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1

Ali, Mir Mukkaram Stöver Harald D. H. "Polymer capsules by living radical polymerization /." *McMaster only, 2004.

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2

Terashima, Takaya. "Multifunctional designer catalysts via living radical polymerization." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/136272.

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3

Iida, Kazunori. "Organotellurium and organostibine mediated living radical polymerization." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/144038.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第12354号<br>工博第2683号<br>新制||工||1379(附属図書館)<br>24190<br>UT51-2006-J346<br>京都大学大学院工学研究科合成・生物化学専攻<br>(主査)教授 吉田 潤一, 教授 澤本 光男, 教授 大嶌 幸一郎<br>学位規則第4条第1項該当
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4

Fujimura, Kojiro. "“Concerted Redox” Catalysis in Living Radical Polymerization." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215571.

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5

Xie, Min. "Nitroxide-mediated living radical styrene polymerization in miniemulsion." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0020/MQ54494.pdf.

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6

Yoshikawa, Chiaki. "Fundamental and applied studies on living radical polymerization." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/144033.

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7

Kotani, Yuzo. "LIVING RADICAL POLYMERIZATION OF STYRENE BY TRANSITION METAL CATALYSTS." Kyoto University, 2000. http://hdl.handle.net/2433/180982.

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8

Aran, Bengi. "Polymerization And Characterization Of Methylmethacrylate By Atom Transfer Radical Polymerization." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605042/index.pdf.

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In this work, methylmethacrylate, MMA was polymerized by ATRP method to obtain low molecular weight living polymers. The initiator was p-toluenesulfonylchloride and catalyst ligand complex system were CuCl-4,4&rsquo<br>dimethyl 2,2&rsquo<br>bipyridine. Polymers with controlled molecular weight were obtained. The polymer chains were shown by NMR investigation to be mostly syndiotactic. The molecular weight and molecular weight distribution of some polymer samples were measured by GPC method. The K and a constants in [h]=K Ma equation were measured as 9.13x10-5 and 0.74, respectively. FT-IR a
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9

Ando, Tsuyoshi. "DESIGN AND MECHANISM OF TRANSITION METAL-MEDIATED LIVING RADICAL POLYMERIZATION." Kyoto University, 2000. http://hdl.handle.net/2433/180981.

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10

Simms, Ryan W. "Living/controlled Polymerization Conducted in Aqueous Based Systems." Thesis, Kingston, Ont. : [s.n.], 2007. http://hdl.handle.net/1974/700.

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11

Nishizawa, Keita. "Environmentally Benign Metal-Catalyzed Living Radical Polymerization:Polymerization in Water and Iron Catalysis." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215960.

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12

Koh, Kyoungmoo. "Precision design of organic/inorganic hybrid materials by living radical polymerization." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144932.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第11588号<br>工博第2534号<br>新制||工||1344(附属図書館)<br>23231<br>UT51-2005-D337<br>京都大学大学院工学研究科高分子化学専攻<br>(主査)教授 福田 猛, 教授 伊藤 紳三郎, 教授 金谷 利治<br>学位規則第4条第1項該当
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13

Zwaneveld, Nikolas Anton Amadeus Chemical Engineering &amp Industrial Chemistry UNSW. "Surface grafting of polymers via living radical polymerization techniques; polymeric supports for combinatorial chemistry." Awarded by:University of New South Wales. Chemical Engineering and Industrial Chemistry, 2006. http://handle.unsw.edu.au/1959.4/33361.

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The use of living radical polymerization methods has shown significant potential to control grafting of polymers from inert polymeric substrates. The objective of this thesis is to create advanced substrates for use in combinatorial chemistry applications through the use of g-radiation as a radical source, and the use of RAFT, ATRP and RATRP living radical techniques to control grafting polymerization. The substrates grafted were polypropylene SynPhase lanterns from Mimotopes and are intended to be used as supports for combinatorial chemistry. ATRP was used to graft polymers to SynPhase lante
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14

Paeth, Matthew S. "Copper Catalysis: Perfluoroalkylation and Atom Transfer Radical Polymerization." Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1632226983121513.

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15

Elkins, Casey Lynn. "Living Polymerization for the Introduction of Tailored Hydrogen Bonding." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28008.

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In an effort to synthesize macromolecules comprising both covalent and non-covalent bonding to tune ultimate physical properties, a variety of methodologies and functionalization strategies were employed. First, protected functional initiation, namely 3-[(N-benzyl-N-methyl)amino]-1-propyllithium and 3-(t-butyldimethylsilyloxy)-1-propyllithium, in living anionic polymerization of isoprene was used to yield well-defined chain end functional macromolecules. Using both initiating systems, polymers with good molar mass control and narrow molar mass distributions were obtained and well-defined cha
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16

Çakir, Pinar. "Molecularly imprinted polymer nanostructures by controlled / living radical polymerization with multi-iniferters." Compiègne, 2012. http://www.theses.fr/2012COMP2018.

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Les polymères à empreintes moléculaires (MIPs) sont des matériaux synthétiques contenant des cavités capables de reconnaître spécifiquement une molécule cible. Ils se présentent comme une alternative intéressante face aux anticorps biologiques en raison de leur meilleure stabilité chimique et physique, leur meilleure disponibilité et leur moindre coût. Traditionnellement, les MIPs sont synthétisés par polymérisation de monolithes, qui sont ensuite broyés mécaniquement, engendrant des particules de taille micrométrique et de formes irrégulières. Durant ces dernières années, de nombreuses techni
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17

Ishio, Muneki. "Design of Active and Versatile Iron(II) Catalysts for Living Radical Polymerization." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120892.

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18

Ejaz, Muhammad. "Controlled Surface Grafting of Well-Defined Polymers by Living Radical Polymerization Techniques." 京都大学 (Kyoto University), 2001. http://hdl.handle.net/2433/150698.

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19

Krivorotova, Tatjana. "Synthesis of polyelectrolytes contaiting poly(ethylene oxide) side chains by living radical polymerization." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100915_162344-10990.

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The main goal of this work was to synthesize polyelectrolyte brushes containing poly(ethylene oxide) side chains by living polymerization. Brush-like macromolecules are unique polymer molecules whose conformation and physical properties are controlled by steric repulsion of densely grafted side chains. Molecules can be either flexible or stiff, depending on the grafting density and the length of the side chains. Polymerization of macromonomers is one of the most useful ways to prepare brush copolymers. However, with the macromonomer method, the distribution of the spacing of the side chains ca
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20

Skene, William G. "Investigation of nitroxide-mediated thermal and photochemical reactions of living free radical polymerization." Thesis, University of Ottawa (Canada), 2002. http://hdl.handle.net/10393/6351.

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The work presented in this thesis deals primarily with living free radical polymerization (LFRP). Two main specific areas of this process have been studied; thermal and photochemical reaction sequences. Stoichiometric unimolecular initiators were found to be ideal probes for studying the reactions involved in the LFRP process. The bond dissociation energy (BDE) of the labile C-O bond of the alkoxyamine initiators was found to be ca. 28 kcal/mol and is dependent on the resulting carbon centered radical produced upon thermal decomposition. Lower activation energies were measured for more stable
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21

Bompart, Marc. "Molecularly imprinted polymers and nano-composites by free radical and controlled/living radical polymerization : applications in optical sensors." Compiègne, 2010. http://www.theses.fr/2010COMP1870.

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Cette thèse est organisée en trois chapitres basés sur trois publications et deux manuscrits en cours de soumission. Les polymères à empreintes moléculaires (MIP) sont des récepteurs produits à façon qui sont obtenues par polymérisation en présence de molécules modèles. Le premier papier décrit l'utilisation de la spectroscopie Raman pour la détection et la quantification de molécules modèles au sein d'une particule unique de polymères a empreintes moléculaires de taille micrométrique. Les particules de polymères ont eté imprimées avec comme molécules modèles S-propranolol. Des particules de t
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22

Hsu, Shu-Yao. "Fabrication of Well-Defined Architectures of Ultrahigh-Molecular-Weight Polymers by Living Radical Polymerization." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215574.

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23

Russum, James. "Controlled Radical Polymerizations in Miniemulsions: Advances in the Use of RAFT." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-10112005-105314/.

