Title: Transamidation in melt-mixed aliphatic and aromatic polyamides .1. Determination of the degree of randomness and number-average block length by means of C-13 NMR
Authors: Aerdts, AM ×
Eersels, KLL
Groeninckx, Gabriƫl #
Issue Date: Jan-1996
Publisher: Amer chemical soc
Series Title: Macromolecules vol:29 issue:3 pages:1041-1045
Abstract: The NMR spectra of polyamide 46/polyamide 6I copolymers, which were obtained by reaction in the molten sate, are studied. Using C-13 NMR, a physical blend of polyamide 46 and polyamide 6I and a polyamide 46/polyamide 6I copolymer could be discriminated. Four kinds of diad sequences are observed in the carbonyl resonance signals of the polyamide 46/polyamide 6I copolymer, and an assignment has been made. From the relative peak areas of the diad sequences and using a statistical method for a four-component polyamide system, the degree of transamidation, the degree of randomness, and the number-average block length have been calculated.
ISSN: 0024-9297
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Chemistry - miscellaneous
× corresponding author
# (joint) last author

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