This study shows the interest of elaborating polylactide/halloysite nanocomposites by means of water assisted extrusion (WAE). Besides, WAE gives access to materials with improved fire properties and prevents molecular degradation.
We
report on mechanically linked polymers containing a single catenane
in the middle of the chain. These polymers were synthesized by a simple
procedure consisting in “clicking” polymer chains onto
a functionalized palladium-templated [2]catenane, allowing the preparation
of a variety of mechanically linked polymers. The flexibility of the
catenane junction was modulated by removing the Pd ion from the catenane
to unlock the macrocycles and increase their mobility. We show that
this mobility change has a strong impact on the solid-state properties
of the polymers. This is illustrated by studying the glass transition
temperature of polystyrene-based polymers and the crystallization
behavior of poly(ethylene oxide)-based polymers. Our study proves
that a change of flexibility of a single catenane inserted into a
polymer chain drastically influences the polymer behavior in the solid
state.
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