A compound having the following formula:

##STR00001##

which can also be embedded into a conjugated oligomeric of polymeric backbone, is proposed for optical and electro optical applications.

The present invention relates to compositions comprising at least one polymer which contains triarylamine repeating units, and at least one metal complex, to methods for the production thereof, and the use thereof in electronic devices, especially in organic electroluminescent devices, so-called OLEDs (OLED=Organic Light Emitting Diode). The present invention also relates to organic electroluminescent devices which contain said compositions

Provided are a novel polymer, a method of preparing the same, and an organic semiconductor device including the same. According to the present invention, the fluorine content-controlled polymer is employed in an organic active layer, thereby providing an organic optoelectric device representing improved power conversion efficiency (PCE).

A material for forming an organic film contains a polymer having a repeating unit shown by the following general formula (1), and an organic solvent, where AR1 and AR2 each represent a benzene ring or a naphthalene ring which optionally have a substituent; W.sub.1 represents a divalent organic group having 2 to 20 carbon atoms and no aromatic ring, and a methylene group constituting the organic group is optionally substituted with an oxygen atom or a carbonyl group; and W.sub.2 represents a divalent organic group having 6 to 80 carbon atoms and at least one or more aromatic rings. This invention provides: an organic film material being excellent in film formability and enabling high etching resistance and excellent twisting resistance and filling property; a patterning process using this material; and a polymer suitable for such an organic film material. ##STR00001##

The invention discloses a humidity sensor based on squaraine polymer and the preparation method and use thereof. Specifically, the humidity sensor disclosed by the invention comprises a coating material and an interdigital electrode, wherein the coating material is a squaraine polymer as shown in formula I, n is an integer of 40-50, the coating material is brushed on the interdigital electrode, and the thickness is 100-400 microns. The humidity sensor disclosed by the invention has the advantages that the preparation is convenient, and the operation is simple; the response time is short, and the response for humidity change is higher than that of common metallic oxides; the recovery time is short, and the device performance is stable; the humidity hysteresis of the device is high under high humidity environment.

A polymer includes a first repeating unit and a second repeating unit forming a main chain, the first repeating unit including at least one first conjugated system, and the second repeating unit including at least one second conjugated system and a multiple hydrogen bonding moiety represented by Chemical Formula 1.

An organic photovoltaic device comprising a polymer: ##STR00001##
and an acceptor. In this organic photovoltaic device, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are independently selected from the group consisting of: a halogen, a substituted alkyl, an unsubstituted alkyl, a substituted aryl, an unsubstituted aryl, a substituted heteroaryl and an unsubstituted heteroaryl.

A method for producing a fluorine-containing polymer includes subjecting at least one kind of fluorine-containing cycloolefin compound selected from the group consisting of a fluorine-containing cycloolefin compound represented by the following formula (41) and a fluorine-containing cycloolefin compound represented by the following formula (42) to ring-opening metathesis polymerization in the presence of a metal-carbene complex compound (10) having an olefin metathesis reaction activity.

##STR00001##

A method for producing polyether ketone ketone at a high yield is disclosed. According to the method, a catalyst injection rate is controlled during production to suppress scale formation, whereby the yield can be improved. A polyether ketone ketone produced by the method is disclosed. The method makes it possible to maintain an intrinsic viscosity (IV) of the polymer without a significant change and adjust a particle size of polyether ketone ketone by preventing an aggregation between resin particles, thereby suppressing scale formation.

The present invention relates to a resin composition that comprises an acetoacetate ester compound with at least two acetoacetate ester functional groups, an acrylate compound with at least two acrylate functional groups, and a tertiary amine curing catalyst. This resin composition acts as an isocyanate-free binder that is less toxic to the environment. The invention further discloses a method for preparation fiber reinforced parts comprising fibers and said resin composition as well as a method for the preparation of foundry molds for the casting industry, which is based on said binder.