Jb. Peng et al., THE VISCOELASTIC PROPERTIES OF MONOLAYERS OF POLYMERIC AMPHIPHILES WITH MESOGENIC GROUPS, Thin solid films, 242(1-2), 1994, pp. 254-257
The viscoelastic behavior of monolayers of three polymeric amphiphiles
with hydrophobic mesogenic side chains was observed by dynamic measur
ements. The copolymer with a long flexible and hydrophilic main chain
between side chains exhibited very low values of viscosity and shear m
odulus at all accessible surface pressures. For the other two polymers
with shorter segments of main chain between side chains these values
increased steeply with compression through areas lower than 0.4 nm2 pe
r monomer, reaching viscosities as high as 1 N s m-1 and shear moduli
of 10 mN m-1.