Substrate | Solubility in water | Impurities | CrI[%] | DP
w
[AGU] | d
p
[μm] | Brand | Product code |
---|
CMC | Soluble* | Pure* | - | 400‡ | - | Fluka§ | 21900 |
Avicel PH101 | Insoluble* | Pure* | 82 | 200 - 240 | 43.82 | Fluka§ | 11635 |
Sigmacell 101 | Insoluble* | Pure* | Amorphous¶ | 1590 - 1960 | 15.86 | Sigma§ | S6790 |
α-Cellulose | Insoluble* | impure: Xylan† | 64 | 2140 - 2420 | 68.77 | Sigma§ | C8002 |
- * Reference [7].
- † Reference [11].
- ‡ According to manufacture's data.
- § Fluka and Sigma are subsidiaries of Sigma-Aldrich.
- ¶ In the case of Sigmacell 101, no clearly resolved X-ray diffraction profiles were detected. Instead, a smooth peak was detected which is typical for amorphous cellulose according to Hall et al. [107]. Pala et al. [37] found similar results for Sigmacell 101.
- CrI, the crystallinity index of cellulose; DP
w
, the weight-average degree of polymerization;
- d
P
, the geometric mean particle size; CMC, carboxymethyl cellulose.