TABLE 1.

Average molecular masses, radius of gyration (R_g) values, and mass density (M_w/R_g) values of GXM

GXM derivation method	Mw (g/mol)	Rg (nm)	Mw/Rg (103)
CTAB precipitationa
Standard conditions	2.2 × 106	88.6	24.83
With stirring	1.8 × 106	79.4	22.6
Ultrafiltration	2.4 × 105	141.0	1.74

^aAs described by Cherniak et al. (8). CTAB-derived GXM samples were analyzed under standard conditions or after 24 h of stirring.