We have investigated the temperature dependence of the micro-structure of p
almitoyl cellulose Langmuir-Blodgett film by high resolution transmission e
lectron microscope (TEM). The existence of the well-defined solid-like stat
e at temperatures lower than 303 K, and the deformed solid-like state at te
mperatures higher than 303 K have been examined by (d pi/dA) value. The ave
rage grain size of about 200 nm has been observed at lower subphase tempera
tures and the size decreased with the increase of temperature up to the tra
nsition temperature of 303 K, and the size of deformed solid-film state inc
reased with further increase of subphase temperature. (C) 1999 Elsevier Sci
ence B.V. All rights reserved.