Atom transfer rearrangement radical polymerization of diammine-bis(2,4,6-trihalophenolato)copper(II) complexes in the solid state

Date

2006-10-01

Author

Goekagac, Guelsuen
Sonsuz, Muammer
Sen, Fatih
Kisakuerek, Duygu

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

211
views

0
downloads

The synthesis of the poly(dichloro- or dibromophenylene oxide)s was achieved by the thermal decomposition of diammine-bis(2,4,6-trihalophenolato)copper(II) complexes in the solid state by atom transfer rearrangement radical polymerization. The thermal decomposition was performed either at different temperature ranges, 110-250 degrees C, for 3 h, or at the maximum conversion temperature for different time intervals, 3-48 h. Maximum yields of polymers were obtained at 190 degrees C and 3 h. The polymers were characterized by FTIR, H-1 and C-13 NMR spectroscopy, SEM, TGA and molecular weight determination by viscometrical methods. All the polymers were rigid, having high T-g values between 178 and 189 degrees C. Only small amounts of Cu were detected by AAS.

Subject Keywords

General Chemistry

URI

https://hdl.handle.net/11511/67363

Journal

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES

DOI

https://doi.org/10.1515/znb-2006-1006

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Atom-transfer radical addition (ATRA) and cyclization (ATRC) reactions catalyzed by a mixture of [RuCl2Cp*(PPh3)] and magnesium Thommes, Katrin; Icli, Burcak; Scopelliti, Rosario; Severin, Kay (Wiley, 2007-01-01) A new catalytic procedure for atom-transfer radical addition (ATRA) and cyclization (ATRC) reactions is described. The combination of the ruthenium(III) complex [RuCl2-Cp*(PPh3)] (Cp*: pentamethylcyclopentadienyl) with magnesium allows these reactions to be performed under mild conditions with high efficiency. In most cases, the catalyst concentrations required are significantly lower than those used in previously reported procedures. It is suggested that magnesium acts as a reducing agent that generates an...
ANODIC POTENTIAL HOMO ENERGY RELATIONS OF FLUORENE DERIVATIVES SEN, S; CELEBI, N; TURKER, L; Önal, Ahmet Muhtar (Wiley, 1993-09-01) Anodic oxidation peak potentials (E(p,a)) of some fluorene derivatives were measured on a Pt-degrees electrode versus Ag-degrees/Ag+ in acetonitrile-TBAFB by cyclic voltammetry. The highest occupied molecular orbital (HOMO) energies of the compounds were calculated within the Huckel molecular orbital (HMO) framework. The measured E(p,a) values were correlated to theoretical HOMO energies with a linear regression model.
Thermal catalytic hydrosilylation of conjugated dienes with triethylsilane in the presence of tricarbonyl(o-xylene)metal (metal = Cr, Mo, W) complexes Kayran, C; Rouzi, P (Walter de Gruyter GmbH, 2001-11-01) The thermal catalytic hydrosilylation of 1,3-butadiene (1), trans-2-methyl-1, 3-pentadiene (2), 2,3-dimethyl-1,3-butadiene (3), and isoprene (4), with triethylsilane were studied in the presence of M(CO)(3) (o-xylene) (M = Cr, Mo, W) complexes in polar and nonpolar solvents such as tetrahydrofuran, hexane and toluene. Mo(CO)(3) (o-xylene) was found to be the only active catalyst for the hydrosilylation of 3 with triethylsilane, which gave 1-triethylsilyl-2,3-dimethyl-2-butene (3a), as hydrosilylated product...
Atom transfer rearrangement radical polymerization of (2,4,6-trihalophenolato) Fe(II)/Ce(III)/Ce(IV) complexes in solid state Celik, Gueler Bayrakli; Sultan, Wadie; Kisakuerek, Duygu (Walter de Gruyter GmbH, 2006-11-21) The synthesis of poly(dihalophenylene oxide)s by thermal decomposition of Fe(II), Ce(III) and Ce(IV) phenolato complexes with pyridine as neutral ligands were achieved at different temperature ranges (140 degrees - 250 degrees C) with different time intervals (3 - 48 hr) via atom transfer rearrangement radical polymerization (ATRRP). The complexes were characterized by FTIR, DSC, UV-Visible, mass spectroscopy, magnetic susceptibility and elemental analyses. Structural analyses of polymers were performed by ...
CATALYTIC CHARACTERISTICS OF MASSIVE AND LOADED SULFONIC RESINS IN THE SYNTHESIS OF ETHYL tert-BUTYL ETHER AT ATMOSPHERIC AND INCREASED PRESSURE Vlasenko, N. V.; Kochkin, Yu. N.; Strizhak, P. E.; Doğu, Timur; DOĞU, GÜLŞEN; OKTAR, NURAY; Degirmenci, L. (Springer Science and Business Media LLC, 2010-11-01) The catalytic characteristics of massive and loaded sulfonic resins in the synthesis of ethyl tert-butyl ether at atmospheric and increased pressures have been compared. It has been established that massive sulfonic resins are more active than loaded resins at atmospheric pressure. At higher pressures, on the other hand, the activity and selectivity of catalysts are greater the lower the content of polymer as a result of the increased effectiveness of the acid centers.

Citation Formats

G. Goekagac, M. Sonsuz, F. Sen, and D. Kisakuerek, “Atom transfer rearrangement radical polymerization of diammine-bis(2,4,6-trihalophenolato)copper(II) complexes in the solid state,” ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, pp. 1222–1228, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67363.