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Soft materials are materials that can be easily deformed by thermal stresses or thermal fluctuations at about room temperature. Soft materials include liquids, polymers, foams, gels, colloids, granular materials, as well as most soft biological materials.
Ageing is a non-linear, irreversible process that defines many properties of glassy materials. Now, it is shown that the so-called material-time formalism can describe ageing in terms of equilibrium-like properties.
Starting from simple building blocks with specific molecular packing geometries, here, the authors synthesized structurally complex covalent organic framework COF-305 with nine different stereoisomers of its constituents showing specific sequences on topologically equivalent sites.
Exploring and exploiting electric dipole arrangements analogously to what is possible with magnetic spin textures is an emerging prospect. Now a spontaneous toroidal polar topology is observed in ferroelectric liquid crystals.
Mask-free multi-photon lithography allows the straightforward fabrication of nanostructures, but high precision and good resolution can be challenging to achieve. Here, the authors report a combination of photo-inhibition and chemical quenchers for improved lithography performance.
Sustainable materials with circularly polarized room-temperature phosphorescence are desirable but challenging to design. Here, the authors report the development of thin films, based on cellulose nanocrystals and lignosulfonate, with circularly polarised room temperature phosphorescence.
Boroxines, resulting from the reversible dehydration of boronic acids, have been incorporated as structural units into functional materials and molecular assemblies, but their applicability is restricted to non-aqueous environments owing to their inherent water instability. Now, a boroxine structure spontaneously formed from the 2-hydroxyphenylboronic acid dimer enables water-compatible dynamic B–O covalent bonds, expanding their future applicability.
Ageing is a non-linear, irreversible process that defines many properties of glassy materials. Now, it is shown that the so-called material-time formalism can describe ageing in terms of equilibrium-like properties.
Considering responsive materials as transient collective assemblies rather than individual shape-changing objects allows for emergent functionalities that cannot be derived from the properties of single objects but are driven by interactions between them.
Early detection of electrical degradation can be identified by colour change due to the chromogenic response of blended molecules in dielectric polymers.