Rozprawy doktorskie na temat „Coordinative Polymerization”
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Zhang, Wei. "Living coordinative chain transfer polymerization of 1-alkenes". College Park, Md. : University of Maryland, 2008. http://hdl.handle.net/1903/8897.
Thesis research directed by: Dept. of Chemistry and Biochemistry. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Valente, Andreia. "Lanthanide based coordinative chain transfer polymerization for architecture control in (co)polymers and ruthenium catalyzed ring-opening polymerization : two aspects of atom economy in polymerization catalysis". Thesis, Lille 1, 2010. http://www.theses.fr/2010LIL10061.
A newly synthesized Cp*La(BH4)2(THF)2 complex in combination with magnesium or aluminum alkyls was used for the coordinative chain transfer (co)polymerization (CCTP) of styrene and isoprene. Using this concept, we have accomplished the first catalyzed chain growth like reaction of styrene and isoprene, with control of the microstructure. The application of CCTP to statistical copolymerization represents a new and original approach to tune the composition of copolymers. In addition, a mechanistic study of the ring-opening polymerization of ε-caprolactone by [(η5-C5H5)Ru(η6-substituted arene)][PF6] complexes shows that the polymerization proceeds via an activated monomer mechanism by transfer to the alcohol with a change of hapticity of the arene ligand
Hashmi, Obaid Hasan. "Engineering of iron-based polymerization catalysts : towards the design of original multi-structured thermoplastic (co) polymers". Electronic Thesis or Diss., Université de Lille (2018-2021), 2021. http://www.theses.fr/2021LILUR022.
A series of iminopyridine-/iminoquinoline-based ligands L1-L11 of type 11-[(Ar)N=C(R)]-R’ (Ar = 2,6-Me2-C6H3 or 2,6-iPr2-C6H3 or 3,5-(CF3)2-C6H3 or C6F5, R = H or Me and R’ = 2-C6H5N or 2-C6H4N-5-Me or 2-C9H7N or 8-C9H7N) and their corresponding iron (II) complexes were developed. The complexes were fully characterized including by X-ray for new complexes (6-11) and their catalytic applications were investigated for the controlled coordinative polymerization of isoprene. The modulation of steric and electronic properties within this family of ligands/complexes has shown to influence the stereo-selectivity and activity of the polymerization of isoprene after activation with various cocatalysts. The resulting catalysts produced polyisoprenes with an excellent conversion, high activity and a variety of stereo-/regio-regularities. Some of these catalysts were also assessed for the coordinative polymerization of styrene and displayed good activity for the formation of syndiotactic enriched polystyrenes. Another organometallic methodology has been utilized for the synthesis of aminopyridine ligands (rac-L1H and rac-L2H) and their corresponding iron amide complexes 12 ((L1)2Fe), 13Py and 14Py (LnFe[N(SiMe3)2](Py)) for their application in the Ring-Opening (Co)polymerizaion of L-lactide and ε-caprolactone where the complexes 13Py and 14Py proved to be effective
Obenauf, Johannes [Verfasser], i Rhett [Akademischer Betreuer] Kempe. "Coordinative Chain-Transfer Polymerization of Ethylene with NCN-Ligand Stabilized Complexes of Titanium and Zirconium / Johannes Obenauf. Betreuer: Rhett Kempe". Bayreuth : Universität Bayreuth, 2015. http://d-nb.info/1075249414/34.
Starks, Leonard J. "The polymerization of formaldehyde by coordination catalysis". Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/28018.
