Droplets of polyethylene have been crystallized over a wide temperature ran
ge from about 77 to 110 degrees C. The nucleation rates have been measured
for a number of samples. It has been found that the nucleation rate remains
constant with time for nucleation at temperatures between 80 and 105 degre
es C; but that at lower temperatures nucleation accelerates and at higher t
emperatures decelerates as time passes. (C) 2000 Kluwer Academic Publishers
.