Figure 8
(a) Intermediate scattering functions of the PNIPAM brush measured in the grafted state at an incident angle of 0.2° (red) and 1.0° (green). Data were normalized according to the fitting amplitude. (b) Schematic illustration of the evanescent wave intensity distribution within a PNIPAM brush. The red–green color transition indicates the depths probed at different incident angles in grazing-incidence geometry; colors correspond to the data in (a). |