Complex phase behavior of a weakly interacting binary polymer blend

Du Yeol Ryu, Dong Hyun Lee, Jin Jang, Jin Kon Kim, Kristopher A. Lavery, Thomas P. Russell

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The complex phase behavior of a weakly interacting binary polymer blend was studied. It was shown that the weakly interacting PS/poly(n-pentylmethacrylate) blend exhibits both a UCST and an LCST. The PS-block-poly(n-pentyl methacrylate) copolymers [PS-b-PnPMA] exhibit closed-loop phase behavior, where the lower disorder-to-order transition (LDOT) and upper-to-disorder transition (UODT) curves from the lower and upper bounds of closed loop. The major difference in the phase behavior of PS/PnPMA blends from that of PS-b-PnPMA copolymers was the lack of evidence of an upper critical solution transition (u-UCST) above an observed LCST in the blend system. The LCST was characterized by a negative volume change on mixing, resulting in enhanced miscibility.

Original languageEnglish
Pages (from-to)5851-5855
Number of pages5
JournalMacromolecules
Volume37
Issue number16
DOIs
Publication statusPublished - 2004 Aug 10

Fingerprint

Polymer blends
Phase behavior
Methacrylates
Copolymers
Solubility

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Ryu, D. Y., Lee, D. H., Jang, J., Kim, J. K., Lavery, K. A., & Russell, T. P. (2004). Complex phase behavior of a weakly interacting binary polymer blend. Macromolecules, 37(16), 5851-5855. https://doi.org/10.1021/ma049329l
Ryu, Du Yeol ; Lee, Dong Hyun ; Jang, Jin ; Kim, Jin Kon ; Lavery, Kristopher A. ; Russell, Thomas P. / Complex phase behavior of a weakly interacting binary polymer blend. In: Macromolecules. 2004 ; Vol. 37, No. 16. pp. 5851-5855.
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Ryu, DY, Lee, DH, Jang, J, Kim, JK, Lavery, KA & Russell, TP 2004, 'Complex phase behavior of a weakly interacting binary polymer blend', Macromolecules, vol. 37, no. 16, pp. 5851-5855. https://doi.org/10.1021/ma049329l

Complex phase behavior of a weakly interacting binary polymer blend. / Ryu, Du Yeol; Lee, Dong Hyun; Jang, Jin; Kim, Jin Kon; Lavery, Kristopher A.; Russell, Thomas P.

In: Macromolecules, Vol. 37, No. 16, 10.08.2004, p. 5851-5855.

Research output: Contribution to journalArticle

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Ryu DY, Lee DH, Jang J, Kim JK, Lavery KA, Russell TP. Complex phase behavior of a weakly interacting binary polymer blend. Macromolecules. 2004 Aug 10;37(16):5851-5855. https://doi.org/10.1021/ma049329l