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Dissertations / Theses on the topic 'Vinyl'

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1

Lynam, Jason Martin. "Vinyl ketone and vinyl aldehyde complexes of ruthenium." Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265558.

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2

Yusuf, Said Abdi. "Miscibility study of poly(vinyl pyrrolidone)poly(vinyl butyral) blends." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60693.

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The miscibility of poly(vinyl pyrrolidone) PVP with copolymers of vinyl butyral and vinyl alcohol, containing 11% and 19% by weight of vinyl alcohol, has been investigated. To examine how the state of miscibility of these blends varies with the vinyl alcohol content of the copolymers, differential scanning calorimetry(DSC) and solid-state NMR methods were employed. PVP was found to form miscible blends with poly(vinyl butyral) PVB, containing 11wt% of vinyl alcohol, up to a weight ratio of 40/60(PVP/PVB11). At higher PVP loading, phase separated blends were obtained. In contrast, poly(vinyl bu
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3

Croot, Robert Arthur. "The characterisation and adsorption of vinyl alcohol vinyl acetate copolymers." Thesis, University of Bristol, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303767.

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4

Zeise, Tina. "Worte und Vinyl." Diss., lmu, 2006. http://nbn-resolving.de/urn:nbn:de:bvb:19-56250.

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5

Cauich-Rodriguez, Juan Valerio. "Hydrogels based on poly(vinyl alcohol-vinyl acetate) blends for biomedical applications." Thesis, Queen Mary, University of London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267577.

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6

D, Aguiar Donna-Leigh. "Surface modified cross-linked poly(vinyl alcohol)/poly(vinyl pivalate) suspension particles." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5475.

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Thesis (MSc (Chemistry and Polymer Science))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: In papermaking, fillers and additives are used to enhance paper properties. In this study spherical modified poly(vinyl alcohol) (PVA) particles were prepared for use as fillers. In order to determine the mechanism of adhesion of additives to cellulose (paper) fibres, these particles were modified to have surface functionality, with cationic and anionic surface charges, similar to charged polyelectrolyte additives. Typically, retention aids used to improve the fibre–fibre and fibre–filler
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7

Auden, Noel Geraint. "Ethylene-vinyl acetate copolymers." Thesis, Lancaster University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239046.

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8

Williams, S. "Vinyl substituted dienyl complexes." Thesis, University of East Anglia, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.255855.

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9

Buck, J. "Vinyl anions in synthesis." Thesis, University of Nottingham, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.353565.

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10

Laot, Christelle Marie III. "Spectroscopic Characterization of Molecular Interdiffusion at a Poly(Vinyl Pyrrolidone) / Vinyl Ester Interface." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36944.

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Mechanical properties of (woven carbon fiber / vinyl ester matrix) composites can be greatly improved if the interphase between the reinforcing high-strength low-weight fiber and the thermoset resin is made more compliant. In order to improve the adhesion of the vinyl ester matrix to the carbon fiber, a thermoplastic coating such as poly(vinyl pyrrolidone) (PVP) can be used as an intermediate between the matrix and the fiber. The extent of mutual diffusion at the (sizing material / polymer matrix) interphase plays a critical role in determining the mechanical properties of the composite. <p
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11

Morin, Aurélie. "Controlled radical polymerization of vinyl esters and vinyl amides : experimental and theoretical studies." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0117/document.

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Ces travaux de thèse portent sur la polymérisation radicalaire contrôlée (PRC) des esters et amides de vinyle. L’une des possibilités de contrôle est le piégeage dynamique réversible des chaînes radicalaires croissantes (P•) par un agent de contrôle (T) formant une espèce dormante (P─T’). La concentration en radicaux dans le milieu peut alors diminuer dramatiquement de sorte que les réactions indésirables de terminaisons soient négligeables et que le contrôle de la masse molaire des polymères soit atteint avec un faible indice de dispersité. L’utilisation de complexes métalliques, pouvant s’ox
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12

Guo, Boying. "New Ring Expansion and Ring Opening Reactions of Vinyl Oxetanes and Vinyl Oxiranes." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/315543.

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Three new synthetic methods employing vinyl oxetanes as substrates are presented. In Chapter 2, a new catalytic vinyl oxetane ring expansion is described. Origins, design, reaction, and optimizations are discussed. A novel asymmetric synthesis of 3,6-dihydro-2H-pyrans using chiral counterion catalysis is presented as part of these studies. In Chapter 3, the Z-selective ring opening of vinyl oxetanes using dialkyl dithiophosphate nucleophiles is described from initial discovery, through optimizations to the application towards the synthesis of thiopyrans. These insights were then utilized to de
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13

Wood, Timothy John. "An adsorption study of vinyl alcohol/vinyl acetate copolymers on polystyrene by quartz microbalance." Thesis, University of Bristol, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261278.

