Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Formation of a highly ordered red phase in a MEH-PPV: polystyrene
  pseudogels   In this work, we demonstrate the formation of a "red-phase" poly[2-methoxy,
5-(2'- ethyl-hexoxy)-1,4-phenylene vinylene-PPV] (MEH-PPV) embedded into a host
matrix of highly entangled ultra-high molecular weight polystyrene
(MEH-PPV/UHMW PS pseudogel) that allows the simple processing of the MEH-PPV
solutions. We processed a "red-phase" in the gel, the gel shows that the
features what have beed demonstrated in the solution can be observed in the
processable gel for optoelectronics applications. [Yamagata, Hajime, and
Hestand, Nicholas J. and Spano, Frank C. and Kohler, Anna and Scharsich,
Christina and Hoffmann, Sebastian T. and Bassler, Heinz, The Journal of
Chemical Physics, 2013, 139, 114903]

25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg