METHOD AND PROGRAM FOR ANALYZING MOLECULAR MOTION OF POLYMER COMPOUND

A method for analyzing the molecular motion of a polymer compound which comprises forming, according to the reptation theory, tube−constituting elements composing each polymer molecule through a macroscopic operation based on an entanglement molecular weight with respect to the polymer molecule of the polymer compound, subjecting the position coordinates and orientation vectors of the tube−constituting elements, the numbers of monomers in the tube−constituting elements, and the tube−constituting elements playing opposite at the formation of entanglement, to time development according to Langevin equation over the unit time defined by the formula (4) (step 201), subjecting the numbers of monomers in the tube−constituting elements to time development according to equation (2) (step 202), monitoring the number (n) of monomers in the tube−constituting element positioning in each terminal of the polymer molecule, and changing the tube−constituting elements playing opposite at the formation of entanglement according to the formula (5).