Polymer blend that is a single-phase structure.
Notes:
- Modified from previous definition. The definition proposed here is preferred
because it emphasizes the requirement for homogeneity over miscibility.
- For a polymer blend to be miscible it must obey the thermodynamic criteria of miscibility.
- Miscibility is sometimes assigned erroneously on the basis that a blend
exhibits a single
or is optically clear.
- The miscible system can be thermodynamically stable or metastable.
- For components of chain structures that would be expected to be miscible,
miscibility may not occur if molecular architecture is changed, e.g., by crosslinking.
Source:
PAC, 2007, 79, 1801
(Definitions of terms relating to the structure and processing of sols, gels, networks,
and inorganic-organic hybrid materials (IUPAC Recommendations 2007))
on page 1817