Nanorheology of polymers, block copolymers, and complex fluids. Demirel, A. Levent; Cai, Lenore; Dhinojwala, Ali; Granick, Steve; Drake, J. M. Dep. Mater. Sci. Eng., Univ. Illinois, Urbana, IL, USA. Mater. Res. Soc. Symp. Proc. (1995), 366(Dynamics in Small Confining Systems II), 113-22. CODEN: MRSPDH ISSN: 0272-9172. Journal; General Review written in English. CAN 123:33972 AN 1995:630561 CAPLUS

A review with 33 refs. exams. the shear rheol. of mol.-thin films of fluids as it depends on sinusoidal frequency (linear response) or on sliding velocity (nonlinear response). Building upon previous identification of a solid-like state that is induced by confinement, it is shown that the shear-induced transition to a sliding state in which the viscous dissipation is essentially velocity-independent. Other ongoing studies involve shear-induced changes in the fluorescence of confined fluorescent probes, shear dilatancy, and the contrast between the shear of simple nonpolar fluids, and block copolymers.