Tas, Huseyin. "Coordination Polymerization Of Cyclic Ethers By Metal Xanthates And Carbamates". Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1225028/index.pdf.
high molar mass, crystalline (K-polymer) and low molar mass (D-polymer). Formation of double bonds in D-polymer was thought to be due to as an anionic process. Polymerization reactions were studied by changing polymerization conditions and reacting catalyst with predetermined amount of water. It&
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s found that Sn(isoPr)Xt have considerably low efficiency than that of Zn(isoPr)Xt catalyst. The yield linearly increases by increasing catalyst concentration. The propagation is competed by termination or transfer process hence overall activation energy is negative. Some mechanistic features of this system was also discussed. The catalytical activity of carbamates in this field has also been reported, without any information about catalytical efficiency and stereoregularity of the process. Therefore zinc diethyl dithiocarbamate was also studied and found as an active catalyst in stereoregular polymerization but it showed weaker efficiency in the PO polymerization than that of Zn(isoPr)Xt catalyst (about 12 times weaker).
Mochizuki, Shuto. "Controlled radical polymerization in designed porous materials". Kyoto University, 2019. http://hdl.handle.net/2433/242535.
Noack, Cassandra, i n/a. "Studies in Coordination Chemistry". Griffith University. School of Science, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20031030.145610.
Noack, Cassandra. "Studies in Coordination Chemistry". Thesis, Griffith University, 2003. http://hdl.handle.net/10072/366798.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Science
Faculty of Science
Full Text
Groeneman, Ryan H. "Investigating the inclusion chemistry of multi-dimensional coordiation polymers /". free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9999289.
Megrahi, Abdunnaser. "Super bulky α-diimine ligands and their coordination complexes for use as polymerization catalysts". Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505376.
Cleary, Brian P. "Structural aspects of bis(quadridentate)zirconium(IV) complexes. Ligand motion and ligand exchange behavior of bis(N, N'-disalicylidene-1,2-phenylenediamino)zirconium(IV) and the two new complexes bis(N, N'-disalicylidene-cis-1,2-diamino-cyclohexane)-zirconium(IV) and bis(N, N''-disalicylidene-trans-1,2-diaminocyclhexane)zirconium(IV) /". Online version of thesis, 1989. http://hdl.handle.net/1850/11434.
Wheaton, Craig Andrew. "The development of cationic zinc complexes as a new class of lactide polymerization catalyst". Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Chemistry and Biochemistry, 2011, 2011. http://hdl.handle.net/10133/3108.
xxiv, 254 leaves : ill. ; 29 cm + 1 CD-ROM
Liu, Shaofeng. "Synthesis of transition metal complexes and their application for ethylene oligomerization and polymerization". Strasbourg, 2011. http://www.theses.fr/2011STRA6062.
Catalytic ethylene oligomerization leading to linear α-olefins (C4-C20) has become of considerable interest in both academia and industry owing to their growing demand as comonomers, lubricants, surfactants, etc. We thus became particularly interested in the coordination chemistry and catalytic behavior of metal complexes bearing heterotopic ligands as potential catalysts for this reaction. Using the bis(2-picolyl)phenylphosphine (NPN) ligand, neutral and cationic mononuclear Pd(II) complexes have been prepared and fully characterized as well as the dinuclear complex [Pd2Cl2(μ-NPN)2](PF6)2. The products from the reaction of [CrCl3(NPN)] with various typical cocatalysts illustrated the different functions of the latter. With TlPF6, it unexpectedly led to a novel adduct [CrCl3(NPN)TlPF6] exhibiting unusual interactions involving the Tl+ cation of possible relevance to catalyst activation steps. Some Ti(IV) complexes bearing benzimidazolyl-based amidate ligands displayed after activation with MAO high catalytic activities and good stability for prolonged reaction times and elevated reaction temperature, and other exhibited good to high catalytic activities towards ethylene polymerization and ethylene/α-olefin copolymerization in the presence of MAO. This work on new Pd(II), Cr(III) and Ti(IV) complexes has provided a useful insight into catalytic systems for ethylene oligomerization or polymerization
Ritch, Grayson D. "Synthesis, Characterization, and Reactivity of Novel Zinc Coordination Complexes". Kent State University Honors College / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1399675758.
Carlise, Joseph Raymond. "Poly(norbornene) supported side-chain coordination complexes : an efficient route to functionalized polymers /". Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-04072006-111344/.
