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Tesis sobre el tema "Graft copolymers"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 6 de septiembre de 2023

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1

Tsartolia, E. "Graft copolymers." Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381632.

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2

Holohan, Aidan. "Polyhydroxyether-polydimethylsiloxane graft copolymers." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/46823.

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3

Parker, James. "Graft copolymers of poly(methylphenylsilane)." Thesis, University of Kent, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274357.

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4

Chisholm, M. S. "Copolymers containing polydimethylsiloxane graft chains." Thesis, University of Aberdeen, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374088.

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5

Wilson, D. "Polyurethane-polymethyl methacrylate graft copolymers." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47306.

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6

Ding, Wen. "Graft copolymerization of chitosan." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/8510.

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7

Azam, Mohammad. "Synthesis and characterisation of polyethylene graft copolymers." Thesis, Loughborough University, 1992. https://dspace.lboro.ac.uk/2134/27052.

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Graft copolymers based on a non-polar polyethylene backbone and polar poly(methyl methacrylate) (PMMA), poly(phenyl ethyl methacrylate) (PPHETMA) and poly(butyl acrylate) (PBA) side chains were synthesised by non-ionic grafting onto method. Carboxyl terminated prepolymers and hydroxyl group containing backbones were synthesised and characterised separately and then condensed in a common solvent to form a graft copolymer. Carboxyl terminated prepolymers PMMA, PPHETMA and PBA of molar masses in the range of 1400 to 4400 g mol-1 were prepared by free-radical polymerisation using 4, 4-azobis (4-cy

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8

Kee, R. Andrew. "Synthesis and characterization of arborescent graft copolymers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60542.pdf.

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9

McCarthy, Christopher J. "Synthetic routes towards spin probe-grafted copolymers /." Online version of thesis, 1993. http://hdl.handle.net/1850/11890.

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10

York, Gregory A. "Structure-property relationships of multiphase copolymers." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-07102007-142517/.

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11

Khadir, Abderrahim. "Applications and novel syntheses of arborescent graft copolymers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0004/NQ44768.pdf.

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12

Alshuiref, Abubaker. "Synthesis and characterization of urethane-acrylate graft copolymers." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/491.

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13

Branch, Mark G. "Comb graft copolymers : synthesis, micellisation and dispersant behaviour." Thesis, Loughborough University, 1992. https://dspace.lboro.ac.uk/2134/10396.

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Styryl-terminated polystyrene macromonomers have been synthesised by the anionic polymerisation of styrene. Initiation was by sec-butyl lithium; termination involved the addition of diphenylethylene prior to vinyl benzyl chloride. Characterisation of the macromonomers was performed using gel permeation chromatography (GPC) and proton nuclear magnetic resonance spectroscopy (nmr). Novel comb graft copolymers were synthesised by the copolymerisation of the macromonomer with a comonomer. The following comonomers were used: Z-vinylpyridine (Z-VP), 4- vinylpyridine (4-VP) and N-(vinylbenzyl)pyrroli

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14

Xue, Wei. "Studies on zwitterionic hydrogels and cellulose graft copolymers." Thesis, University of Salford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301579.

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15

Horgan, Adrian. "Polystyrene nanoparticles based on block and graft copolymers." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343355.

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16

Sarmouk, Khiredine. "Graft copolymers and polymer electrolytes based on polyethers." Thesis, University of Aberdeen, 1990. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU602307.

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This thesis is concerned with the preparation, characterisation and applications of butyl rubber (BR) with poly(tetrahydrofuran) (PTHF) and polymer electrolytes based on polyethers. The first part of this thesis is concerned with the preparation of rubber-PTHF graft copolymers by a cationic "grafting-from" reaction initiated by silver perchlorate at allylic bromine sites on the rubber. In order to optimise the content of grafted PTHF a series of experiments was carried out, in which reaction variables such as reaction temperature and time, and ratio of silver salt to active Br, were changed sy

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17

Smith, Susan Abenes. "Synthesis and characterization of perfectly alternating segmented copolymers comprised of poly(dimethylsiloxane)s and engineering thermoplastics." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-03022010-020156/.

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18

Baleg, Abd-Almonam. "Synthesis and characterization of graft and block copolymers using hydroboration." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019/494.

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19

Nguyen, Duc Anh. "Cycloalkenyl macromonomers from new multifunctional inimers : a platform for graft, bottle-brush and mikto-arm star copolymers." Thesis, Le Mans, 2016. http://www.theses.fr/2016LEMA1001/document.

