Compositions and methods related to the synthesis and application of poly(aryl ether)s are generally described.

Compositions and methods related to the synthesis and application of poly(aryl ether)s are generally described.

Compositions and methods related to the synthesis and application of poly(aryl ether)s are generally described.

The invention pertains to a polyarylether sulfone polymer [polymer (PAES)] incorporating recurring units derived from well-defined amount of bi- or poly-functional monomers having identical functionalities in each of their reactive groups in a chain of units derived from of a monohalo-monohydroxyl arylsulfone monomer comprising groups of formula (A), free from hydroxyl groups which are bound to a phenyl ring comprising an activating SO.sub.2 group in para-position, while comprising an activated aromatic halogen bound to a phenyl ring comprising an activating SO.sub.2 group in para-position, having improved balance between mechanical properties and viscosity in the molten state, and endowed by lower polydispersity indexes with respect to materials of the prior art, to a method for making the same, to polymer compositions comprising the same, and to shaped articles therefrom.

The present invention provides a process for preparing a self-standing catecholamine-based membrane, the process comprising the steps of: (a) cross-linking a catechol derivative with an amine selected from the group consisting of: a known aliphatic amine hydrocarbon of formula (II); and an aromatic amine of formula (IIbis), in a liquid medium, wherein both the catechol and the amine are soluble, at a pH comprised from 6.5 to 10, and under appropriate agitation to create a catecholamine membrane in the air/liquid interface in the absence of any support; and b) isolating the membrane resulting from step (a) from the air/liquid interface. The resulting self-standing catecholamine-based membrane was robust, easy to handle and manipulate, highly flexible and adaptable to any kind of surface without breaking, and adhesive. In addition, the free-standing membrane of the invention shows a Janus character, with an unexpected nanopatterning in the water-contact side which endows the membranes of the invention with a higher roughness surface, something of value to promote cell adhesion.

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Embodiments of the present disclosure provide for a triptycene-based A-B monomer, a method of making a triptycene-based A-B monomer, a triptycene-based ladder polymer, a method of making a triptycene-based ladder polymers, a method of using triptycene-based ladder polymers, a structure incorporating triptycene-based ladder polymers, a method of gas separation, and the like.

Copolymers of PEEK and PEEK/PEK and methods of preparation thereof are provided. The melt temperatures of the PEEK copolymer and PEEK/PEK copolymer compositions are in the range of 350 C. to 420 C. The compositions are based on PEEK monomers biphenol and 4,4-difluorobenzophenone with other PEEK co-monomers such as hydroquinone and PEK co-monomers such as 4-chloro-4-hydroxybenzophenone, 4,4-difluorobenzophenone and 4,4-dihydroxybenzophenone.

Compositions and methods related to the synthesis and application of poly(aryl ether)s are generally described.