Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Temperature-driven volume transition in hydrogels: phase--coexistence
  and interface localization   We study volume transition phenomenon in hydrogels within the framework of
Flory-Rehner thermodynamic modelling; we show that starting from different
models for the Flory parameter different conclusions can be achieved, in terms
of admissible coexisting equilibria of the system. In particular, with explicit
reference to a one-dimensional problem we establish the ranges of both
temperature and traction which allow for the coexistence of a swollen and a
shrunk phase. Through consideration of an augmented Flory-Rehner free-energy,
which also accounts for the gradient of volume changes, we determine the
position of the interface between the coexisting phases, and capture the
connection profile between them.

29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph