(Solved): How is critical surface tension related to wettability? Pick five polymers from Table 1, draw their& ...

How is critical surface tension related to wettability? Pick five polymers from Table 1, draw their chemical formulas of the chain repeat units, and attempt to relate these structures to the wettability. Where inconsistencies occur, explain them using Table 2.
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\begin{tabular}{|l|l|} \hline TABLE 1 & Critical Surface Tension Values for Common Polymeric Materials Calculated from Contact Angle \\ \hline Measurements \\ \hline Material & Critical Surface \\ \hline Polytetrafluoroethylene & Tension (dynes/cm) \\ \hline Poly(dimethyl siloxane) & 19 \\ Poly(vinylidine fluoride) & 24 \\ Poly(vinyl fluoride) & 25 \\ Polyethylene & 28 \\ Polystyrene & 31 \\ Poly(2-hydroxyethyl methacrylate) & 33 \\ Poly(vinyl alcohol) & 37 \\ Poly(methyl methacrylate) & 39 \\ Poly(vinyl chloride) & 39 \\ Polycaproamide (nylon 6) & 42 \\ Poly(ethylene oxide)-diol & 43 \\ Poly(ethylene terephthalate) & 43 \\ Polyacrylonitrile & 50 \\ \hline \end{tabular} TABLE 2 Concerns in Contact Angle Measurement - The measurement is operator dependent (for manual, goniometer instruments) - Surface roughness influences the results - Surface heterogeneity influences the results - The liquids used are easily contaminated (typically reducing their \( \gamma_{\mid v} \) ) - Liquid evaporation and temperature changes can impact measurement - The liquids used can reorient the surface structure - The liquids used can absorb into the surface, leading to swelling - The liquids used can dissolve the surface - Few sample geometries are appropriate for contact angle measurement - Information on surface structure must be inferred from the data obtained