[EN] METHOD OF PREPARING POLY(ALKYLENE CARBONATE) VIA COPOLYMERIZATION OF CARBON DIOXIDE/EPOXIDE IN THE PRESENCE OF NOVEL COMPLEX<br/>[FR] PROCÉDÉ DE PRÉPARATION DE POLY(CARBONATE D'ALKYLÈNE) PAR COPOLYMÉRISATION DE DIOXYDE DE CARBONE ET D'ÉPOXYDE EN PRÉSENCE D'UN NOUVEAU COMPLEXE
申请人:SK INNOVATION CO LTD
公开号:WO2014148825A1
公开(公告)日:2014-09-25
Provided is a method of preparing poly(alkylene carbonate) using a molecular weight regulator in a process of preparing a copolymer of carbon dioxide/epoxide using a novel complex synthesized from salen-type ligand including a quaternary ammonium salt as a catalyst. According to the present invention, even though the molecular weight regulator is used, an activity of the catalyst may be stably maintained, whereby the low molecular weight of poly(alkylene carbonate) having a desirable level may be effectively provided. In addition, it is expected that since the novel complex as the catalyst of the present invention has a simple structure as compared to the existing copolymerization catalyst, due to the economical preparation cost thereof, the novel complex may be effectively applied to a large-scale commercial process.
Microwave-assisted synthesis of a new series of resorcin[4]arene cavitand-capped porphyrin capsules
作者:Michael G. McKay、Thandanani Cwele、Holger B. Friedrich、Glenn E. M. Maguire
DOI:10.1039/b907547j
日期:——
receptors are fundamental to the modeling of biological host–guest interactions such as those characteristic of enzymatic processes. Among the more versatile and effective synthetic receptors are the hemicarcerand-type hosts. Herein we report the synthesis of six novel resorcin[4]arene cavitand-capped porphyrin capsules, in a new series of molecular capsules modeled on the classical hemicarcerands initially
USE OF A CHARGED MASS LABELING SYSTEM FOR THE DETECTION OF TARGET ANALYTES
申请人:Purdue Research Foundation
公开号:EP4012416A1
公开(公告)日:2022-06-15
The present invention provides a method for detecting a target analyte in a sample, the method comprising:
introducing a charged mass label composition to a sample comprising a target analyte, wherein the charged mass label composition comprises an affinity reagent; and a mass label precursor bound to the affinity reagent, wherein the mass label precursor comprises a label binding unit and a mass label, the label binding unit reversibly binding the mass label to the affinity reagent, and wherein the mass label comprises a charge unit and a mass label unit having a pre-defined mass-to-charge-value in a mass spectrum;
incubating the sample and the charged mass label composition so that the charged mass label composition binds the target analyte via an interaction between the affinity reagent of the charged mass label composition and the target analyte;
releasing the mass label from the affinity reagent by breaking one or more bonds of the label binding unit;
ionizing the mass label; and
detecting the ionized mass label and/or fragments thereof in a mass spectrometer, thereby detecting the target analyte in the sample.
Method of preparing poly(alkylene carbonate) via copolymerization of carbon dioxide/epoxide in the presence of novel complex
申请人:SK Innovation Co., Ltd.
公开号:US10723837B2
公开(公告)日:2020-07-28
Provided is a method of preparing poly(alkylene carbonate) using a molecular weight regulator in a process of preparing a copolymer of carbon dioxide/epoxide using a novel complex synthesized from salen-type ligand including a quaternary ammonium salt as a catalyst. According to the present invention, even though the molecular weight regulator is used, an activity of the catalyst may be stably maintained, whereby the low molecular weight of poly(alkylene carbonate) having a desirable level may be effectively provided. In addition, it is expected that since the novel complex as the catalyst of the present invention has a simple structure as compared to the existing copolymerization catalyst, due to the economical preparation cost thereof, the novel complex may be effectively applied to a large-scale commercial process.
The invention generally relates to charged mass label compositions and methods of use thereof for detecting a target analyte in a sample. In certain aspects, the invention provides a charged mass label composition including an affinity reagent, and a mass label precursor bound to the affinity reagent. The mass label precursor includes a label binding unit and a mass label. The label binding unit reversibly binds the mass label to the affinity reagent. The mass label includes a charge unit and a mass label unit having a pre-defined mass-to-charge-value in a mass spectrum.