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14

Forrest, Martin J. "Characterisation of vinyl chloride oligomers." Thesis, Loughborough University, 1988. https://dspace.lboro.ac.uk/2134/27931.

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A low molecular weight fraction was obtained from a mass polymerised PVC resin by using diethyl ether Soxhlet extraction followed by either preparative gel filtration or solvent fractionation. A gas chromatography - mass spectroscopy (GC-MS) analysis of this fraction revealed that, in addition to vinyl chloride (VC) oligomers, it contained a large number of other compounds, in particular a large concentration of phthalates. By using adsorption liquid chromatography it was possible to remove the phthalates, along with other contaminants having a similar or greater polarity, from the low molecul
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15

Prud'hon, Luc, and Tom Donker. "The regeneration of vinyl records." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-19122.

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This thesis analyses the factors influencing the purchase of vinyl records by the members of generation Y in Sweden. Two interviews with local stores owners as well as a survey were perfomed in this regard.
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16

Breen, Anthony O. "Vinyl epoxides, radicals and DNA." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336204.

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17

Palmer, Stuart. "Photopolymerisable poly(vinyl alcohol) systems." Thesis, University of Kent, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342158.

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18

Rowbottom, Martin William. "Vinyl epoxides : synthesis and reactivity." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313015.

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19

Lefranc, Julien. "Lithiation chemistry of vinyl ureas." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/lithiation-chemistry-of-vinyl-ureas(b559b2b8-744e-4dbe-87ee-4a5fef7d3443).html.

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The construction of tertiary alkylamines is a synthetic challenge exacerbated by the poor electrophilicity of imines. Due to the presence of this kind of building block in a large number of bioactive molecules, the development of new strategies to synthesise the quaternary carbon centre is essential. This thesis describes the work carried out on the rearrangement of lithiated vinyl ureas in order to form α-tertiary amines. The first part presents how vinyl ureas were synthesised, using the reaction between an imine and an aryl isocyanate. The development of one-pot process allows the synthesis
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20

Andersson, Widing Jenny. "Vinyl, textil och textur : En kvalitativ studie om hur man kan applicera vinyl på olika textiler." Thesis, Konstfack, IBIS - Institutionen för bild- och slöjdpedagogik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-7318.

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Det finns tydliga rekommendationer för att värmeöverförande vinyl kan appliceras på polyester- eller bomullstextilier och hur lång tid med vilken temperatur man ska använda. Men det finns ingen information att hitta om hur resultatet blir om man applicerar vinylen på andra texturer än släta ytor eller värmekänsliga material. Syftet med denna studie är att undersöka vad som sker med det estetiska uttrycket och hur man kan applicera värmeöverförande vinyl på olika textila material med ett hållbart resultat. Undersökningen är uppdelad i två faser där första delen undersöker om det är möjligt att
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21

Price, David. "Characterisation of oligomers of vinyl polymers." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/26866.

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Large scale Soxhlet extraction and fractional precipitation have been utilised to provide low molecular weight extracts from poly(vinyl chloride) (PVC), polystyrene and polyethylene. These extracts were then resolved into their constituent oligomers by high performance gel permeation chromatography and high performance liquid chromatography.
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22

Fairbrass, Sheila Ann. "Surface deterioration of poly(vinyl chloride)." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322083.

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23

Davies, Christopher Daniel. "Asymmetric synthesis utilising chiral vinyl dioxazaborocines." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322323.

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24

Isaure, Francoise. "Novel synthesis of branched vinyl polymers." Thesis, University of Strathclyde, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273442.

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25

Graham, Susan Mary. "Novel synthesis of branched vinyl polymers." Thesis, University of Strathclyde, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415302.

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26

Ogilvy, Norman. "Vinyl chloride precipitation polymerisation : charge effects." Thesis, University of Edinburgh, 1985. http://hdl.handle.net/1842/11229.

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27

Dawkins, David Anthony. "Asymmetric synthesis using chiral vinyl ethers." Thesis, University of Leicester, 1992. http://hdl.handle.net/2381/33644.

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Using chiral alcohol precursors, a number of chiral vinyl ethers were prepared by mercuric acetate-catalysed transetherification with butyl vinyl ether. a-Lithiation of (1R)-menthyl vinyl ether was unsuccessful under a variety of conditions. (1S)-(Menthylthio)ethene was prepared from (1S)-menthanethiol but deprotonation was not possible as the thioether was found to decompose rapidly at room temperature. The deprotonation of (R)-phenethyl vinyl ether, (S)-l-(2-naphthyl)-l-ethyl vinyl ether and (S)-l-phenyl-1-butyl vinyl ether and attempted reaction with benzaldehyde yielded none of the a-alkyl
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28

Hong, Jin-Who. "Spectroscopic studies of poly(vinyl fluoride)." Case Western Reserve University School of Graduate Studies / OhioLINK, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=case1055351497.

