Conclusions
This study demonstrates that dynamic FT-IR spectroscopy
is a useful tool for studying polymer dynamics in
the wood wall. It has also been shown that the cellulose
and the hemicelluloses can be spectrally separated, which is
necessary for the interpretation of dynamic spectra.
The measurements parallel to direction have
revealed a difference in mechanical behavior between the
two main hemicelluloses in spruce wood, where the glucomannan
has a closer association to cellulose than the xylan.
This indicates different purposes for the two hemicelluloses
in the wood