Prof. Will Rees, Committee Member ; Prof. Charles Liotta, Committee Member ; Prof. David Collard, Committee Member ; Prof. Marcus Weck, Committee Chair ; Prof. Kent Barefield, Committee Member.
Brodsky, Kathy-Jo. "The synthesis and characterization of bis(4-(3-(4-phenoxy)propionitrile))-N, N-disalicylidene-1,2-phenylenediamino)zirconium(IV), Zr(nitrile)₂ and the attempted synthesis of Zr(amine)₂ and coordination polymers containing Zr(dspOH)₂ /". Online version of thesis, 1994. http://hdl.handle.net/1850/11764.
Lentz, Nicolas. "Metallylene-sulfur compounds : synthesis, characterization and applications in coordination and catalysis". Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30274/document.
This work concerns the synthesis of mixed germylene-sulfoxide ligands that were involved in coordination chemistry with several transition metals and finally applied in hydrogen transfer catalysis. In a second part, the synthesis of new metallylenes stabilized by a sulfonimidamide group was develop, which were applied in polymerization catalysis. The first chapter is centered on the state of the art of germylenes with their synthesis, their stabilization and finally their coordination chemistry and applications in catalysis. Sulfoxides will also be described for their potential as hemilabile ligands. The second chapter describes the synthesis of germylene-α-sulfoxide ligands as structurally tunable structures (cyclohexyl, tBu, tolyl..) and with different oxidation states of the sulfur atom (thioether, sulfoxide and sulfone). The coordination chemistry led to the formation of bis-germylene group IV complexes, bidentate-ruthenium and monodentate ruthenium complexes. The third chapter shows the extension of the methodology to the formation of germylene-β-sulfoxide ligands. The influence of the spacer between the two entities on the coordination chemistry was studied and shows the formation of bidentate group IV complexes. Coordination to ruthenium led to obtain a surprising bis-ruthenium complex characterized by X-ray diffraction analysis. Finally, the novel architecture allowed to obtain two nickel (0) complexes, one of them including carbonyl ligands permitting a TEP comparison. The fourth chapter is centered on the synthesis of new ligands, analogue of amidinate substituents for metallylene stabilization with a central sulfur atom. The effect brought to the metallylene center by the sulfonimidamide was studied by DFT calculations. The last chapter concerns the application of several ruthenium complexes in hydrogen transfer reaction with various carbonyl compounds. The use of sulfonimidamide stannylenes was also investigated in polymerization catalysis of ε-caprolactone
Egly, Julien. "Synthèse de complexes métalliques et leurs applications en polymérisation de polyesters, en catalyse et en photo-physique". Thesis, Strasbourg, 2020. http://www.theses.fr/2020STRAE033.
In a project carried out in close collaboration with a chemical industry, the initial problem was to develop new titanium-based industrial polycondensation catalysts for the production of polyethylene terephthalate. The valorization of TiCl3OEt, an industrial by-product, allowed the development of a series of polycondensation catalysts. Polymerization results indicate that most of our catalyst systems are as good as or better than commercial catalysts. In parallel, we have been interested in the synthesis of ruthenium(II) complexes to catalyze the oxidative double dehydrogenation reaction of primary amine to nitrile. In a first step, we noticed that the [Ru(p-cym)Cl2]2 complex was capable of converting primary amines into nitriles, without the addition of additional ligand or additives. In order to improve yields and selectivity, we synthesized several original ruthenium(II) complexes stabilized by a bidendate NHC-thioether ligand. Finally, in order to enhance the value of phosphines produced in the laboratory, we were interested in the preparation of copper(I) complexes. The synthesis, by mechanochemistry, allowed us to quickly obtain the corresponding dinuclear complexes with good yields. The different complexes all exhibit intense solid-state photoluminescence with good quantum yields
Pollino, Joel Matthew. "The "Universal Polymer Backbone" concept". Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-11112004-143714/unrestricted/pollino%5Fjoel%5Fm%5F200412%5Fphd.pdf.pdf.