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Thesis (Ph. D.)--Chemical and Biomolecular Engineering, Georgia Institute of Technology, 2006.<br>Jones, Christopher, Committee Chair ; Schork, F. Joseph, Committee Co-Chair ; Weck, Marcus, Committee Member ; Meredith, Carson, Committee Member ; Agrawal, Pradeep, Committee Member.
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24

Chaffey-Millar, Hugh William Chemical Sciences &amp Engineering Faculty of Engineering UNSW. "An experimental and computational study of two state of the art living free radical polymerisation techniques." Awarded by:University of New South Wales. Chemical Sciences & Engineering, 2008. http://handle.unsw.edu.au/1959.4/41421.

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This thesis describes the research conducted by t he author in completion of a Doctor of Philosophy in the Centre for Advanced Macromolecular Design(CAMD), Univcrsity of New South Wales (UNSW) , Sydney, Australia; under the supervision of Professor Christopher Barner-Kowollik and Doctor Michelle L. Coote (Australian National University). The research has led to the creation of new knowledge in the fields of free radical polymerisation and chemical kinetics. Research was conducted in two main thrusts: (1) investigation into the governing kinetic processes behind star polymer synthesis via wha
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25

Vargun, Elif. "Living Radical Polymerization Of Hydroxyethyl Methacrylate And Its Block Copolymerization With Poly(dimethyl Siloxane) Macroazoinitiator." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610605/index.pdf.

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Hydrophilic poly(2-hydroxyethyl methacrylate), PHEMA, and hydrophobic poly(dimethyl siloxane), PDMS, segments containing copolymers have been widely used as a biomaterial. These amphiphilic copolymers also used as an emulsifying agent in polymer solutions and compatibilizer in polymer blends. In this case, solution polymerizations of HEMA by radiation, ATRP and RAFT methods were studied. The thermal degradation mechanism of PHEMA, which was prepared in aqueous solution by gamma radiation technique, was studied in detail. The DSC, TGA and Mass Spectroscopy analyses revealed that the degradation
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26

Saoud, Fozi. "Superparamagnetic nanoparticles for synthesis and purification of polymers prepared via controlled/"living" radical polymerization (CLRP)." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/3998.

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Thesis (PhD (Chemistry and Polymer Science))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Living chains prepared by RAFT polymerization and NMP reactions using Z-carboxylate and Z-phosphate RAFT agents, and X-phosphate NMP initiators, were efficiently attached to the surface of magnetic nanoparticles (MNPs) and used for the separation of dead chains formed in these polymerization reactions prior to the attachment of the RAFT agents and NMP initiators to the surface of MNPs. All the living chains that attach selectively to the surface of MNPs contained RAFT or NMP functionalities, h
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27

Baek, Kyung-youl. "Synthesis, Characterization, and Functions of Multi-Armed Star Polymers by Metal-Catalyzed Living Radical Polymerization." 京都大学 (Kyoto University), 2002. http://hdl.handle.net/2433/149816.

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28

Huang, Yun. "Synthesis of Novel Polymer-brush-afforded Hybrid Particles for Well-organized Assemblies." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/189679.

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29

Kayahara, Eiichi. "Studies on the Precision Control of Polymer Structure Based on Heteroatom-Mediated Living Radical Polymerization Reaction." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/142245.

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30

Nishimori, Kana. "Molecular Design for Precise Sequence Control and Functions of Alternating Copolymers." Doctoral thesis, Kyoto University, 2020. http://hdl.handle.net/2433/253306.

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京都大学<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第22470号<br>工博第4731号<br>新制||工||1739(附属図書館)<br>京都大学大学院工学研究科高分子化学専攻<br>(主査)教授 大内 誠, 教授 秋吉 一成, 教授 竹中 幹人<br>学位規則第4条第1項該当<br>Doctor of Philosophy (Engineering)<br>Kyoto University<br>DGAM
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31

Nilsen, Aaron. "The design, synthesis and testing of n-alkoxy amine initiators for nitroxide-mediated 'living' free radical polymerization /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2005. http://uclibs.org/PID/11984.

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32

Kimura, Yoshihiko. "Self-Assembled Polymer Materials : From Amphiphile Design to Nanostructure Control." Kyoto University, 2020. http://hdl.handle.net/2433/259742.

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33

Franco, Ivan Carlos 1976. "Modelagem matematica da polimerização via radical livre controlada usando mecanismo RAFT (transferencia de cadeia reversivel por adição-fragmentação)." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266173.

