OTS adsorption: A dynamic QCM study

The uptake of octadecyltrichlorosilane (OTS) from an organic solution has been studied in situ and in real time by means of a quartz crystal microbalance (QCM) technique. Changes in both QCM frequency and resistance are reported for a range of OTS concentrations. In addition, the time dependence of OTS uptake has been used to calculate reaction constants. Silicon surfaces overall are characterized by higher levels of material uptake than gold.