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Nuclear magnetic resonance study of commercial poly(vinyl acetate)
Author(s) -
De Souza Cláudia M. G.,
Tavares Maria Inês B.
Publication year - 1998
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/(sici)1097-4628(19981219)70:12<2457::aid-app18>3.0.co;2-9
Subject(s) - vinyl acetate , magic angle spinning , polymer , solid state nuclear magnetic resonance , dephasing , monomer , materials science , spinning , nuclear magnetic resonance spectroscopy , relaxation (psychology) , macromolecule , polymer chemistry , nuclear magnetic resonance , chemistry , analytical chemistry (journal) , copolymer , physics , organic chemistry , condensed matter physics , composite material , psychology , social psychology , biochemistry
The commercial poly(vinyl acetate) bulk was studied by nuclear magnetic resonance (NMR) at solution and solid state to understand much better the behavior of this polymer to obtain information on structure, sample molecular mobility, and heterogeneity. To analyze the behavior of this polymer, we have chosen NMR techniques, such as carbon‐13 solution, magic angle spinning, cross‐polarization/magic angle spinning, proton spin‐relaxation time in the rotating frame parameter ( T 1 ρ), and dipolar dephasing experiment. Therefore, from the NMR response, poly(vinyl acetate) presents a random monomer sequence distribution along the macromolecule chains, and this provides microdomains with different mobilities. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 2457–2461, 1998