Polymer, Vol.41, No.17, 6679-6681, 2000
Oriented recrystallization of pre-oriented thin polymer films
The effects of a thin vacuum evaporated carbon film on the subsequent melting and recrystallization behavior of pre-oriented thin polymer films were studied by transmission electron microscopy and electron diffraction. It is found that a thin vacuum deposited carbon layer can keep the orientation of the pre-oriented thin polymer films after a complete melting and recrystallization. This process is repeatable. The recrystallization of the polymers can be performed even with the polymer films healed to a temperature more than 100 degrees C above their melting temperatures and kept at that temperature for more than 10 h.
Keywords:oriented crystallization;thin polymer films;transmission electron microscopy and electron diffraction