Table 2: Total solubility parameters ( ) of various solvents and cellulose acetate [14, 18].

LiquidSolubility parameter (MPa1/2)

Acetone (AC)19.9315.5010.407.005.39
Dimethylacetamide
(DMAc)
22.7716.8011.5010.205.88
Acetic acid21.3614.58.013.52.68
Methanol29.6015.1012.3022.3012.35
Chloroform1917.803.105.708.87
Water47.8315.6016.042.332.47
Celluloce acetate (CA)19.8914.907.1011.1012.40

= [4( )2 + ( )2 + ( )2]1/2.
= The Hansen component parameter for the solvent.
= The Hansen component parameter for the polymer.