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VOLUME 58 (1993) | ISSUE 1 | PAGE 23
Nonequilibrium dissociation of cellulose nitrate macromolecules by resonant IR laser light
A nonequilibrium dissociation of polymer macromolecules in the condensed phase by resonant IR laser light has been observed. The effect stems from particular features of the absorption of laser light by irregularities of the supermolecular structure of polymer chains and of the relaxation of vibrational energy along the long macromolecules of an amorphous-crystalline polymer. The extent to which the dissociation deviates from equilibrium increases with increasing disorder of the macromolecules.