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. 2021 Nov 26;13(23):4130. doi: 10.3390/polym13234130

Table 2.

The cross-sectional radii of gyration for alginate chains cross-linked by calcium chloride in 2.7 wt% aqueous solutions and gels of sodium alginate.

Concentration of CaCl2, mM Cross-Sectional Radius of Gyration Rg,c, Å
0 * 2.8 ± 0.2
6.3 3.3 ± 0.3
12.5 4.2 ± 0.1
25 5.6 ± 0.1

* In 250 mM NaCl.