Term: homogeneous polymer blend
https://doi.org/10.1351/goldbook.HT07582

Definition:
Polymer blend that is a single-phase structure.

Notes:
0) Modified from previous definition. The definition proposed here is preferred because it emphasizes the requirement for homogeneity over @MT07230-1@.
1) For a @P04736-2@ to be miscible it must obey the thermodynamic criteria of @MT07230-2@.
2) @MT07230-3@ is sometimes assigned erroneously on the basis that a blend exhibits a single Tg or is optically clear.
3) The miscible system can be thermodynamically @S05900@ or @M03872@.
4) For components of chain structures that would be expected to be miscible, @MT07230-4@ may not occur if molecular architecture is changed, e.g., by @CT07136@.

Related Terms:
1) miscibility (http://doi.org/10.1351/goldbook.MT07230-1).
2) polymer blend (http://doi.org/10.1351/goldbook.P04736-2).
3) miscibility (http://doi.org/10.1351/goldbook.MT07230-2).
4) miscibility (http://doi.org/10.1351/goldbook.MT07230-3).
5) stable (http://doi.org/10.1351/goldbook.S05900).
6) metastable (http://doi.org/10.1351/goldbook.M03872).
7) miscibility (http://doi.org/10.1351/goldbook.MT07230-4).
8) crosslinking (http://doi.org/10.1351/goldbook.CT07136).
9) polymer blend (http://doi.org/10.1351/goldbook.P04736-1).

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 (https://doi.org/10.1351/pac200779101801)

Citation: 'homogeneous polymer blend' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.HT07582

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