Question: 1. The Flory-Huggins parameter between polystyrene (PS) and poly(methyl methacrylate) (PMMA) is given by: 1.96 x=0.0129 + (1) T (i) For a blend of PS/PMMA

1. The Flory-Huggins parameter between polystyrene (PS) and poly(methyl methacrylate) (PMMA)

1. The Flory-Huggins parameter between polystyrene (PS) and poly(methyl methacrylate) (PMMA) is given by: 1.96 x=0.0129 + (1) T (i) For a blend of PS/PMMA (NA = NB = 1000) containing a PS volume fraction of $ = 0.20, will the blend phase separate by spinodal decomposition or nucleation and growth? Justify your answer mathematically. (ii) What is the critical volume fraction (c) and interaction parameter (Xe)? 1. The Flory-Huggins parameter between polystyrene (PS) and poly(methyl methacrylate) (PMMA) is given by: 1.96 x=0.0129 + (1) T (i) For a blend of PS/PMMA (NA = NB = 1000) containing a PS volume fraction of $ = 0.20, will the blend phase separate by spinodal decomposition or nucleation and growth? Justify your answer mathematically. (ii) What is the critical volume fraction (c) and interaction parameter (Xe)

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