isomorphic polymer blend

https://doi.org/10.1351/goldbook.IT07233
@P04736@ of two or more different semi-crystalline polymers that are miscible in the crystalline state as well as in the molten state.
Notes:
1. Such a blend exhibits a single, composition-dependent @G02641@, $$T_{\text{g}}$$, and a single, composition-dependent @M03821@ point, $$T_{\text{m}}$$.
2. This behaviour is extremely rare; very few cases are known.
Source:
PAC, 2004, 76, 1985. (Definition of terms related to polymer blends, composites, and multiphase polymeric materials (IUPAC Recommendations 2004)) on page 1988 [Terms] [Paper]