Premium
The effect of orientation on the CO 2 sorption of polystyrene
Author(s) -
Carfagna C.,
Nicodemo L.,
Nicolais L.
Publication year - 1987
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760271710
Subject(s) - polystyrene , materials science , sorption , birefringence , shrinkage , orientation (vector space) , polymer , expanded polystyrene , composite material , thermal , macromolecule , chemical engineering , polymer chemistry , thermodynamics , optics , organic chemistry , adsorption , chemistry , geometry , biochemistry , physics , mathematics , engineering
The chain orientation, induced by hot drawing, decreases the sorption capacity of polystyrene due to the tighter packing of macromolecules in the oriented material. Density measurements and decay of birefringence indicate that the loss of orientation Is a much more rapid phenomenon than the thermal shrinkage of the polymer.