Abstract
Blends of deuterated poly(methyl methacrylate) (d-PMMA) with poly(styrene-co-vinylphenol) (MPS), which contains 5, 10, or 15 mol % vinylphenol monomer units, and blends d-MPS (5%)/poly(butyl methacrylate) and d-MPS (5%)/PMMA are investigatee by neutron reflectivity. In the formation of blends, the excess volume of mixing was found to be negative for blends of MPS (5%) but positive for blends of MPS (10%) and MPS (15%). The volumes of all blends are decreased by anneling. The concentrations of MPS at both interfaces air/polymer and polymer/substrate tended to increase after annealing for all blends except the blend MPS (5%)/d-PMMA which showed a significant extent of composition changes
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