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29

Dorobantu, Ioana-Miruna. "Vinyl chloride polymerization in microdroplet reactor." Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0037/document.

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La polymérisation du chlorure de vinyle est une réaction très fréquente dans l’industrie des polymères, conduisant à l’obtention d’un matériau plastique très commun, connu sous le nom de PVC (polychlorure de vinyle). Ses applications concernent principalement l’industrie des constructions néanmoins d’autres domaines sont également touchés. La complexité de ce procédé de polymérisation est due à la nature toxique du monomère, à la maitrise du transfert de chaleur ou au maintien de l’agitation. Le control de ces variables de procédé influence de manière directe les caractéristiques finales du pr
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30

De, Bruyn Hank. "The Emulsion Polymerization of Vinyl Acetate." Thesis, The University of Sydney, 1999. http://hdl.handle.net/2123/381.

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Abstract This work investigates the kinetics of the emulsion polymerization of vinyl acetate. Several aspects of this system have been clarified, including the induced decomposition of persulfate, retardation by oxygen and entry by, and analysis of, the aqueous phase oligomeric radicals. It has been shown that the retardation period observed in the emulsion polymerization of VAc can be explained by the effect of traces of oxygen (< 10-6 M) on the entry efficiency of the initiator-derived aqueous-phase oligomeric radicals. Comparison of rates of polymerization in V and persulfate -init
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31

De, Bruyn Hank. "The Emulsion Polymerization of Vinyl Acetate." University of Sydney, Chemistry, 1999. http://hdl.handle.net/2123/381.

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Abstract This work investigates the kinetics of the emulsion polymerization of vinyl acetate. Several aspects of this system have been clarified, including the induced decomposition of persulfate, retardation by oxygen and entry by, and analysis of, the aqueous phase oligomeric radicals. It has been shown that the retardation period observed in the emulsion polymerization of VAc can be explained by the effect of traces of oxygen (< 10-6 M) on the entry efficiency of the initiator-derived aqueous-phase oligomeric radicals. Comparison of rates of polymerization in V and persulfate -init
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32

Gestoso, Souto Patricia. "Orientation study of poly(vinyl phenol)/poly(vinyl methyl ether) blends by infrared dichroism and molecular dynamics." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ65420.pdf.

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33

Kim, Young-Min MacGregor John Frederick. "Photopolymerization of cycloaliphatic epoxide and vinyl ether /." *McMaster only, 2005.

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34

Walmsley, P. G. S. "Surface characteristics of vinyl polysiloxane impression materials /." Title page, summary and contents only, 1991. http://web4.library.adelaide.edu.au/theses/09DM/09dmw216.pdf.

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35

Vessey, Jonathan Dennis. "Hydride, alkene and vinyl complexes of ruthenium." Thesis, University of York, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.483971.

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36

Clough, Norman E. "Thermodynamics of ethylene-vinyl acetate copolymer blends." Thesis, Durham University, 1994. http://etheses.dur.ac.uk/5489/.

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The purpose of this study was to characterise the miscibility of several poly(ethylene-co-vinyl acetate), EVA, based polymer blends. EVA has many industrial applications and is often present as one of several polymeric components. Consequently, there is considerable interest in the thermodynamics of these blend systems. The thermodynamics of these blends was studied using several techniques: differential scanning calorimetry; phase contrast optical microscopy; small angle neutron scattering and wide angle X-ray scattering. Characterisation was also to include assessing the relative enthalpic a
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37

Grainger, Richard Sheridan. "Cycloaddition reactions of C2-symmetric vinyl sulfoxides." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387754.

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38

Sham, C. K. "Studies of poly (vinyl chloride)/polyacrylate blends." Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/37850.

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39

Weidner, Craig. "Yield improvement efforts in vinyl siding production." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/28167.

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40

Tongcher, Oychai. "Novel routes to stereoregular poly(vinyl acetate)." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620688.

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41

House, Stewart Nicholas. "Studies on chiral allenyl and vinyl anions." Thesis, University of Leicester, 1989. http://hdl.handle.net/2381/33738.

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42

Cha, Won-ill. "Physicochemical studies on poly (vinyl alcohol) hydrogels." Kyoto University, 1994. http://hdl.handle.net/2433/168897.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・論文博士<br>博士(工学)<br>乙第8528号<br>論工博第2849号<br>新制||工||958(附属図書館)<br>UT51-94-J257<br>(主査)教授 筏 義人, 教授 升田 利史郎, 教授 池内 健<br>学位規則第4条第2項該当
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43

Roy, Monali. "Synthesis and characterisation of vinyl block copolymers." Thesis, Aston University, 1995. http://publications.aston.ac.uk/9678/.

