Abstract:
A carbon nanotube (CNT)/polymer film or CNT/polymer composite structure containing CNTs, arranged uniformly in a randomly oriented distribution in the polymer matrix. The CNT sheet is manufactured by applying a highly dispersed CNT-polymer-solvent suspension, mixed using ultrasonication, over a carrier, using a coating process, and drying to form the CNT/polymer film. The CNT film is useful in making CNT composite laminates and structures having utility for electro-thermal heating, deicing, shielding for wire & cable, thermal interface pads, energy storage, heat dissipation, conductive composites, antennas, reflectors, and electromagnetic environmental effects (E3), such as lightning strike protection, EMP protection, directed energy protection, and EMI shielding in a variety of form factors such as sheets, roll stocks, and tapes.
Abstract:
The present invention relates to new condensation resins of urea, formaldehyde, and CH-acidic aldehydes, to methods for preparing them, and to their use.
Abstract:
Polyhemiaminal (PHA) and polyhexahydrotriazine (PHT) materials are modified by 1,4 conjugate addition chemical reactions to produce a variety of molecular architectures comprising pendant groups and bridging segments. The materials are formed by a method that includes heating a mixture comprising solvent(s), paraformaldehyde, aromatic amine groups, aliphatic amine Michael donors, and Michael acceptors, such as acrylates. The reaction mixtures may be used to prepare polymer pre-impregnated materials and composites containing PHT matrix resin.
Abstract:
Provided is a charge-transporting varnish which includes a charge-transporting material including fluorine atoms, a charge-transporting material not including fluorine atoms, a dopant material comprising heteropoly acid, and an organic solvent, said charge-transporting material including fluorine atoms being a polymer of weight-average 1,000 to 200,000 molecular weight obtained by condensing a triarylamine compound, an aryl aldehyde compound including fluorine atoms, and a fluorine derivative having a carbonyl group, and said charge-transporting material not including fluorine atoms being an oligoaniline compound. The charge-transporting varnish provides a thin film which, even in a case of being used as a single layer in contact with and in between an anode and a luminescent layer, is capable of achieving an organic EL element having superior luminance characteristics and durability.
Abstract:
The present invention relates to new condensation resins of urea, formaldehyde, and CH-acidic aldehydes, to methods for preparing them, and to their use.
Abstract:
A star-blocked polymeric material based on polyethylene glycol and having a uniform distribution of both hydroxy and amine functional groups throughout the polymeric material is described. The polymeric material, known as HYDRA (hydroxy and amine functionalised resin), is prepared by forming a polyimine compound by reacting an aldehyde and an amine. The polyimine is then reacted with a reducing agent to form a star-blocked polymeric material. HYDRA resins can be used, for example, as solid supports for organic synthesis, for enzymatic assays, for immobilization of biomolecules, for controlled release of drugs, and for chromatographic separations.