A drastic change happened, when NaHA molecules in solutions
at both low and high NaHA concentrations suffered the
coupling reaction with dendrimers at [1/0.01]. As seen in Fig. 3,
NaHA domains in a spin-coated film prepared from a 0.004 wt%
solution changed to zones with two-fold thickness of monolayer.
It was assumed that the zones became dense by strong intermolecular
linkages between NaHAs through dendrimers, since
the separation between NaHA strings in the zone was not found
any more, different from a case of NaHAs free from the cooperation
of dendrimers. On the other hand, on a film from a
0.04 wt% solution (Fig. 4), large spherical beads (with about
10nm height and submicron width) were linked by strings. It
can be mentioned that a lot of dendrimers and NaHA molecules
form large globules or aggregates after the coupling reaction,
and the remaining (free) NaHA chains connects globules (or
aggregates).