The state of a polymer solution for which the second
virial coefficient is zero.
Notes:
-
In some respects, a polymer solution in the θ state resembles an ideal solution and
the θ state may be referred to as a pseudo-ideal state. However, a solution in the
θ state must not be identified with an ideal solution.
-
The solvent involved is often referred to as 'θ solvent'.
-
It is assumed that the molar mass of the polymer is high.
Source:
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: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