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Le sujet de cette thèse concerne l'élaboration de macromonomères, de copolymères greffés et de polymères étoiles de type 'mikto-arm'. De telles architectures macromoléculaires ont été synthétisées par la combinaison de techniques de polymérisation contrôlées/vivantes telles que la polymérisation par ouverture de cycle (par métathèse) (RO(M)P) etde chimie 'click' orthogonales : cycloaddition 1,3-dipolaireazoturealcyne catalysée au cuivre (CuAAC) et thiol-ène.Dans un premier temps, des macromonomères originaux à fonctionnalité polymérisable (oxa)norbornène portant deux chaînes macromoléculaires

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20

Pasche, Stéphanie. "Mechanisms of protein resistance of adsorbed PEG-graft copolymers /." Zürich, 2004. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15712.

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21

Irving, Matthew D. "Synthesis and characterisation of poly(vinyl butyral) graft copolymers." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/11790.

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Graft copolymers based on a poly(vinyl butyral)(PVB) backbone were prepared using a non-ionic grafting onto procedure. Monofunctionalised poly( methyl methacrylate)(PMMA) and poly(phenyl ethyl methacrylate)(PPEMA) were prepared using a matched free radical initiator and chain transfer system of 4,4 '-azobis-4-cyano valeric acid (ACV A) and thioglycollic acid (TGA) respectively. By changing the concentration of TGA, two series of prepolymers having molecular masses from 1400 to 4300 g mor1 were prepared. The carboxylic acid groups at the chain ends of prepolymers were then converted to the corr

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22

Sagoo, P. S. "Vapour transport in natural rubber blends and graft copolymers." Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/37842.

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23

Sutherland, Aimee Celeste. "Organic-inorganic hybrid graft copolymers of polystyrene and polydimethylsiloxane." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/3182.

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Thesis (MSc (Chemistry and Polymer Science))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Hybrid graft copolymers of polystyrene (PSty) and polydimethylsiloxane macromonomers (PDMS) were synthesised. PSty-g-PDMS was synthesised employing the grafting through technique via a conventionally free radical polymerization (FRP) using a polydimethylsiloxane macromonomer. In this series the amount of PDMS incorporated into the copolymer was varied by varying the macromonomer to styrene ratios as well as the length of the PDMS side chain. This allows for the study of the effect that th

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24

Hu, Nan. "Block and Graft Copolymers Containing Carboxylate or Phosphonate Anions." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/70877.

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This dissertation focuses on synthesis and characterization of graft and block copolymers containing carboxylate or phosphonate anions that are potential candidates for biomedical applications such as drug delivery and dental adhesives. Ammonium bisdiethylphosphonate (meth)acrylate and acrylamide phosphonate monomers were synthesized based on aza-Michael addition reactions. Free radical copolymerizations of these monomers with an acrylate-functional poly(ethylene oxide) (PEO) macromonomer produced graft copolymers. Quantitative deprotection of the alkylphosphonate groups afforded graft copoly

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25

Swanson, Nicole. "Polybutadiene Graft Copolymers as Coupling Agents in Rubber Compounding." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1473158881.

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26

Teramoto, Yoshikuni. "Structural Designing and Functionalization of Biodegradable Cellulosic Graft Copolymers." Kyoto University, 2004. http://hdl.handle.net/2433/147753.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第10904号<br>農博第1410号<br>新制||農||890(附属図書館)<br>学位論文||H16||N3915(農学部図書室)<br>UT51-2004-G751<br>京都大学大学院農学研究科森林科学専攻<br>(主査)教授西尾嘉之, 教授中坪文明, 教授松本孝芳<br>学位規則第4条第1項該当

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27

Postma, Almar School of Chemical Engineering &amp Industrial Chemistry UNSW. "Approaches to the synthesis of block and graft copolymers with well defined segment lengths." Awarded by:University of New South Wales. School of Chemical Engineering and Industrial Chemistry, 2005. http://handle.unsw.edu.au/1959.4/32822.

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The synthesis of amine end-functionalised polymers by controlled free radical techniques has been investigated with a focus on methods that provide primary amino end-functionalised polystyrene. The aim of these investigations was to provide precursors to block and graft polyolefins and polyesters by interchain coupling reactions. The approaches investigated involved developing strategies for the synthesis of phthalimido-functional polymers which can be quantitatively deprotected to yield the desired amino-functional polymers. Initially synthesis by atom transfer radical polymerisation (ATRP) w

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28

Lian, Qing. "Structural investigation of a mesogen-chitosan graft copolymer system." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/8598.

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29

Kaufman, Michael Steven. "Radical-mediated modification of polyolefins: investigation of the synthesis of graft copolymers." Thesis, Kingston, Ont. : [s.n.], 2008. http://hdl.handle.net/1974/1201.

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30

Chen, Guangde. "A New Approach to the Synthesis of PVC Graft Copolymers." W&M ScholarWorks, 2005. https://scholarworks.wm.edu/etd/1539626839.

