Abstract
This paper describes a new method for estimating nanometer order density distribution of polyethylene with an energy-filtering transmission electron microscope. Mass thickness distribution can be measured by a zeroloss electron micrograph and an unfiltered electron micrograph or other combinations of electron micrographs with different energy loss electron. Density distribution can be estimated through mass thickness distribution and geometrical thickness distribution. This paper proposes a method to estimate the geometrical thickness distribution using known lamellar crystalline density of polyethylene and finally estimates nanometer order density distribution. Experimental result shows the estimated density distribution seems to be reasonable in terms of average density.
