Based on matching Hildebrand Solubility Parameters () as closely as possible (ke

Question

Based on matching Hildebrand Solubility Parameters () as closely as possible (keep | solvent - polymer| <= 2), suggest 2 “good” solvents for each of the following polymers and 1 “poor” solvent for each. Report values used for each polymer/solvent combination. Do not select water as a “poor” solvent.

Poly(vinyl alcohol)

Poly(methyl methacrylate) Poly(vinyl chloride) Poly(acrylonitrile) Poly(dimethyl siloxane) Poly(ethylene oxide) Poly(ethylene) Poly(styrene) Nylon(6,6) Poly(tetrafluoroethylene)

Explanation / Answer

Poly(methyl methacrylate)    2

Poly(vinyl chloride)              1

Poly(acrylonitrile)                 1

Poly(dimethyl siloxane)       1

Poly(ethylene oxide)           2

Poly(ethylene)                    1

Poly(styrene)                     1

Nylon(6,6)                         1

Poly(tetrafluoroethylene)     2

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