Weck, Marcus, Committee Chair ; Jones, Christopher, Committee Member ; Collard, David, Committee Member ; Liotta, Charles, Committee Member ; Bunz, Uwe, Committee Member. Includes bibliographical references.
Peleška, Jan. "Kinetika koordinační polymerace 1-olefinů katalyzované diiminovými komplexy niklu". Doctoral thesis, Vysoké učení technické v Brně. Fakulta chemická, 2012. http://www.nusl.cz/ntk/nusl-233353.
Finne, Anna. "Novel Possibilities for Advanced Molecular Structure Design for Polymers and Networks". Doctoral thesis, KTH, Polymerteknologi, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3623.
QC 20100602
Hong, Xiang. "Nouveaux catalyseurs hétérogènes chiraux pour le dédoublement cinétique hydrolytique des époxydesTERMINAUX". Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00770302.
Dascalescu, Diana. "Ü-Olefins Coordination Polymerization studies with single site catalysts". Thesis, 2008. http://spectrum.library.concordia.ca/975911/1/MR45286.pdf.
Popenova, Svetlana. "Computational studies of substituted zirconocenium catalysts for olefin coordination polymerization". Thesis, 2009. http://spectrum.library.concordia.ca/976350/1/MR63254.pdf.
Sampson, Jessica. "Nuclearity and π-π Interaction Effects on Olefin Polymerization and Coordination Chemistry". Thesis, 2019. https://thesis.library.caltech.edu/11450/13/fullthesis_JessicaSampson_20190410.pdf.
This thesis details work performed on the use of secondary coordination sphere effects to impact olefin polymerization activity and tacticity control and the coordination chemistry of Y, Fe, and Cu. Chapter One provides a general introduction and summary of each chapter. Chapter Two describes work in collaboration with KFUPM on nuclearity effects in Zr bisamine bisphenolate complexes. Chapter Three describes the coordination chemistry of arene-appended Y di(pyridyl) pyrrolide complexes and the olefin polymerization activity of tris(dimethylamido) Ti, Zr, and Hf di(pyridyl) pyrrolide complexes. Appendix A describes the effects of bulky trialkylsilyl, triphenylsilyl, and diphenyl(alkyl)silyl substituents on the tacticity control of monozirconium amine bis(phenolate) complexes in 1-hexene polymerization. Appendix B describes the synthesis and structures of miscellaneous dizirconium amine bis(phenolate) complexes which could not be isolated in sufficient purity for olefin polymerization tests. Appendix C describes the synthesis, electrochemistry, and reduction of mesityl-substituted di(pyridyl) NHC supported Fe complexes. Appendix D describes the preparation, solid-state structures, and electrochemistry of di(pyridyl) pyrrolide and di(pyridyl) NHC Cu(I) and Cu(II) complexes displaying π-π interactions in the solid state. Appendix E describes work towards the synthesis of di(pyridyl) guanidinate proligands and metal complexes supported by di(pyridyl) urea, monopyridyl and di(pyridyl) N-heterocyclic olefin and N-heterocyclic vinylidene ligands for use in Lewis acid assisted olefin polymerization. Appendix F includes relevant spectra.
Chou, Kuo yao, i 周國耀. "Transmetallation reactions and their applications in the coordination polymerization studies and polymer syntheses". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/34957801722304654863.
國立中正大學
化學工程研究所
91
Abstract Transmetallation, by definition, is related to a process that induces the exchanging of the coordinated ligands between different metal complexes (or catalysts), and hence can lead to the alternation on the geometry of catalysts and perturbation of the electronic configuration around metal centers. Utilizations of transmetallation techniques have became the commonly used methods for the generation of active catalysts in coordination polymerization chemistry. In order to explore the possible applications of transmetallation reactions, we have focused our studies on the novel transmetallation reactions involving early transition metal complex (group III, group IV metal complexes), which can serve as active catalysts to promote the polymerization of α-olefins. In the course of our studies, we have focused that a novel [Hydrotris(3,5-dimethylpyrazol-1-yl)borate titanium triisopropoxide] can be easily prepared by transmetallation reactions. Further more, the catalyst can act as an active catalyst for syndiospecific polymerization of styrene for addition polymerization of morbornene and for ring open polymerization of norbornene.
