the competing polymerization reaction time. These
intrinsic nonequilibrium mechanisms are facilitated by fast and persistent
reaction-driven diffusion (sprints) of the active site, with analogies to
pseudo-chemotactic active Brownian particles. Our findings have implications
for time-controlled structure formation in polymer processing, as in, e.g.,
reactive self-assembly, photo-crosslinking, and 3D printing.

23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
9
The categories of this paper are: nlin