Auswahl der wissenschaftlichen Literatur zum Thema „Suzuki polymerization“

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Zeitschriftenartikel zum Thema "Suzuki polymerization"

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Bautista, Michael V., Anthony J. Varni, Josué Ayuso-Carrillo, Matthew C. Carson und Kevin J. T. Noonan. „Pairing Suzuki–Miyaura cross-coupling and catalyst transfer polymerization“. Polymer Chemistry 12, Nr. 10 (2021): 1404–14. http://dx.doi.org/10.1039/d0py01507e.

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Namgung, Ho, Jeong Jun Lee, Young Jin Gwon und Taek Seung Lee. „Synthesis of tetraphenylethylene-based conjugated microporous polymers for detection of nitroaromatic explosive compounds“. RSC Advances 8, Nr. 60 (2018): 34291–96. http://dx.doi.org/10.1039/c8ra06463f.

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Guo, Ting, Wenkai Zhong, Jianhua Zou, Lei Ying, Wei Yang und Junbiao Peng. „Efficient binary white light-emitting polymers grafted with iridium complexes as side groups“. RSC Advances 5, Nr. 109 (2015): 89888–94. http://dx.doi.org/10.1039/c5ra16717e.

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Wang, Ziyu, Cheng Wang, Yayun Fang, Hong Yuan, Yiwu Quan und Yixiang Cheng. „Color-tunable AIE-active conjugated polymer nanoparticles as drug carriers for self-indicating cancer therapy via intramolecular FRET mechanism“. Polymer Chemistry 9, Nr. 23 (2018): 3205–14. http://dx.doi.org/10.1039/c8py00329g.

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Dai, Chunhui, Dongliang Yang, Xiao Fu, Qingmin Chen, Chengjian Zhu, Yixiang Cheng und Lianhui Wang. „A study on tunable AIE (AIEE) of boron ketoiminate-based conjugated polymers for live cell imaging“. Polymer Chemistry 6, Nr. 28 (2015): 5070–76. http://dx.doi.org/10.1039/c5py00733j.

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Yokozawa, Tsutomu, Yutaka Nanashima, Haruhiko Kohno, Ryosuke Suzuki, Masataka Nojima und Yoshihiro Ohta. „Catalyst-transfer condensation polymerization for precision synthesis of π-conjugated polymers“. Pure and Applied Chemistry 85, Nr. 3 (12.08.2012): 573–87. http://dx.doi.org/10.1351/pac-con-12-03-13.

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Catalyst-transfer condensation polymerization, in which the catalyst activates the polymer end-group, followed by reaction with the monomer and transfer of the catalyst to the elongated polymer end-group, has made it feasible to control the molecular weight, polydispersity, and end-groups of π-conjugated polymers. In this paper, our recent progress of Kumada–Tamao Ni catalyst-transfer coupling polymerization and Suzuki–Miyaura Pd catalyst-transfer coupling polymerization is described. In the former polymerization method, the polymerization of Grignard pyridine monomers was investigated for the synthesis of well-defined n-type π-conjugated polymers. Para-type pyridine monomer, 3-alkoxy-2-bromo-5-chloromagnesiopyridine, afforded poly(pyridine-2,5-diyl) with low solubility in the reaction solvent, whereas meta-type pyridine monomer, 2-alkoxy-5-bromo-3-chloromagnesio-pyridine, yielded soluble poly(pyridine-3,5-diyl) with controlled molecular weight and low polydispersity. In Suzuki–Miyaura catalyst-transfer coupling polymerization, t-Bu3PPd(Ph)Br was an effective catalyst, and well-defined poly(p-phenylene) and poly(3-hexylthiophene) (P3HT) were obtained by concomitant use of CsF/18-crown-6 as a base in tetrahydrofuran (THF) and a small amount of water.
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Sugita, Hajime, Masataka Nojima, Yoshihiro Ohta und Tsutomu Yokozawa. „Unstoichiometric Suzuki–Miyaura cyclic polymerization of extensively conjugated monomers“. Polymer Chemistry 10, Nr. 10 (2019): 1182–85. http://dx.doi.org/10.1039/c8py01741g.

