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Shrinkage and retractive force of drawn isotactic polypropylene during heating

โœ Scribed by F. De Candia; G. Romano; V. Vittoria; A. Peterlin

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
874 KB
Volume
30
Category
Article
ISSN
0021-8995

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13C-NMR spectra of isotactic polypropyle
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โœ Hiroshi Tanaka; Hiromichi Harada ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 263 KB

The line-shape of ~3C-NMR spectra of highly crystalline isotactic polypropylene film during stretching and subsequent shrinkage was investigated. Well-resolved splittings of the resonance peaks of methylene and methyl carbons before stretching disappear with increasing stretching ratio (2 > 10) and