Patent classifications
C08G73/06
Methods for sol-gel polymerization in absence of solvent and creation of tunable carbon structure from same
The present application is directed to methods for solvent-free preparation of polymers and their subsequent processing into activated carbon materials. These methods unexpectedly demonstrate ability to tune pore structure in the polymer gel and carbon produced there from, while also providing distinct advantages over the current art.
Electroactive polymer solution comprising conjugated heteroaromatic polymer, electroactive coating comprising the same, and objects comprising electroactive coating
A composition for forming an electroactive coating includes an acid as a polymerization catalyst, at least one functional component, and at least one compound of formula (1) as a monomer: ##STR00001##
wherein X is selected from S, O, Se, Te, PR.sup.2 and NR.sup.2, Y is hydrogen (H) or a precursor of a good leaving group Y.sup.− whose conjugate acid (HY) has a pK.sub.a of less than 45, Z is hydrogen (H), silyl, or a good leaving group whose conjugate acid (HY) has a pK.sub.a of less than 45, b is 0, 1 or 2, each R.sup.1 is a substituent, and the at least one compound of formula (1) includes at least one compound of formula (1) with Z═H and Y≠H.
Sulfurized polybenzoxazine that can be used for coating metal and for the bonding of same to rubber
A polybenzoxazine sulfide has repeating units including at least one unit corresponding to formula (I) or (II): ##STR00001##
in which the two oxazine rings are connected together via a central aromatic group, the benzene ring of which bears one, two, three or four groups of formula —S.sub.x—R in which “x” is an integer from 1 to 8 and R represents hydrogen or a hydrocarbon-based group including 1 to 10 carbon atoms and optionally a heteroatom chosen from O, S, N and P. Such a polybenzoxazine can be used as an adhesive layer on metal, in particular for the adhesive bonding of a metallic substrate, in particular made of carbon steel, to rubber.
Mechanochemical based synthesis of perfluoropyridine monomers for polymerization
The present invention relates to a mechanochemical based synthesis of perfluoropyridine monomers, polymers made using such monomers and methods of making and using articles comprising such polymers. Such perfluoropyridine monomers are easily chemically tuned have the strength needed for high temperature applications and the flexibility needed for low temperature applications. In addition, to the aforementioned monomers, a mechanochemical based synthesis for such perfluoropyridine monomers is provided. All of the aforementioned performance application advantages are also found in polymers comprising Applicants' perfluoropyridine monomers.
Mechanochemical Based Synthesis of Perfluoropyridine Monomers for Polymerization
The present invention relates to a mechanochemical based synthesis of perfluoropyridine monomers, polymers made using such monomers and methods of making and using articles comprising such polymers. Such perfluoropyridine monomers are easily chemically tuned have the strength needed for high temperature applications and the flexibility needed for low temperature applications. In addition, to the aforementioned monomers, a mechanochemical based synthesis for such perfluoropyridine monomers is provided. All of the aforementioned performance application advantages are also found in polymers comprising Applicants' perfluoropyridine monomers.
Electrically conducting poly(pyrazoles)
This disclosure concerns electrically conducting poly(pyrazoles). The concept of oligomerizing and polymerizing substituted aminopyrazole derivatives combined with a monomer activation procedure involving base-mediated conversion of the protonated pyrazole ring nitrogen to amine salt was developed. This disclosure concerns the specific chemistries needed for the synthesis of a pyrazole monomer used in the polymer synthesis. The procedure used for blending the novel polypyrazoles with other compounds needed for construction of solar cells for testing was developed. This disclosure concerns the concept of using these types of heteroatom-rich, electron-deficient oligomers or polymers as n-dopable or p-dopable electron acceptors in photovoltaic cells. This disclosure concerns synthesizing the starting monomer compounds and polypyrazoles.
Renewable highly biobased polybenzoxazine thermosets for composite applications
Benzoxazine compounds, methods of making them, polymers made therefrom and methods of polymerizing the benzoxazines. These renewable benzoxazine monomers and polymers that utilize the variety of building blocks found in renewable plant biomass, demonstrate excellent processability and large temperature windows for processing of resin systems.
Semicrystalline poly(aryl ether ketone) copolymers
Compositions and methods for semicrystalline poly(aryl ether ketone) copolymers incorporating 2-benzimidazolinone and hydroquinone as comonomer units with 4,4′-dihalobenzophenone, and compositions and methods for semicrystalline poly(aryl ether ketone) copolymers incorporating 2-benzimidazolinone and hydroquinone as comonomer units with 1,4-bis(4-dihalobenzoyl)benzene are described herein. The copolymers have advantageous properties, particularly in terms of their glass transition temperatures (T.sub.g), crystallization temperatures from melt (T.sub.c), melting temperatures (T.sub.m), crystallinity and chemical resistance. The copolymers are suitable for manufacturing high temperature and chemical resistance molded systems and other articles of manufacture via injection molding, extrusion, compression molding, thermoforming and additive manufacturing.
POLYMERS OF INTRINSIC MICROPOROSITY
A polymer of intrinsic microporosity having a repeating subunit including both a spirobisindane imide moiety and an amido (lactam) moiety.
##STR00001##
Quinolines, Polyquinolines, Molecular Segments of Fullerenes and Graphene Nanoribbons, and Graphene Nanoribbons and Methods of Their Synthesis
Quinolines, polyquinolines, polybenzoquinolines, molecular segments of fullerenes and graphene nanoribbons, and graphene nanoribbons and processes for producing such materials are provided. The processes utilize a form of an aza-Diels-Alder (Povarov) reaction to first form quinolines and/or polyquinolines. In some such embodiments polyquinolines thus produced are used to form graphene nanoribbon precursors, and molecular segments and graphene nanoribbons. In many such embodiments the graphene nanoribbon precursors are formed from polybenzoquinolines.