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Suzuki–Miyaura polycondensation of an excess of extensively conjugated aromatic dibromide with 1.0 equivalent of phenylenediboronate in the presence of tBu3PPd(0) precatalyst afforded cyclic polymers.
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Wang, Yunshu, Shuangshuang Zhang, Laibing Wang, Wei Zhang, Nianchen Zhou, Zhengbiao Zhang und Xiulin Zhu. „The Suzuki coupling reaction as a post-polymerization modification: a promising protocol for construction of cyclic-brush and more complex polymers“. Polymer Chemistry 6, Nr. 25 (2015): 4669–77. http://dx.doi.org/10.1039/c5py00551e.

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Sugita, Hajime, Masataka Nojima, Yoshihiro Ohta und Tsutomu Yokozawa. „Unusual cyclic polymerization through Suzuki–Miyaura coupling of polyphenylene bearing diboronate at both ends with excess dibromophenylene“. Chemical Communications 53, Nr. 2 (2017): 396–99. http://dx.doi.org/10.1039/c6cc08333a.

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Wang, Haiqing, Dehui Sun, Qichen Lu, Fulei Wang, Lili Zhao, Zengfu Zhang, Xun Wang und Hong Liu. „Bio-inspired synthesis of mesoporous HfO2 nanoframes as reactors for piezotronic polymerization and Suzuki coupling reactions“. Nanoscale 11, Nr. 12 (2019): 5240–46. http://dx.doi.org/10.1039/c9nr00707e.

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Mesoporous HfO2 nanoframes were elaborately fabricated, inspired by the flexible assembly principles in the biomolecules, and were demonstrated as nanoreactors for piezotronic polymerization and Suzuki coupling reactions.
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Dissertationen zum Thema "Suzuki polymerization"

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Elmalem, Einat. „Synthesis of π-conjugated polymers via Suzuki cross-coupling polymerization“. Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608242.

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Fischer, Christoph Siegfried Winfried [Verfasser]. „Luminescent Conjugated Polymer Nanoparticles from Suzuki-Miyaura Chain-Growth Polymerization / Christoph Siegfried Winfried Fischer“. Konstanz : Bibliothek der Universität Konstanz, 2015. http://d-nb.info/1105479110/34.

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Heimonen, Johanna. „Synthesis of a polar conjugated polythiophene for 3D-printing of complex coacervates“. Thesis, Linköpings universitet, Laboratoriet för organisk elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-177396.

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The aim of this thesis was to synthesize a functionalized polar conjugated polythiophene that could be (3D-) printed into form-stable structures for bio-interfacing. The material design rationale aimed for a water-processable polymer that had the capability of electronic and ionic conduction, by using a thiophene backbone and oligoethylene side chains. Functionalization of the oligoethylene side chains with carboxylate groups created a polyanion, which allowed for a bio-inspired approach to combine printability and form-stability through formation of complex coacervates. The synthesis of the conjugated monomer and polymer was optimized to provide a more sustainable and material efficient synthesis route. Combined structural analysis with 1H-NMR, FT-IR and UV-vis revealed successful synthesis of the target polymer. Spectro electrochemistry revealed that the polymer was optically and electrochemically active in both the protected and deprotected form. The obtained material is processable from water, and initial tests revealed that crosslinking can be achieved through formation of acid dimers, ionic crosslinks with Ca2+ ions and complex coacervation with a polycation.

Examensarbetet är utfört vid Institutionen för teknik och naturvetenskap (ITN) vid Tekniska fakulteten, Linköpings universitet

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Yang, Ya-Zhu, und 楊雅筑. „Synthesis of linear and hyperbranched indole-functionalized conjugated polyfluorenes via Suzuki polymerization in miniemulsion“. Thesis, 2016. http://ndltd.ncl.edu.tw/handle/39847358565939876262.

