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Solution NMR study of the post‐polymerization crosslinking agent N,N ′‐(2‐propyloximino)‐4,4′‐methylenebis(phenylcarbamate). I
Author(s) -
Bassett Walter H.,
Sun Tong,
Porter Roger S.
Publication year - 1984
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.1984.070290706
Subject(s) - phenylisocyanate , polymerization , substituent , proton nmr , adduct , carbon 13 nmr , nuclear magnetic resonance spectroscopy , polymer , chemistry , acetone , chemical shift , epichlorohydrin , polymer chemistry , materials science , organic chemistry
Because of its possible use as a blocked “post‐polymerization crosslinking agent” for polymers containing labile hydrogen, the structure of the acetone oxime adduct of 4,4′‐methylenebis‐(phenylisocyanate) has been determined. 13 C and 1 H nuclear magnetic resonance (NMR) spectroscopy has identified this product to be N , N ′‐(2‐propyloximino)‐4,4′‐methylenebis(phenylcarbamate). Chemical shift assignments were based on information obtained by proton decoupled, off‐resonance decoupled, and gated decoupled 13 C‐NMR, proton‐NMR, and semiemperical substituent chemical shift (SCS) parameters.