Effect of hydrostatic pressure on closed-loop phase behavior of block copolymers

Du Yeol Ryu, Dong Jun Lee, Jin Kon Kim, Kristopher A. Lavery, Thomas P. Russell, Young Soo Han, Baek Seok Seong, Chang Hee Lee, P. Thiyagarajan

Research output: Contribution to journalArticlepeer-review

72 Citations (Scopus)

Abstract

An entropically driven closed-loop phase behavior was observed for dPS-PnPMA diblock copolymers. The pressure dependence of the TLDOT and TUODT were found to be similar in magnitude, though opposite in sign. The magnitude of the pressure coefficients was consistent with theoretical arguments with that predicted by the Clausius-Clapeyron equation.

Original languageEnglish
Pages (from-to)235501/1-235501/4
JournalPhysical review letters
Volume90
Issue number23
Publication statusPublished - 2003 Jun 13

Bibliographical note

Funding Information:
We are grateful to Professor J. Cho at Dankook University for the helpful discussions. This work was supported by National RND project for Nano Science and Technology and Hanaro program, and the Depart ?>ment of Energy, the Office of Basic Energy Science. SANS experiments were performed at Hanaro SANS beam line supported by KAERI and at IPNS at Argonne National Lab funded by the US-DOE, BES under Contract No. W-31-109-ENG-38 to the University of Chicago.

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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