Temperature-induced Transitions
in the System SorbateMethacrylic Polymer

N. P. Platonova*, O. G. Tataurova*, and J. Hradil**

* Institute of Physical Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117915 Russia
** Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czechia

Received March 22, 1996

Abstract—Inverse gas chromatography is used to study sorption of some organic substances by porous meth-
acrylic terpolymers. The glass transition temperatures of the terpolymers are determined, which increase with
the content of styrene. The second-order phase transition is discovered with hexane and cyclohexane as sor-
bates. A suggestion is made that sorption and dissolution of various polar substances take place in the regions
enriched with epoxypropyl groups, whereas hexane is sorbed and dissolves in the styrene-containing regions of
the terpolymers.

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