Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mini-bandstructure tailoring in pi-conjugated periodic block copolymers
  employing the envelope crystalline-orbital method   A strategy for the systematic design of polymeric superlattices with
tailor-made mini-bandgaps and carrier mini-effective masses is described and
computationally implemented by means of an envelope crystalline-orbital method,
which is a straightforward adaptation for molecules of the envelope-function
approximation widely used in solid-state physics. Such strategy relies on the
construction of pi-conjugated periodic block copolymers from well-characterized
parent polymers, in such a way that the above-mentioned electronic parameters
can be predicted from the lengths of the blocks. Illustrative calculations for
prototypical (PPP_x-PDA_y)_n superlattices demonstrate the plausibility of the
strategy and the advantages of the computational implementation employed.

11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas