
390 HIGH PERFORMANCE POLYMERS
Figure 17.9 Synthesis of azobenzene containing
methacrylate [76].
O
O
H
N
Br OH
O
O
H
N
O
O
N
HO
NN
NN
+
N
NN
NN
O
O
N
HO
N
O
OH
N
HO
H
+
For example, the solubility may be improved by dye
molecules containing pendant hydroxyethyl groups
or by the incorporation of dimethylacrylamide in the
polymer. The latter improves also the reversibility of
the lighting dynamics.
In order to produce storage devices, polymers from
the monomers are produced and polymer films are pro-
duced by spin-coating from a solution. Films with a
thickness of typically 200 nm are prepared.
In the writing process, the samples are irradiated
from the polymer side with polarized laser ...