(Thermoplastic elastomers are described in the article elastomer [natural and synthetic rubber].) Like all thermoplastic elastomers, SBS and SIS are less resilient than permanently interlinked molecular solids, and they do not recover as efficiently from deformation.
Unless hydrogen bonds are present (in which case molecular solids resemble ionic solids in brittleness), molecular solids are generally soft and have low melting points because the bonds between the molecules are easily overcome.
The Dutch physicist Johannes D. van der Waals first proposed the force that binds molecular solids.
Rhenium heptafluoride, the only characterized metal heptafluoride, is a low-melting molecular solid with pentagonal bipyramidal molecular geometry.
Yesterday morning it was frozen solid, like plastic.
Re-hydration with PBS enabled molecular assembly into an elastic solid-like hydrogel.
Hydrogels are unique supramolecular solid-like assemblies composed mainly of water molecules that are held by molecular networks.
Local molecular conformation and crystallinity in these gels were characterized by Raman spectroscopy, which shows that the transition from melt-like to solid-like rheological behavior (physical gelation) in LLDPE occurs at a very low overall crystallinity of less than 5%.
The composite electrolytes are solid-like gels.
The polymer electrolyte forms self-supporting, solid-like films.