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31

Ma, Yanhui. "Graft copolymer micelles and surface modification with polymer micelles /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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32

Duddington, Philip. "Studies of dispersant behaviour of graft copolymers in non-aqueous media." Thesis, Loughborough University, 1993. https://dspace.lboro.ac.uk/2134/27841.

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Free radical polymerisation with matched initiator and chain transfer agent has been used to produce carboxyl-terminated poly(2-ethylhexyl acrylate) homopolymers of controlled molar mass. These polymers were monofunctional with respect to carboxyl groups. The carboxyl terminated polymers were converted to methacrylate macromonomers via one of two methods. The first route used an acyl chloride intermediate. The second involved an epoxide ring opening reaction. The acyl chloride method gave macromonomers with high functionality (>0.9), whilst the epoxide method gave typical functionalities of 0.

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33

Rizmi, Abdul Cassim Mohamed. "Synthesis, characterisation and properties of some well-defined comb graft copolymers." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/5057/.

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This thesis describes studies directed to the ring opening metathesis polymerisation of macromonomers and mesogenic monomers to produce graft copolymers and side chain liquid crystalline polymers respectively. The necessary background information relevant to the work described in this thesis is presented in chapter-1 and consists of four sections; namely, descriptions of metathesis polymerisation, anionic polymerisation, synthesis of graft copolymers and synthesis of side chain liquid crystalline polymers. The synthesis of the end capping reagent exo-5-norbomene-2- carbonyl chloride is describ

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34

Williams, Rebecca J. "Synthesis and self-assembly of linear and cyclic degradable graft copolymers." Thesis, University of Warwick, 2014. http://wrap.warwick.ac.uk/69964/.

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This thesis explores the use of ring-opening polymerisation (ROP) and reversible addition-fragmentation chain transfer (RAFT) polymerisation to prepare linear and cyclic graft copolymers with a polycarbonate backbone. The solution properties and self-assembly behaviour of these linear and cyclic graft copolymers with hydrophilic side arms is also described. Chapter 1 introduces the polymerisation techniques used in this thesis, namely ROP and RAFT, and provides a review of the self-assembly of polymers that possess a cyclic topology. In Chapter 2, the synthesis and ROP of a novel cyclic carbon

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35

MacDonald, Iain I. "Synthesis, structural and adhesive evaluation of novel graft meth(acrylate) copolymers." Thesis, University of Strathclyde, 2011. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=15334.

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36

Krugel, Gretha. "Synthesis and characterisation of hybrid graft copolymers of polydimethylsiloxane and polymethylmethacrylate." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/2224.

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Thesis (MSc (Chemistry and Polymer Science))--University of Stellenbosch, 2007.<br>Hybrid graft copolymers of polydimethylsiloxane (PDMS) and polymethylmethacrylate (PMMA) were synthesised. PDMS macromonomers were synthesised anionically from the cyclic D3 monomer. This living polymerisation was terminated with a [3- (methacryloxy)propyl]-dimethylchlorosilane terminating agent which resulted in the functionalised macromonomer. These PDMS macromonomers and MMA monomer were copolymerised to form PMMA-g-PDMS hybrid copolymers by conventional free radical reactions. Synthesised and commercia

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37

York, Greg Allen. "TEM/EDXS studies of phase separation in block and graft copolymers." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/80085.

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The relationships between molecular parameters and microdomain formation of a variety of block- and graft-copolymers were studied by Transmission Electron Microscopy (TEM). Molecular variables included chemical composition: dimethyl-, fluoropropyl and diphenyl-siloxane , sulfone styrene, paramethylstyrene, t-butylstyrene, arylester and methyl methacrylate, as well as molecular weight and distribution. Effects of the kinetics of phase-separation were also determined . Thick (approximately lmm) films cast from solvent showed more complete phase separation than either thin (about 10nm) cast films

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38

Breitenkamp, Rebecca Boudreaux. "Oligopeptide-functionalized Graft Copolymers: Synthesis and Applications in Nucleic Acid Delivery." Amherst, Mass. : University of Massachusetts Amherst, 2009. http://scholarworks.umass.edu/open_access_dissertations/5/.

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39

Shah, Jignesh. "Solid phase graff copolymerization of maleic anhydride onto polyethylene and polystyrene /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418062.

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40

Smith, Steven D. "Synthesis of novel siloxane-containing block and graft copolymers by anionic polymerization and the macromonomer technique." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/74770.

