Conformational energy calculations for the alpha-form of isotactic polypropylene were carried out for possible adjacent re-entry fold schemes resulting from the inherent directionality of isotatic chains and from examination of the crystalline structure. The calculated fold conformational energy is compatible with the literature values of fold surface free energy.
ENERGETIC FEASIBILITY OF ADJACENT REENTRY CHAIN FOLDING IN CRYSTALS OF ISOTACTIC POLYPROPYLENE
MEILLE, STEFANO VALDO
1989-01-01
Abstract
Conformational energy calculations for the alpha-form of isotactic polypropylene were carried out for possible adjacent re-entry fold schemes resulting from the inherent directionality of isotatic chains and from examination of the crystalline structure. The calculated fold conformational energy is compatible with the literature values of fold surface free energy.File in questo prodotto:
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