We report on the adsorption from solution of a family of triblock copolymers, copoly(ethylene oxide-propylene oxide-ethylene oxide) (PEO-PPO-PEO), on a gold surface modified by a methyl-terminated, self-assembled monolayer (SAM) of a long-chain alkanethiol (CH3(CH2)(10)SH). We employed a surface plasmon resonance (SPR) technique to determine polymer-adsorbed amounts. We also performed atomic force microscopy (AFM) in the liquid environment on a selected number of cases to discern the morphology of the copolymer-coated surfaces. This study shows that the adsorbed amounts go through a maximum near the critical micelle concentration (cmc) and that the process is only partially reversible. Trends in the adsorbed amounts with varying relative composition of the copolymer blocks are consistent with scaling law predictions for the adsorption of block copolymers from selective solvents. AFM imaging shows micellar aggregates at the surface for a copolymer with higher relative hydrophobic content. In contrast, for a copolymer with higher hydrophilic content, we observe a uniform, monolayer-like morphology. In both cases, cycling of the force on the AFM tip reveals the presence of a polymer brush.