Tacticity and crystallographic considerations are used to predict fold models for a perfect crystal of isotactic polypropylene (α-form). If we assume adjacent re-entry chain folding we conclude that the folding plane must be parallel to the (010) plane. This is in agreement with morphological experimental evidence. We also show that this result is likely to apply even to non-perfect crystals.
ANALYSIS OF CHAIN FOLDING IN CRYSTALLINE ISOTACTIC POLYPROPYLENE - THE IMPLICATIONS OF TACTICITY ANDCRYSTALLOGRAPHIC SYMMETRY
MEILLE, STEFANO VALDO
1986-01-01
Abstract
Tacticity and crystallographic considerations are used to predict fold models for a perfect crystal of isotactic polypropylene (α-form). If we assume adjacent re-entry chain folding we conclude that the folding plane must be parallel to the (010) plane. This is in agreement with morphological experimental evidence. We also show that this result is likely to apply even to non-perfect crystals.File in questo prodotto:
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