Acid compounds of formula (I) wherein Y is selected from O and NH, wherein X is selected from CO and CH2, and wherein R2 is a branched saturated or unsaturated hydrocarbon moiety selected from C7-C15, that are useful as antibacterial or antifungal compounds in consumer products.
Pyrrolidino [60] and [70]fullerene homo- and heterodimers as electron acceptors for OPV
作者:Sule Erten-Ela、Carmen Villegas、Juan Luis Delgado、Nazario Martín
DOI:10.1039/c4nj01709a
日期:——
New homo- and heterodimers involving [60] and [70]fullerenes have been synthesized and used to prepare organic solar cells.
新的包括[60]和[70]富勒烯的同型和异型二聚体已被合成并用于制备有机太阳能电池。
Härtbare Polyesterformmassen
申请人:BASF Aktiengesellschaft
公开号:EP0271816A2
公开(公告)日:1988-06-22
Härtbare Polyesterformmassen, enthaltend ein Gemisch aus
A. einem ethylenisch ungesättigten Polyester oder einem endständigen ungesättigten Vinylester,
B. copolymerisierbaren Monomeren,
C. faserförmigen Verstärkungsmitteln
D. pulverförmigen Füllstoffen,
E. organischen Radikalinitiatoren,
F. einem Viskositätserniedriger,
G. üblichen Zusatzstoffen.
Der Viskositätserniedriger ist ein tertiäres oder sekundäres Amin, das eine langkettige Alkyl- oder Acylgruppe sowie eine Carboxylgruppe trägt.
可固化聚酯模塑组合物,含有以下混合物
A. 乙烯基不饱和聚酯或末端不饱和乙烯基酯、
B. 可共聚单体
C. 纤维状增强剂
D. 粉末状填料
有机自由基引发剂
F. 降粘剂
G. 传统添加剂。
降粘剂是一种带有长链烷基或酰基和羧基的叔胺或仲胺。
Efficient post-polymerization functionalization of conducting poly(3,4-ethylenedioxythiophene) (PEDOT) via ‘click’-reaction
The possibility to functionalize polymers after a successful polymerization process is often an important challenge in macromolecular science. Herein, modified electrodes based on azide-containing potentio-dynamically electropolymerized PEDOT derivatives are reported. This reactive coatings are subsequently modified under mild heterogeneous conditions by copper-catalyzed Huisgen 1,3-dipolar cycloaddition with terminal alkynes, the so-called 'click'-reaction. A series of terminal alkynes have been successfully used for the facile immobilization of neutral, electron-accepting and electron-donating units to the conducting PEDOT with high conversion efficiencies showing the broad scope of the strategy. The route is devoid of the limitations generated by the various steric and electronic impacts of the substituents when attached to the monomer before polymerization. (C) 2010 Elsevier Ltd. All rights reserved.
Donor−Acceptor Conjugates of Lanthanum Endohedral Metallofullerene and π-Extended Tetrathiafulvalene
Stable donor acceptor conjugates (2, 3) involving an endohedral metallofullerene, La(2) @ l(h)-C(80), and pi-extended tetrathiafulvalene (exTTF) have been synthesized by highly regioselective 1,3-dipolar cycloadditions of exTTF-containing azomethine ylides to the endofullerene, yielding exclusively [5,6] metallofulleropyrrolidines with C(1) symmetry in high yields (68-77%). The cyclic voltammograms (CVs) of the conjugates reveal the redox active character of the system due to the presence of both donor and acceptor groups, that is, exTTF and La(2) @ l(h)-C(80), respectively. Furthermore, the electrochemically reversible character of the endofullerene confirms the presence of the [5,6] adduct. Despite the relatively close proximity between the exTTF and the endohedral metallofullerene (EMF), only a weak electronic interaction was observed in the ground state, as evidenced by absorption spectroscopy and CV measurements of 2 and 3. On the other hand, in the excited state the fast formation of a radical ion-pair state (i.e., 6.0 x 10(10) s(-1)), that is, the reduction of the electron accepting La(2)@C(80) and the oxidation of exTTF, evolves with lifetimes as long as several ns (3.0 x 10(8) s(-1)) in toluene. Transient absorption spectroscopy experiments confirmed these observations.