Broad-Purpose Solutions of N-Chlorotaurine: A Convenient Synthetic Approach and Comparative Evaluation of Stability and Antimicrobial Activity
Table 1
The main characteristics of the samples of chlorine-active polymers used in research.
Parameter
“Granules”
“Fiber”
Polymer carrier
Macroporous copolymer of styrene with divinylbenzene in granular form
Staple cation-exchange fiber FIBAN K-4
Functional group
-SO2-N(Na)Cl
-SO2-N(Na)Cl
The concentration of immobilized active chlorine (% w/w)
3.20
5.10
The concentration of immobilized chlorine atoms as a component of N-chlorosulfonamide fragment (% w/w)
1.6
2.55
Density (g/mL)
0.87–0.89
0.31–0.33
Humidity of air-dry product (%)
11.0
8.0
pH of the aqueous extract (pH units)
11.3
9.8
Water absorption (%)
150
820
The content of free SO3H-groups (mol/g)
0.2–0.3
0.5–0.7
The average size of the granules (mm)
0.5
—
Monofilament diameter (μ)
—
40–50
Fiber thickness (mm)
—
2-3
Refers to the pH of 200 mL of water purified by reverse osmosis containing prewashed swollen polymer (10 g of “granules” or 5.6 g of “fiber”) before adding taurine.
