b**s
发帖数: 589 | 1 The property most commonly relied upon to answer this question is solubility
behavior. Homopolymer blends and copolymers respond to extraction with
selective solvents and to solvent-nonsolvent fractionating techniques such as
fractional precipitation, column fractionating, and turbidometric situations.
These methods are simple and reasonably effective, particularly with systems
containing segments that differ significantly in their chemical structure
and/or physical state, e.g., polar-nonpolar |
|
