Chain dimensions in polyethylene oxide/poly(methyl methacrylate) blends

Ilan Zeroni, Timothy P. Lodge

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Terminal dynamics data for poly(ethylene oxide) (PEO)/poly(methyl methacrylate) (PMMA) blends were obtained via rheometry, using high molecular weight tracers in low molecular weight blend matrices of varying composition and over a wide temperature range. The method used to extract component terminal dynamics by blending high molecular weight tracers in low molecular weight matrices could be affected by significant swelling of the tracer chain. The blend comprised duterated, high molecular weight tracer chains in three hydrogeneted and low molecular weight matrices of varying compositions. Experimental investigation suggested that large molar mass tracers in a low molar mass matrix should exhibit swelling, when the degree of polymerization of the matrix is less than the square root of the degree of polymerization of the tracer.

Original languageEnglish (US)
Pages (from-to)1050-1052
Number of pages3
JournalMacromolecules
Volume41
Issue number3
DOIs
StatePublished - Feb 12 2008

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