Effect of polydispersity on the phase behavior of polymer blends

Chieh-Tsung Lo, Soenke Seifert, Pappannan Thiyagarajan, Balaji Narasimhan

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The effect of polydispersity on polymer blend phase behavior is studied by in situ small-angle X-ray scattering. In a polydisperse polyethylene (PE)/isotactic polypropylene) (iPP) blend, the enthalpic portion of the interaction parameter is greater than that of a corresponding blend with lower polydispersity. This is attributed to the presence of long chains, which provide a higher interaction energy and packing constraint, reducing the system miscibility. As expected, the radius of gyration is higher in the system with higher polydispersity.

Original languageEnglish
Pages (from-to)533-536
Number of pages4
JournalMacromolecular Rapid Communications
Volume26
Issue number7
DOIs
Publication statusPublished - 2005 Apr 6

Fingerprint

Polydispersity
Polymer blends
Phase behavior
Polypropylenes
Polyethylene
X ray scattering
Polyethylenes
Solubility

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

Lo, Chieh-Tsung ; Seifert, Soenke ; Thiyagarajan, Pappannan ; Narasimhan, Balaji. / Effect of polydispersity on the phase behavior of polymer blends. In: Macromolecular Rapid Communications. 2005 ; Vol. 26, No. 7. pp. 533-536.
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Effect of polydispersity on the phase behavior of polymer blends. / Lo, Chieh-Tsung; Seifert, Soenke; Thiyagarajan, Pappannan; Narasimhan, Balaji.

In: Macromolecular Rapid Communications, Vol. 26, No. 7, 06.04.2005, p. 533-536.

Research output: Contribution to journalArticle

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