The invention provides epoxy and oxetane compositions including the novel acyloxy and N-acyl curing agents described herein. Use of invention curing agents result in cured adhesive compositions with remarkably increased adhesion and reduced hydrophilicity when compared to resins cured with other types of curing agents. Furthermore, the curatives of this invention do not interfere with free-radical cure and are thus suited for use in hybrid cure thermoset compositions.
Synthesis and Spectroscopic and Electrochemical Properties of an Axially Symmetric Fullerene–Porphyrin Dyad with a Rigid Pyrrolo[3,4-<i>c</i>]pyrrole Spacer
作者:Alexander S. Konev、Alexander F. Khlebnikov、Tamara G. Nikiforova、Alexander A. Virtsev、Holm Frauendorf
DOI:10.1021/jo302763a
日期:2013.3.15
A new approach to porphyrinofullerene donor–acceptor dyads, based on consecutive 1,3-dipolar cycloaddition of azomethine ylides, generated from bis-aziridinedicarboxylate, to C60 and to porphyrin with a maleimidophenyl substituent, was developed. A synthesis of the axially symmetric porphyrin–fullerene–C60 ensemble 5 with a novel rigid pyrrolo[3,4-c]pyrrolic linker was realized. Theoretical, electrochemical
一种新的卟啉富勒烯供体-受体二联体的新方法,是基于由双氮丙啶二羧酸酯产生的甲亚胺基团连续1,3-偶极环加成到C 60和带有马来酰亚胺基苯基取代基的卟啉上的。实现了具有新型刚性吡咯并[3,4- c ]吡咯连接体的轴对称卟啉-富勒烯-C 60系综5的合成。化合物5的理论,电化学和光谱研究表明,它能够形成电荷分离态。
Synthesis of New Porphyrin-Fullerene Dyads Capable of Forming Charge-Separated States on a Microsecond Lifetime Scale
作者:Alexander S. Konev、Alexander F. Khlebnikov、Pavel I. Prolubnikov、Andrey S. Mereshchenko、Alexey V. Povolotskiy、Oleg V. Levin、Andreas Hirsch
DOI:10.1002/chem.201404435
日期:2015.1.12
A series of covalently linked axially symmetric porphyrin–fullerenedyads with a rigid pyrrolo[3,4‐c]pyrrolic linker enabling a fixed and orthogonal arrangement of the chromophores has been synthesized and studied by means of transient absorption spectroscopy and cyclic voltammetry. The lifetime of the charge‐separated state has been found to depend on the substituents on the porphyrin core, reaching
借助瞬态吸收光谱和循环伏安法研究了一系列带有刚性吡咯并[3,4- c ]吡咯连接基的共价连接的轴向对称卟啉-富勒烯二联体,该连接基使得发色团得以固定和正交排列。已发现电荷分离态的寿命取决于卟啉核心上的取代基,对于具有中观-(p -MeOC 6 H 4)的物种,其最长可达4μs。)取代基。在DFT和TD-DFT B3LYP(6-31G(d))的理论水平上计算了模型化合物的基态和激发电子态,并就取代基对电荷分离态稳定的影响进行了分析。为了解释观察到的依赖性,在卟啉-富勒烯系中进行了研究。
COMPOSITION FOR PRODUCING BOARD AND PRINTED CIRCUIT BOARD USING THE SAME
申请人:Cho Chung Kun
公开号:US20090117348A1
公开(公告)日:2009-05-07
Compositions for producing a board and a printed circuit board produced using the composition are provided. The compositions can be used for the production of a variety of printed circuit boards.
提供用于生产电路板和使用该组合物生产的印刷电路板的组合物。该组合物可用于生产各种印刷电路板。
CURATIVES FOR EPOXY COMPOSITIONS
申请人:Dershem Stephen M.
公开号:US20100249276A1
公开(公告)日:2010-09-30
The invention provides epoxy and oxetane compositions including the novel acyloxy and N-acyl curing agents described herein. Use of invention curing agents result in cured adhesive compositions with remarkably increased adhesion and reduced hydrophilicity when compared to resins cured with other types of curing agents. Furthermore, the curatives of this invention do not interfere with free-radical cure and are thus suited for use in hybrid cure thermoset compositions.