摘要:
Disclosed is a polymer having a chemical formula: wherein x is 10%˜90%, y is 10% to 90%, and x+y=100%; R1 is —H, —CH3, —CH2CH3, —OCH3, —O(CH2)nCH3, wherein n=1˜12, —NH2, —N(CH3)2, N(CH2)nCH3, wherein n=1˜12, —Br, —Cl, —OH, —SO3Na, —SO3H, or —SO2Cl; R2 is —H, —COOH, —COOCH3, —COO(CH2)nCH3, wherein n=1˜12, —SO3Na, —SO3H, —SO2Cl, —OH, —CONH2, —CON(CH3)2, —CON(CH2)n(CH3)2, wherein n=1˜12, —Br, or —Cl; and R3 is —SO3Na, —SO3H, —PO3H, —SO2Cl. —OH, —H, —COOH, —COOCH3, —COO(CH2)nCH3, wherein n=1˜12, —CONH2, —CON(CH3)2, —CON(CH2)n(CH3)2, wherein n=1˜12, —Br, or —Cl.
摘要:
Higher diamondoid derivatives capable of taking part in polymerization reactions are disclosed as well as intermediates to these derivatives, polymers formed from these derivatives and methods for preparing the polymers.
摘要:
Disclosed are compositions comprising antioxidants and stabilizers, such as, acid scavengers or organic phosphorus stabilizers, and optionally further comprising co-stabilizers. The disclosed compositions are useful as stabilizers for polyolefins and other polymeric materials. The disclosed compositions and methods generally provide longer shelf lifes and better oxidative resistance to materials than currently available antioxidants.
摘要:
Sterically hindered phenol and phosphite based compounds, represented by formula I: and their use as antioxidants in a wide range of materials including, but not limited to, food, plastics, elastomers, composites and petroleum based products is disclosed herein.
摘要:
The present invention relates to heterocyclic radicals or diradicals, the dimers, oligomers, polymers, dispiro compounds and polycycles thereof, to the use thereof, to organic semiconductive materials and to electronic and optoelectronic components.
摘要:
A method of manufacturing an electroluminescent device which has an anode and a cathode and arranged between the anode and the cathode a light emissive layer, also includes an anode protection layer which protects the anode against the effects of converting a precursor polymer to a semiconductive conjugated polymer which constitutes the light emissive layer. This has been found to increase the brightness and half-life of devices.
摘要:
The present invention relates to a class of luminescent and conductive polymer compositions having chromophores, and particularly solid films of these compositions exhibiting increased luminescent lifetimes, quantum yields and amplified emissions. These desirable properties can be provided through polymers having rigid groups designed to prevent polymer reorganization, aggregation or π-stacking upon solidification. These polymers can also display an unusually high stability with respect to solvent and heat exposures. The invention also relates to a sensor and a method for sensing an analyte through the luminescent and conductive properties of these polymers. Analytes can be sensed by activation of a chromophore at a polymer surface. Analytes include aromatics, phosphate ester groups and in particular explosives and chemical warfare agents in a gaseous state. The present invention also relates to devices and methods for amplifying emissions by incorporating a polymer having an energy migration pathway and/or providing the polymer as a block co-polymer or as a multi-layer.
摘要:
Higher diamondoid derivatives capable of taking part in polymerization reactions are disclosed as well as intermediates to these derivatives, polymers formed from these derivatives and methods for preparing the polymers.
摘要:
Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.
摘要:
The present invention relates to a class of luminescent and conductive polymer compositions having chromophores, and particularly solid films of these compositions exhibiting increased luminescent lifetimes, quantum yields and amplified emissions. These desirable properties can be provided through polymers having rigid groups designed to prevent polymer reorganization, aggregation or π-stacking upon solidification. These polymers can also display an unusually high stability with respect to solvent and heat exposures. The invention also relates to a sensor and a method for sensing an analyte through the luminescent and conductive properties of these polymers. Analytes can be sensed by activation of a chromophore at a polymer surface. Analytes include aromatics, phosphate ester groups and in particular explosives and chemical warfare agents in a gaseous state. The present invention also relates to devices and methods for amplifying emissions by incorporating a polymer having an energy migration pathway and/or providing the polymer as a block co-polymer or as a multi-layer.