摘要:
A number of new classes of polymers with the potential for electrical conduction are introduced sharing a common theme, having metal atoms in direct contact with each other, bound in one and two-dimensional structures guided by steric, dipole and coordinating ligand factors. These new classes include a new family of metallole polymers in a polycyclic arrangement, for use both standing alone, and with chains of metal atoms coordinated to their electronegative backbone atoms, new polymers of group 13 and 14 metals and metalloids, with substituents connected through an electronegative bonding atom, and a new class of close stacked porphyrin polymers, assembled with short molecular linkers perpendicular to the faces of the porphyrin units. These new materials empower new classes of capacitors, batteries and electrical conductors, even superconductors.
摘要:
The present invention provides high temperature compositions comprising blends of a first polymer, poly(aryl ether ketone phthalazinone)s, and a second polymer, selected from poly(aryl ether ketone)s, poly(aryl ketone)s, poly(ether ether ketone)s, poly(ether ketone ketone)s, or polybenzimidazoles, thermoplastic polyimides, polyetherimides, poly(aryl ether sulfone)s, poly(phenylene sulfide)s, and mixtures thereof. The compositions have improved high temperature characteristics, e.g., improved high temperature load capability and improved high temperature melt processibility.
摘要:
The present invention relates to novel polyamines having secondary amino groups, a process for preparing them, adducts of these polyamines and their uses. The polyamines can be prepared in a simple way from readily available starting materials. They and their adducts have, in particular, a low viscosity and are suitable as constituent of polyurethane and polyurea compositions having excellent processability and high flexibility, and also as constituent of epoxy resin compositions, in particular coatings.
摘要:
A method for the manufacture of a polymer is provided, the method comprising: Providing a first monomer, the first monomer comprising a bicyclic diamine moiety, a first nucleophilic group provided on a carbon atom of an aromatic moiety, and a second nucleophilic group provided on a carbon atom of an aromatic moiety; Providing a bridging compound comprising at least two sites vulnerable to nucleophilic attack; and Contacting the first monomer with the bridging compound. Polymers made by said method and uses of such polymers are also disclosed.
摘要:
An organic copolymer having a plurality of regions along the length of the copolymer backbone the said regions comprising region (iii) as defined below, and at least one of region (i) and/or region (ii), wherein region (i) is a first region for transporting negative charge carriers and having a first bandgap defined by a first LUMO (Lowest Unoccupied Molecular Orbital) level and a first HOMO (Highest Occupied Molecular Orbital) level, wherein the first region comprises a structural unit derived from a first monomer comprising a substituted or unsubstituted aromatic or heteroaromatic group; region (ii) is a second region for transporting positive charge carriers and having a second bandgap defined by a second LUMO level and a second HOMO level, wherein the second region comprises a structural unit derived from a second monomer comprising a substituted or unsubstituted aromatic or heteroaromatic group; and region (iii) is a third region for accepting and combining positive and negative charge carriers to generate light and having a third bandgap defined by a third LUMO level and a third HOMO level, wherein the third region comprises a structural unit derived from a third monomer comprising a triarylamine unit, wherein the triarylamine unit comprises a group having a formula as shown in Formula IV
wherein A and B are the same or different and are substituent groups, and wherein each region comprises one or more monomers and the quantity and arrangement of the monomers in the organic copolymer is selected so that the first, second and third bandgaps are distinct from one another in the copolymer.
摘要:
Die vorliegende Erfindung betrifft neuartige Polyamine mit sekundären Aminogruppen, ein Verfahren zu deren Herstellung, Addukte dieser Polyamine und deren Verwendungen. Die Polyamine lassen sich auf einfache Art und Weise aus leicht zugänglichen Edukten herstellen. Sie und ihre Addukte zeichnen sich insbesondere durch eine niedrige Viskosität aus und sind geeignet als Bestandteil von Polyurethan- und Polyharnstoff-Zusammensetzungen mit ausgezeichneter Verarbeitbarkeit und hoher Flexibilität, sowie als Bestandteil von Epoxidharz-Zusammensetzungen, insbesondere Beschichtungen.
摘要:
A polymer and an organic light-emitting device including the polymer. An example of the polymer is
wherein in Formula 1, Ar 1 is each independently represented by -(Q 1 ) n -, and Q 1 is selected from the group consisting of a substituted or unsubstituted C 5 -C 30 arylene group, a substituted or unsubstituted C 4 -C 30 heteroarylene group, a substituted or unsubstituted C 2 -C 30 alkenylene group, and a group represented by -N(Z 1 )-, and n is an integer from 1 to 10, and n groups of Q 1 in -(Q 1 ) n - is identical to or different from each other, and X 1 and X 2 are each independently selected from the group consisting of -O-, -S-, -N(Z 2 )-, and -C(Z 3 )(Z 4 )-.
摘要:
The invention relates to novel proton-conducting and polyazole conducting polymer membrane based on said polyazoles and to the use thereof as a polymer electrolyte-membrane (PEM) for the production of membrane-electrode-units for PEM-fuel cells. The invention also relates to other moulded bodies based on said polyazoles.
摘要:
The invention relates to a novel polymer film, polymer fibers, and polymers based on polyazoles. Said polymer film can be used for a large variety of purposes and is particularly suitable as a film or membrane for cleaning gas and filtering due to the excellent chemical and thermal properties thereof.
摘要:
The present invention includes a two-layer imageable element, including: a substrate, a top layer including a first thermally imageable composition including (a) a first thermally sensitive supramolecular polymer or (b) a thermally imageable composition free of the first thermally sensitive supramolecular polymer; and disposed between the substrate and the top layer, a bottom layer including a second thermally imageable composition, which includes a second thermally sensitive supramolecular polymer. The present invention also includes a method of producing the imaged element.