polymers that can crystallize are (with the exception of PP) guarantee of obtaining this effect, mainly due to management capacity, which is reflected in crystallinity, the crystals have an affinity for their constituents and form new bonds they manage to anchor forces provide stability to the form temporal.Para analyze the behavior of crystals in this type of polymers used technique WAXS and DSC These techniques help to determine what percentage of the polymer are crystals and how are they organized. This is because the crystallinity decreases as increasing the cross, as the chains lose the ability to accommodate and order is essential to the crystallinity. A second problem
present to crosslink the molecules is the fuse, since an excess of crosslinking adjust the molecule so that leaves to melt (like a heat-stable) and therefore can not obtain a temporary basis.
curing control either electromagnetic waves or peroxide is very important as it increases and decreases TTrans crystallinity, factors in the memory effect.
For semicrystalline biocompatible systems such as poly (ε-caprolactone) and poly (n-butyl acrylate), crosslinked by photopolymerization has been reported that the crystallization behavior is affected by rapid cooling, as in any other semi-crystalline polymer , but the heat of crystallization remains independent of the speed of cooling. The
influence of cross-linking of molecules, rapid cooling and crystallization behavior are unique to each system and impossible to list because the possibilities are almost endless synthesis.
crystallizable polymers such as oligo (ε-caprolactone) segments can be amorphous and poly (n-butyl acrylate) and molecular weight ratio of each determine the behavior of the system in the planning of temporary and recovery permanent form.
Maria Linares 19881179 EES
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