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Natural abundance 15 n solid‐state nmr study of nylon‐6 in blends
Author(s) -
Tavares Maria Inês B.,
De Souza Cláudia M. G.
Publication year - 2003
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.13108
Subject(s) - materials science , plasticizer , solvent , nuclear magnetic resonance spectroscopy , solid state nuclear magnetic resonance , casting , polymer chemistry , carbon 13 nmr , chemical engineering , composite material , chemistry , nuclear magnetic resonance , organic chemistry , physics , engineering
Natural abundance solid‐state nuclear magnetic resonance spectroscopy (NMR) of nitrogen‐15 ( 15 N) was applied to investigate the films of nylon‐6 and their blends with poly(propylene oxide) (PPO). The NMR 15 N results allowed us to identify the crystalline forms present in these blends and also confirmed the previous NMR results obtained by 13 C‐NMR study. From all NMR data the antiplasticization phenomena and plasticization effects caused by PPO content, in the blends were characterized. The polyoxide action is a function of its proportion. However, because the samples were prepared by solution casting, the residual solvent action cannot be ignored. The 15 N chemical shift changes were influenced by both PPO and residual solvent. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3872–3875, 2003