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Topic starter 01/04/2022 9:22 pm
What indicators characterize the parameters of the mesh of crosslinked polymers?
02/04/2022 2:12 pm
I think tensile strength test may be a great help in this question. Certainly there must be a relation between amount if crosslinks and material strength
Topic starter 03/04/2022 1:23 pm
You correctly noted that the bond must be present and therefore the breaking strength or cross-link density of the cross-linked polymer depends on the functionality of the cross-linking nodes, which is determined by the number of elastically active chains.
Topic starter 03/04/2022 1:25 pm
Otherwise there would be no durable material.
05/04/2022 8:11 pm
@damiryagudin Crosslinked polymers doesn't melt, right? So we can't test these material for temperature of glass transition, if I'm not mistaken
Topic starter 05/04/2022 9:10 pm
@amalgama That's right, of course we can't. There is no transition to a viscous state in the cross - linked polymer.
Topic starter 05/04/2022 9:18 pm
And what other indicators are used to characterize grids?
06/04/2022 8:11 pm
Maybe density can show the amount of links
08/04/2022 2:06 pm
Actually scanning electron microscopy might give quite informative picture if you were to use an appropriate scale
Topic starter 08/04/2022 9:28 pm
Why not, I think maybe density is one of the indicators
Topic starter 08/04/2022 9:37 pm
Yes, or confocal laser scanning microscopy will completely show a three-dimensional image
Topic starter 18/04/2022 9:26 pm
In what cases is it possible for cross-linked polymers to exhibit highly elastic properties?
21/04/2022 9:07 pm
@damiryagudin Probably if the material is lightly crosslinked and the links are long