✦ LIBER ✦

Energetic feasibility of adjacent re-entry chain folding in crystals of isotactic polypropylene

✍ Scribed by V. Petraccone; B. Pirozzi; S.V. Meille

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 427 KB
Volume: 25
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(89)90207-3

No coin nor oath required. For personal study only.

✦ Synopsis

Abstraet--Conformational energy calculations for the ~-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.

📜 SIMILAR VOLUMES

Chain Folding in Poly(p-phenylene sulfid

Chain Folding in Poly(p-phenylene sulfide): A Study of the Packing of the Adjacent Re-Entry Folds by Molecular Mechanics

✍ Roberto Napolitano; Beniamino Pirozzi 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 205 KB 👁 2 views

Studies of Adjacent Re-Entry Folds of Ch

Studies of Adjacent Re-Entry Folds of Chains of Syndiotactic l,2-Poly(1,3-butadiene) by Molecular Mechanics Calculations

✍ Roberto Napolitano; Beniamino Pirozzi 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 351 KB

## Abstract The mode of packing and the adjacent re‐entry folds of chains of syndiotactic 1,2‐poly(1,3‐butadiene) have been studied by molecular mechanics calculations with the use of various sets of potential functions. The results of the packing analysis indicate that the crystal grows preferenti

Models of Adjacent Re-Entry Folds in the

Models of Adjacent Re-Entry Folds in the β Form of Syndiotactic Polystyrene. Conformational and Packing Analysis by Molecular Mechanics

✍ Roberto Napolitano; Beniamino Pirozzi 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 738 KB