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Methyl shifts Miscibility

The self-concentration model by Lodge and McLeish can be also employed to describe the relaxation map of a miscible blend system. In reference Mpoukouvalas and Floudas (2008), Floudas et al. report dielectric data for the miscible blend poly (methyl methacrylate) (PMMA) and poly(ethylene oxide) (PEO) (see Fig. 12.22). As expected, with increasing concentration of PEO the relaxation rates shifts to lower temperatures. The data can be modeled by assuming the Vogel temperature To in the VFT equation (see Eq. 12.45) to be dependent on the effective concentration according to Eq. 12.57 ... [Pg.1339]

PVPh SMAc Styrene-methyl acrylate CP Carbonyl stretching bands shifts determined by FTIR used to correlate degree of hydrogen bonding association model applied to predict window of miscibility for the PVPh/SMAc blend 303... [Pg.300]

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See also in sourсe #XX -- [ Pg.304 ]



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