We first examine the effect of the sidechain Lennard-Jones parameters on helix stability and cooperativity through a series of REMD simulations. These effects are assessed by analyzing the plots of heat capacity and average native contact fraction as functions of temperature. We will hereon refer to the plot of average value of native contact fraction versus temperature as simply "native contacts curve". A foldamer's melting point is a measure of stability, indicative of the level of resistance to thermal denaturation. The sigmoid width parameter (d) of the native contacts curve and full-width half-maximum (FWHM) of the heat capacity curve are each measures of folding cooperativity. A more cooperative foldamer undergoes the folding transition over a narrower temperature range.