Temperature variable FT - IR spectroscopy was applied to study nylon 6 - la
nthanide salt systems. Introduction lanthanide ion into the nylon systems c
ause the following effects: 1) In the melting process, the amide band A in
nylon - lanthanide salt systems exhibits red - shift rather than blue shift
. 2) Significant variations on amide bands I and II are observed. Further s
tudying on nylon lanthanide salt systems may be helpful in the development
of lanthanide - polymer composite materials with high performance.