Abstract
Thermal composition fluctuations in three diblock copolymers were studied with SANS as a function of temperature and pressure (0.1-200 MPa). In all cases the phase diagram shows an unusual shape insofar as with increasing pressure the order disorder temperature T(ODT) first decreases and then increases. The pressure induced changes of T(ODT) are caused by the increase of the enthalpic and entropic terms of the Flory-Huggins parameter. (C) 1998 Elsevier Science B.V. All rights reserved.
Original language | English |
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Journal | Physica B: Condensed Matter |
Volume | 241-243 |
Pages (from-to) | 1029-1031 |
ISSN | 0921-4526 |
DOIs | |
Publication status | Published - 1998 |