ome firm faster
and dimensions of the droplet were preserved. It is reasonable
that at lower temperatures slower coagulation packed cellulose
molecules more densely and proceeding coagulation inside of the
skin layer pulled outer layers closer and caused slight shrinking of
the bead. Changes were observed also in size distribution values
(Table 3). When temperature increased, peak values increased and
distributions narrowed. Since bigger beads can hold more water
inside, weight increased with volume. Because volume and weight
increased simultaneously, porosity values changed relatively little
(Fig. 2A, lower). However, decrease in porosity at 5–25 ◦C can be
seen, followed by increase at 50 ◦C. This indicates higher proportion of micro- and small mesoropores at 25 ◦C and macropores at
50 ◦C.