upper critical solution temperature

https://doi.org/10.1351/goldbook.UT07280
@C01402@ above which a mixture is miscible.
Notes:
  1. Above the UCST and below the LCST, if it exists, a single phase exists for all compositions.
  2. The UCST depends upon the pressure and molar-mass distributions of the @C01281@ polymer(s).
  3. For a mixture containing or consisting of @M03667@ components, these may be different polymers or species of different molar mass of the same polymer.
Source:
PAC, 2004, 76, 1985. (Definition of terms related to polymer blends, composites, and multiphase polymeric materials (IUPAC Recommendations 2004)) on page 1999 [Terms] [Paper]