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碩士
元智大學
化學工程與材料科學學系
104
This study describes the synthesis of linear (LCF) and hyperbranched conjugated polyfluorenes (HCF) containing various end-capping agents (phenyl and indole groups) in the main chain, through conventional Suzuki and Suzuki coupling polymerization in miniemulsion. The optical, photophysical, and electrochemical properties, and polymeric morphologies of conjugated polymers were characterized using UV-vis, PL, CV, SEM, TEM, and DLS methods. The corresponding intramolecular charge and energy transfers were also investigated. The weight-average molecular weights (Mws) of LCF-B and LCF-I, using conventional Suzuki coupling polymerization, were 4225 and 1436 g/mol, with the corresponding polydispersity indices of 1.33 and 1.19, respectively. These synthesized polymers exhibited the decomposition temperatures (Tds) in the range of 214 and 373 oC. The glass transition temperatures (Tgs) were in the range of 107 and 144 oC. In THF, these polymers showed strong absorption that peaked at approximately 350 nm, resulting from π-π* electronic transitions within the polymer backbone. The fluorescence spectra of indole-based polymers showed broad peaks in the range of 375-500 nm. The estimated HOMO and LUMO energy levels of polymers were similar, as confirmed by CV. The energy bandgaps (Egs) of HCFs were larger than those of LCFs, using density functional theory (DFT) calculations. The spherical particles of polymers, using Suzuki coupling polymerization in miniemulsion, with average diameter in the range of 62.5~168.2 nm and 2.5~ 26.75 nm can be confirmed clearly by SEM, TEM images and dynamic laser scattering (DLS) measurements, respectively. In order to compare the role of structure and dimensionality on the specific surface area and porosity, nitrogen sorption experiments for LCFs and HCFs, using Suzuki coupling polymerization in miniemulsion, will also conducted. The chemosensory applications will also be studied.
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Chen, Ming-Tsz, und 陳銘賜. „Palladacyclic Complexes Bearing Four-membered Ring Diimine Ligands with Different Functionalities as Catalysts in Suzuki and Heck ReactionsMagnesium Anilido-Oxazolinate Complexes as Catalysts for Ring Opening Polymerization of L-Lactide“. Thesis, 2008. http://ndltd.ncl.edu.tw/handle/43043357143502906268.

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博士
國立中興大學
化學系所
96
The thesis discusses some palladacycles and magnesium complexes applied in catalytic reactions. For convenience and better understanding, the thesis is divided into two parts. The first part describes palladium-catalyzed reactions and the second part deals with ROP reaction catalyzed with magnesium complexes. Part one-A: Preparation of novel unsymmetrical, tridentate sulfur-containing ligand precursors, PhN=C(CMe2)(NPh)C=N(CH2)2SR [R=CMe3, Ph] are described. Reaction of ligand precursors with one molar equivalent of Pd(OAc)2 yields palladium(II) complexes, [PhN=C(CMe2)(N-η1-Ph)C=N(CH2)2SR]Pd(OAc). Treatment of orthometallated palladium(II) acetate complexes with excess of LiCl in methanol gives the complexes [PhN=C(CMe2)(N-η1-Ph)C=N(CH2)2SR]PdCl. Molecular structures have been determined by X-ray diffraction. The application of those novel palladacyclic complexes to the Suzuki and Heck reactions with aryl halide substrates was examined. Part one-B: Four new ligand precursors, PhN=C(CMe2)(NPh)C=N(E) [E =(CH2)2OMe, CH2C(=O)OMe, (CH2)2CH3, and C6H5] are reported. Treatment of ligand precursors with one molar equivalent Pd(OAc)2 in THF or CH3CN affords aceto-bridged palladium(II) complexes, [{PhN=C(CMe2)(N-η1-Ph)C=N(E)}Pd(OAc)]2, as di-nuclear palladium complexes. Reactions of Palladium(II) complexes with excess saturated NaCl(aq) in acetone afford orthometallated dimer or monomer palladium(II) complexes, as [{PhN=C(CMe2)(N-η1-Ph)C=N(CH2)2CH3}PdCl]2 or [PhN=C(CMe2)(N-η1-Ph)C=N(E)]PdCl. The crystal and molecular structures are reported and the catalytic activities of these palladacycles toward the Suzuki and Heck reactions are investigated. Part two: A new series of mononuclear magnesium complexes of type L2Mg (where L = anilido-oxazolinate ligands bearing different functional groups) has been prepared. The activities of magnesium complexes toward the ring opening polymerization of L-lactide have been investigated. Experimental results show that L2Mg complexes efficiently initiate the ring-opening polymerization of L-Lactide in the presence of benzyl alcohol and yielding polymers in a controlled fashion.
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Wen-Chou, Hung, und 洪文周. „Synthesis and Characterization of Schiff Base Metal Complexes and Their Applications in Ring Opening Polymerizations and Suzuki Coupling Reactions“. Thesis, 2004. http://ndltd.ncl.edu.tw/handle/74420072594123386368.

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