摘要:
Die vorliegende Erfindung stellt oxidationsstabile Oligothiophene der Formel (I), mit einem oder zwei terminalen Substituenten bereit, die jeweils über ein quartäres Kohlenstoffatom an die Oligothiophenkette gebunden sind. Aufgrund ihrer charakteristischen Absorptions- und Fluoreszenzeigensehaften, wie einem großen Stokes-Shift, und aufgrund ihrer gut steuerbaren Löslichkeit eignen sich die erfindungsgemäßen Verbindungen insbesondere zur Verwendung in optischen Signalübertragungssystemen, die hohe Datenübertragungsgeschwindigkeiten erlauben, und/oder als Färbemittel.
摘要:
Presently described are curable compositions comprising a mixture of at least one (e.g. free-radically) polymerizable ionic liquid and at least one other ethylenically unsaturated monomer, oligomer, or polymer. The polymerizable ionic liquid is characterized as having an air to nitrogen curing exotherm ratio of at least 0.70. Also described are articles and methods of making articles from such curable compositions. A monofunctional polymerizable ionic liquid is also described comprising a non- polymerizable substituted imidazolium cationic group and a polymerizable sulfonate anion.
摘要:
The present invention provides methylene beta-ketoester monomers, methods for producing the same, and compositions and products formed therefrom. In the method for producing the methylene beta-ketoesters of the invention, a beta-ketoester is reacted with a source of formaldehyde in a modified Knoevenagel reaction optionally in the presence of an acidic or basic catalyst, and optionally in the presence of an acidic or non-acidic solvent, to form reaction complex. The reaction complex may be an oligomeric complex. The reaction complex is subjected to further processing, which may be vaporization by contact with an energy transfer means in order to isolate the beta-ketoester monomer. The present invention further compositions and products formed from methylene beta-ketoester monomers of the invention, including monomer-based products ( e.g ., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products ( e.g ., fibers, films, sheets, medical polymers, composite polymers and surfactants).
摘要:
The present invention provides methylene beta-diketone monomers, methods for producing the same, and compositions and products formed therefrom. In the method for producing the methylene beta-diketones of the invention, a beta-diketone is reacted with a source of formaldehyde in a modified Knoevenagel reaction optionally in the presence of an acidic or basic catalyst, and optionally in the presence of an acidic or non-acidic solvent, to form reaction complex. The reaction complex may be an oligomeric complex. The reaction complex is subjected to further processing, which may be vaporization by contact with an energy transfer means in order to isolate the beta-diketone monomer. The present invention further compositions and products formed from methylene beta-diketone monomers of the invention, including monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).
摘要:
The present invention relates to a method for the preparation of a novel hybrid electrochromic coating material with superior performance in terms of transparency, electrochromic contrast, colouration efficiency, and adhesion, for a use in electrochromic devices for applications where a high transparency is required in the bleached state.