Highly conjugated visible and near-infrared light photoinitiating systems for radical and cationic polymerizations

Suerkan, Ali
Aydan Alkan, Ecem
Kaya, Kerem
Udum, Yasemin
Toppare, Levent Kamil
Yağcı, Yusuf
In this communication, we report highly conjugated thiophenes having [1,2,5]-thiadiazolo and [1,2,5]-selenadiazolo [3,4-f]-benzo [1,2,3] triazole in conjunction with diphenyliodonium hexafluorophosphate salt(DPI) as new visible and near-infrared light (NIR) photoinitiator systems for free radical (FRP) and cationicpolymerizations (CP). The postulated mechanism is based on the electron transfer reactions between the excitedconjugated molecule and DPI ions. The radicals and Bronsted acid formed this way initiate FRP and CP ofappropriate monomers such as methylacrylate (MA), methyl methacrylate (MMA), triethylene glycol dimethacrylate(TEGDMA) and cyclohexene oxide (CHO), isobutyl vinylether (IBVE) respectively. The possibility of insitu hybrid polymerization is also demonstrated using bifunctional monomer glycidyl methacrylate (GMA).
Progress In Organic Coatings


Numerical implementation of magneto-acousto-electrical tomography (MAET) using a linear phased array transducer
GÖZÜ, Mehmet Soner; ZENGİN, Reyhan; Gençer, Nevzat Güneri (2018-02-01)
In this study, the performance and implementation of magneto-acousto-electrical tomography (MAET) is investigated using a linear phased array (LPA) transducer. The goal of MAET is to image the conductivity distribution in biological bodies. It uses the interaction between ultrasound and a static magnetic field to generate velocity current density distribution inside the body. The resultant voltage due to velocity current density is sensed by surface electrodes attached on the body. In this study, the theory...
Dosi, Anar (2012-12-01)
In this paper we investigate multinormed W*-algebras in terms of the central topologies of W*-algebras. The main result asserts that each multinormed W*-algebra can be realized as a local von Neumann algebra on a certain domain in a Hilbert space. Moreover, it admits the predual (unique up to an isometry), which is the l(1)-normed space. In the normed case the assertion is reduced to the known Sakai theorem.
Flutter Optimization of a Wing-Engine System with Passive and Active Control Approaches
Asadi, Davood; Farsadi, Touraj; Kayran, Altan (2021-04-01)
In the present study, the flutter performance of a composite thin-walled beam wing-engine system is optimized by implementing two different control approaches: 1) passive open-loop and 2) active closed-loop control. Sequential quadratic programming and genetic algorithm methods are applied in the optimization process. In the passive control method, variable stiffness is acquired by constructing laminates of thin-walled beam with curvilinear fibers having prescribed paths. The goal is to exploit the desirabl...
Verification of Modular Diagnosability With Local Specifications for Discrete-Event Systems
Schmidt, Klaus Verner (Institute of Electrical and Electronics Engineers (IEEE), 2013-09-01)
In this paper, we study the diagnosability verification for modular discrete-event systems (DESs), i.e., DESs that are composed of multiple components. We focus on a particular modular architecture, where each fault in the system must be uniquely identified by the modular component where it occurs and solely based on event observations of that component. Hence, all diagnostic computations for faults to be detected in this architecture can be performed locally on the respective modular component, and the obt...
Chaotic behavior of triatomic clusters
Yurtsever, E; Elmaci, N (1997-01-01)
The dynamics of triatomic clusters is investigated employing two-body Lennard-Jones and three-body Axilrod-Teller potential functions. Lyapunov exponents are calculated for the total energy range of -2.70 epsilon <E< -0.72 epsilon. The effects of the initial geometry of the cluster, its angular momentum, and the magnitude of three-body interactions are analyzed. It has been found that the dominating factor for the extent of chaotic behavior is the energy assigned to vibrational modes. The introduction of th...
Citation Formats
A. Suerkan, E. Aydan Alkan, K. Kaya, Y. Udum, L. K. Toppare, and Y. Yağcı, “Highly conjugated visible and near-infrared light photoinitiating systems for radical and cationic polymerizations,” Progress In Organic Coatings, pp. 1–6, 2021, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/88923.