Concentration of PUL, wt%

PEC/PUL ratio

Total polymer in water, wt%

FDS (nm)

Morphology

9.0

0.13

10.2

140 ± 19

Fiber

7.5

0.20

9.0

135 ± 25

Fiber

6.0

0.30

7.8

88 ± 17

Fiber

5.0

0.40

7.0

86 ± 29

Beaded fiber

4.5

0.47

6.7

60 ± 18

Beaded fiber

3.0

0.80

5.4

38 ± 12

Beaded fiber