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The synthesis of novel well defined graft copolymers is now possible with the recent advent of the macromonomer technique. Copolymers with narrow molecular weight distributions of the backbone as well as the grafts are possible. The anionic alkyl- lithium initiated ring opening polymerization of the hexamethylcyclotrisiloxane has been investigated to prepare polymers of controlled molecular weights and narrow molecular weight distributions. This technique was extended to the preparation of macromonomers and from these macromonomers the synthesis of graft copolymers. These siloxane macromon

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41

Stegmann, Jacobus Christiaan. "RAFT-mediated synthesis of graft copolymers via a thiol-ene addition mechanism." Thesis, Stellenbosch : Stellenbosch University, 2007. http://hdl.handle.net/10019.1/18700.

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Thesis (MSc)--University of Stellenbosch, 2007.<br>ENGLISH ABSTRACT: The main objective of this project was the controlled synthesis of graft copolymers via a thiol-ene addition mechanism. The Reversible Addition-Fragmentation chain Transfer (RAFT) process was used in all polymerization reactions with the aim to achieve a certain degree of control over the molecular weight. Several synthetic steps were required in order to obtain the final graft copolymer and each step was investigated in detail. Firstly, two RAFT agents (cyanovaleric acid dithiobenzoate and dodecyl isobutyric acid trit

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42

Virtanen, Janne. "Self-assembling of thermally responsive block and graft copolymers in aqueous solutions." Helsinki : University of Helsinki, 2002. http://ethesis.helsinki.fi/julkaisut/mat/kemia/vk/virtanen/.

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43

Hoover, James Matthew. "Morphological effects on gas transport through poly(methylmethacrylate)-poly(dimethlysiloxane) graft copolymers and instrumentation for their synthesis and permeability characterization." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/77800.

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During the past few years, studies involving the synthesis, characterization, and structure-property relations of especially well-defined or "model" block and graft copolymers have received increasing interest among academic and industrial communities. The well-defined nature of such polymers makes them ideal subjects for both fundamental studies and specialty polymer applications. This study addresses the synthesis and characterization of well-defined block and graft copolymers through the use of reactor systems and permeability instrumentation designed specifically for this purpose. The en

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44

Hudda, Laila B. "Origin of limiting conversion phenomenon in alkyd/acrylate graft copolymerization systems." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/10960.

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45

Basson, Neil. "Free volume of electrospun organic-inorganic copolymers." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86676.

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Thesis (MSc)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Two series of amphiphilic, organic-inorganic graft copolymers of poly(methyl methacrylate) and poly(dimethylsiloxane) (PMMA-graft-PDMS), as well as poly(acrylonitrile) and poly(dimethylsiloxane) (PAN-graft-PDMS), were synthesized via conventional free radical copolymerization using the ―grafting through‖ technique. In both series the PDMS macromonomer content varied from 5 wt.% - 25 wt.% and different graft lengths of 1000 g/mol and 5000 g/mol were used. A gradient elution profile was developed to monitor the removal of th

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46

Sheridan, Matthew Stanley. "Well defined graft copolymers and end functional materials: synthesis, characterization and adhesion studies." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/40414.

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47

Miller, Aline Fiona. "Organisation and dynamics of well-defined graft copolymers at the air-water interface." Thesis, Durham University, 2000. http://etheses.dur.ac.uk/4226/.

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Novel amphiphilic graft copolymers with a backbone of poly(norbornene) (PNB) with poly(ethylene oxide) (PEO) grafts have been synthesised by a combination of ring opening metathesis and anionic polymerisation methods. The polymer has been prepared with hydrogenous and deuterated grafts and with grafts of different degrees of polymerisation. These graft copolymers spread at the air-water and air-PEO solution interface forming thin films and their organisation and dynamic behaviour is discussed. Monolayer behaviour was characterised from surface pressure isotherms and it was demonstrated that th

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48

Fleet, Reda. "RAFT mediated polysaccharide copolymers." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/1025.

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49

Wilson, Leslie Hoipkemeier. "Bioresponse to polymeric substrates effect of surface energy, modulus, topography, and surface graft copolymers /." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011624.

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50

Nguyen, Sophie. "Synthesis of graft copolymers based on poly([R]-3-hydroxybutyrate) for orthopaedic surgery purposes." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85631.

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Graft copolymers using biodegradable and biocompatible bacterial poly([ R]-3-hydroxybutyrate) blocks were synthesized and tested as biomaterial candidates for orthopaedic surgery applications. Low molecular weight poly([ R]-3-hydroxyalkanoates), namely poly([R]-3-hydroxybutyrate), poly([R]-3-hydroxyvalerate), and their copolymers poly([ R]-3-hydroxybutyrate-co-[R]-3-hydroxyvalerate), were prepared by thermal degradation in the melt at 190°C. The chemical composition of the oligomers was well-defined, featuring the same repeat unit as their high molecular weight analogues, a carboxylic

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