Oct., 1958
CONTACT ANGLESOF LIQUIDSON ESTERS OF AMYLOSE
mobilized and the resulting foil can be stripped from the substrate. It should be of interest t o measure the degree of stability of such induced configurations. The immobility of polymer chains and segments of chains is not absolute even in the solid state. l7 Also overturning of monolayer molecules and orientation of surface molecules in a multilayer film built up by spreading monolayers on top of one another is well kn0wn.'8~~~Recently (17) H. Mark and A. V. Tobolsky, "Physical Chemistry of High Polymeric Systems," Vol. 11, Interscience Publ. Inc., New York, N. Y., 1940. (18) I. Langmuir and I
