Goldbook title
IUPAC > Gold Book > alphabetical index > U > upper critical solution temperature
Gold G Icon
Indexes Download

upper critical solution temperature

Recommended acronym: UCST

Critical temperature above which a mixture is miscible.
  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 constituent polymer(s).
  3. For a mixture containing or consisting of polymeric components, these may be different polymers or species of different molar mass of the same polymer.
PAC, 2004, 76, 1985 (Definition of terms related to polymer blends, composites, and multiphase polymeric materials (IUPAC Recommendations 2004)) on page 1999
Interactive Link Maps
First Level Second Level Third Level
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term:
Original PDF version: The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
Current PDF version | Version for print | History of this term