摘要:
Disclosed herein is a method for preparing large soluble graphenes. The method comprises attaching one or more hindering groups to the graphene, which can prevent face-to-face graphene stacking by reducing the effects of inter-graphene attraction. The large graphenes can absorb a wide spectrum of light from UV to near infrared, and are useful in photovoltaic devices and sensitizers in nanocrystalline solar cells.
摘要:
SUBSTITUTED ALKENOIC ACIDS HAVING TWO PHENYL OR LOWER ALKOXYPHENYL GROUPS AND CERTAIN DERIVATIVES HAVE BEEN FOUND TO HAVE EXTROGENIC, E.G., ANTI-FERTILITY PROPERTIES FOR TREATING MENOPAUSAL DISORDERS OR FOR ESTROGENIC REPLACEMENT. TYPICAL COMPOUNDS ARE 2-CARBOXY-5,5-DIPHENYL-4METHYLPENT--4-ENOIC ACIDS, 2-METHYL-4-ETHYL-5,5-DIPHENYL2-CARBOXYPENT-4-ENOIC ACID AND 2,4-DIMETHYL-5-PHENYL5-(4-METHOXY-PHENYL)PENT-4-ENOIC ACID. THE NEW COMPOUNDS ARE FORMULATED AS TABLETS AND CAPSULES FOR ORAL USE AND AS INJECTABLE WITH STERILE WATER,
摘要:
Disclosed is a new method for preparing a donepezil pamoate (1-benzyl-4-[(5,6-dimethoxyindan-2-one)methyl]piperidine pamoate). The donepezil pamoate prepared by using the method has a high purity and a good flowability.
摘要:
Disclosed herein is a three-dimensional coordination complex that includes a plurality of inorganic centers; a plurality of a first bis(bidentate) linker; and a plurality of a second bis(bidentate) linker, where the first and the second bis(bidentate) linkers are have different lengths, and the bidentate binding sites on each linker face in opposite directions on an axis.
摘要:
Novel dicarboxylic acids are described herein that are suitable for the preparation of high-temperature-stable polymers, which are particularly useful in forming suitable dielectrics in microelectronics.
摘要:
Disclosed in certain embodiments is an electron donor for a polyolefin polymerization catalyst. In some embodiments, a solid catalyst component includes a metal component and the electron donor that form a catalyst on a support.
摘要:
New compositions of matter are prepared by reacting ethylene with dehydroabietic acid (or disproportionated rosin) in the presence of palladium (II) acetate to give mixed dimeric dibasic acids.
摘要:
New 9,10-bridged anthracene compounds, such as 9,10bis(carbethoxy)triptycene improve certain properties of polyesters prepared by polymerization or dicarboxylic acid, such as terephthalic acid, and an alkylene glycol, such as ethylene glycol, when incorporated in the polymerization mixture.