Solid-State 13C NMR Study of Poly(vinyl
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Simona Lai; Mariano Casu; Giuseppe Saba; Adolfo Lai; Ivan Husu; Giancarlo Masci;
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Article
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2002
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Elsevier Science
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English
β 226 KB
Poly(vinyl alcohol) (PVA) with 55% and 61% syndiotacticity, and their related dry and hydrated gels obtained by two different freeze-thawing cycles have been investigated using the solid-state 13C CP-MAS NMR technique. From a comparative analysis of the spectra, evidence was obtained that the gelati