"Three-Coordinate Aluminum Alkyl Complexes for Applications in the Polymerization of Cyclic Esters". Thesis, 2014. http://hdl.handle.net/10388/ETD-2014-05-1556.
Kuo, Chun-Hung, i 郭俊宏. "Study and Pervaporation Application of Synthesizing Functional Poly(4-methyl-1-pentene) via Complex Coordination Polymerization". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/09144363231827510138.
中原大學
化學研究所
91
This study focuses on modifying poly(4-methyl-1-pentene) (TPX) and increasing the efficiency of this polymer membrane in separating liquids in pervaporation (PV). TPX is the common name of ploy(4-methyl-1-pentene) . First, the monomer, 4-methyl-1-pentene, was copolymerized with other diene comonomers by complex coordination polymerization and was functionalized. The aim was to increase the polarity of TPX and increase its effectiveness in separating PV. Two catalytic systems were used to prepare the copolymer. One used homogeneous metallocene catalyst (Et(Ind)2ZrCl2/MAO)to copolymerize the 4-methyl-1-pentene and 5-ethylidene-2-norbornene ( ENB ). The copolymerization was efficient, but the action as a membrane was poor. Next, the heterogeneous Ziegler-Natta catalyst system (TiCl3-AA/AlEt2Cl) was used to copolymerize the 4-methyl-1-pentene and 1,7-octadiene. The copolymerization was not excellent but was acceptable. The copolymer did not crosslink, and the ability of to act as a membrane was better. Then, the unreactive vinyl group of the comonomer unit in the TPX was epoxidized using m-chloroperoxybenic acid ( MCPBA ). Finally, methanol or lithium aluminum hydride was used to open the ring and graft the -OCH3 and -OH functional groups. Hydrochloric acid and bromine (Br2) could also be used to perform the addition reaction. Then poly(methylmethacrylate acrylonitrile) was grafted via atomic transfer radical polymerization ( ATRP ). The compound was examined by 1H-NMR ,FT-IR ,TGA and DSC were used to measure the degradation temperature (Td), the glass transition temperature (Tg) and the melt temperature (Tm). The results indicated that the functional TPX of the methanol opened ring increasing the efficiency of separation of the alcohol/water solution. The permeation rate, separation factor and PSI value on the PV, were higher.
Roy, Suman Kumar. "C-N BOND FORMING REACTIVITY IN ANILINE AND THEIR CO-ORDINATION CHEMISTRY". Thesis, 2019. http://hdl.handle.net/10821/8200.
The research guide was Prof. Sreebrata Goswami of Inorganic Chemistry division under SCS [School of Chemical Science]
Research was conducted under CSIR fellowship in IACS
Srebro-Hooper, Monika. "Theoretical study on the ethylene polymerization processes catalyzed by half-metallocene complexes of titanium(IV)". Praca doktorska, 2010. https://ruj.uj.edu.pl/xmlui/handle/item/53089.
Stahlová, Sabina. "Funkcionalizované mikroporézní polymerní sítě připravené z ethynylarenů". Doctoral thesis, 2016. http://www.nusl.cz/ntk/nusl-353418.
Slováková, Eva. "Polymerizace bifunkčních acetylenů katalyzovaná komplexy rhodia". Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-297634.
Slováková, Eva. "Konjugované porézní polymery odvozené od diethynylarenů řetězovou polymerizací a polycyklotrimerizací". Doctoral thesis, 2015. http://www.nusl.cz/ntk/nusl-350048.