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A study has been made of the anionic polymerisation of methyl methacrylate using butyllithium and polystyryl lithium as initiators and the effects of lithium chloride and aluminium alkyls on the molecular weight and molecular weight distributions. Diblock copolymers of styrene-b-methyl methacrylate were synthesised at -78oC in THF in the presence of lithium chloride, and at ambient temperatures in toluene in the presence of aluminium alkyls. Studies in the presence of lithium chloride showed that the polymerisation was difficult to control; there was no conclusive evidence of a living system a
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44

Shah, Apoorva P. "Moisture diffusion through vinyl ester/clay nanocomposites." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=2189.

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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains xii, 147 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 97-100).
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45

Guo, Qin. "Synthesis and oxidation of vinyl stannyl sulfides." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/187512.

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The alpha-tin effect in which a C-Sn bond adjacent to a thioether interacts with the sulfur 3p lone pair orbital was found in saturated thioethers and results in a lowering of the oxidation potentials of these compounds. From the electrochemical oxidation potentials found in this study the alpha-tin effect is also present in vinyl sulfides. The geometry of the compounds is the key factor in determining the overlap of the sulfur 3p lone pair orbital with the filled C-Sn bond which results in decreasing oxidation potentials. The change in oxidation potentials of disubstituted stannylated or sily
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46

Zaikov, Vadim Guennadievich. "A study of poly(vinyl chloride) microstructure." W&M ScholarWorks, 1997. https://scholarworks.wm.edu/etd/1539623916.

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High-field {dollar}\sp{lcub}13{rcub}{dollar}C and {dollar}\sp1{dollar}H NMR spectroscopies were used to investigate some unusual features of the molecular microstructure of poly(vinyl chloride) (PVC).;Several model monochloroalkenes were synthesized in order to determine {dollar}\sp{lcub}13{rcub}{dollar}C shift increments for the replacement of H by Cl at positions that are near an isolated internal double bond. These increments then were used to predict the {dollar}\sp{lcub}13{rcub}{dollar}C shifts of the internal allylic chloride structure in PVC. The predictions were not satisfactory, becau
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47

Ohgi, Hiroyuki. "Studies on Synthesis and Physical Properties of Highly Isotactic Poly(vinyl alcohol) Derived from Poly(tert-butyl vinyl ether)." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/57290.

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48

Wang, Chao. "Oxydation catalytique des composés organiques volatils à l’aide de catalyseurs de type oxyde." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1332.

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Dans ce travail de recherche, des oxydes mixtes dopés par des métaux nobles ont été préparés et mis en œuvre dans la réaction d'oxydation catalytique du chlorure de vinyle (VC). Les catalyseurs d'oxyde composite de Co-Ce ont été préparés par des procédés sol-gel et testés pour l'activité d'oxydation du VC. L'analyse XPS a certifié que l'introduction de Ce favorisait la présence d'espèces de Co2 + et de Ce3 +, ce qui modifie l'environnement de coordination du réseau d'oxygène et génère plus de vacations d'oxygène. Les oxydes de cobalt modifiés par Ru ont été préparés et étudiés pour l'oxydation
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49

Semenzim, Vinícius Ladeia [UNESP]. "Pesquisa e desenvolvimento de microesferas de poli(vinil álcool) com alta cristalinidade para utilização em embolização e quimioembolização." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/87529.

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Made available in DSpace on 2014-06-11T19:22:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-06-28Bitstream added on 2014-06-13T18:49:57Z : No. of bitstreams: 1 semenzim_vl_me_sjrp_parcial.pdf: 77605 bytes, checksum: f58727b3dd34087fa9d922f29bac067e (MD5) Bitstreams deleted on 2014-11-14T12:16:55Z: semenzim_vl_me_sjrp_parcial.pdf,Bitstream added on 2014-11-14T12:17:43Z : No. of bitstreams: 1 000696944.pdf: 398566 bytes, checksum: 3105a99c9e8591292c70a0dc96958d0a (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Partículas poliméricas com tamanho e mor
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50

Estur, Jean-François. "Procédé de transformation directe du furfural en vinyl-2furanne." Toulouse, INPT, 1989. http://www.theses.fr/1989INPT013G.

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Apres une mise au point bibliographique sur le vinyl-2 furanne et sa synthese, la production de ce monomere en milieu solide-liquide faiblement hydrate a partir du furfural est realisee en une seule etape. L'etude s'appuie sur la methodologie de la recherche experimentale. Elle a permis de conduire la synthese du stade laboratoire jusqu'a un prepilote de 20 litres tout en conservant sa selectivite et son haut rendement. Une estimation de la cinetique ainsi que de l'enthalpie de la reaction a ete effectuee. L'etude de la separation des constituants du milieu reactionnel par distillation et prec
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