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Orientador: Liliane Maria Ferrareso Lona<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-07T23:37:08Z (GMT). No. of bitstreams: 1 Franco_IvanCarlos_M.pdf: 1044560 bytes, checksum: 8f4fdd66626d63245a2131f55b09f807 (MD5) Previous issue date: 2007<br>Resumo: Polimerização via radical livre controlada (CRP) tem recebido cada vez mais atenção como uma técnica para produção de polímeros com micro estrutura altamente controlada. Em particular, distribuições de pesos moleculares estreitas são obtidas, com polidisp
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34

Kir, Onur [Verfasser], Wolfgang H. [Akademischer Betreuer] Binder, and Guido [Akademischer Betreuer] Kickelbick. "Surface initiated polymerization of isoprene from silica nano- and glass particles via living anionic and controlled radical polymerization techniques / Onur Kir. Betreuer: Wolfgang H. Binder ; Guido Kickelbick." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2013. http://d-nb.info/1050977734/34.

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35

Ogura, Yusuke. "Tandem Transesterification in Polymer Synthesis: Gradient and Pinpoint‐Functionalized Polymers." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225629.

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36

Lee, Sang-Ho. "Supramolecular Self-Assembly of Well-Defined Polymers:Positional Programming of Complementary Hydrogen Bonds." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/189675.

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37

Ansong, Omari E. "Preparation and Evaluation of Novel Initiators for the Thermally Mild Living and Controlled Free Radical Polymerization of Methacrylates: Potential Application in Dental Composite Resins." Diss., Temple University Libraries, 2008. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/17521.

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Chemistry<br>Ph.D.<br>A number of nitroxide adducts and N-acyloxytrialkylammonium salts were prepared, isolated, characterized and evaluated as initiators for the controlled and living free radical polymerization of methacrylate and dimethacrylate monomers under mildly thermal and photochemical conditions. The initiators and polymerization methods that were developed could potentially be used for improving resins employed in dental applications. Using very easy synthesis strategies, the following nitroxide initiators were prepared in high purity, isolated and characterized: 1-Benzoylper
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38

Černý, Miroslav. "Vinylové předpolymery - metody přípravy a využití." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2012. http://www.nusl.cz/ntk/nusl-216844.

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The theoretical part of this thesis is focused on bulk radical polymerization of styrene, methylmethacrylate, vinyltoluene and paramethylstyrene. It summarizes actual informations about kinetics and performance possibilities of bulk polymerization. Experimental part deals with polystyrene prepolymers preparation by bulk polymerization. The aim is to find optimal conditions for prepolymers preparation. Prepolymers should be usable for subsequent polymerization nearly up to 100% conversion. Conversion values were gravimetrically determined and molecular weights were obtained by viskosity measure
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Bui, Nhat Thi Hong. "Polyhydroxyl and Polyphosphorylcholine functionalized Silica for Hydrophilic interaction liquid Chromatography- Synthesis, characterization and application." Doctoral thesis, Umeå universitet, Kemiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-60600.

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This thesis focuses on the development of new stationary phases for use in hydrophilic interaction liquid chromatography using TRIS-based and phosphorylcholine typed monomers and porous silica particles as starting substrates. In this thesis, several ways of polymerizing highly hydrophilic mono­mers onto pore surfaces of silica supports are described, based on several “grafting from” schemes. “Controlled/living” radical polymerizations including atom transfer radical polymerization (ATRP) and iniferter-mediated polymerization in conjunction with conventional free radical polymerization are dem
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40

Kwak, Yungwan. "Kinetic studies on living radical polymerizations." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/144032.

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41

Lahoud, Isabelle. "Contribution à la détermination de cinétiques de polymérisation radicalaire conventionnelle et RAFT en solution par calorimétrie." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMR029.

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L’essentiel de ce travail de thèse a porté sur l’étude calorimétrique de la polymérisation radicalaire en solution. Les paramètres cinétiques de deux systèmes de polymérisation ont été déterminés : ceux de la polymérisation conventionnelle et ceux de la polymérisation contrôlée par transfert de chaine réversible par addition-fragmentation (RAFT). La méthode d’estimation des paramètres cinétiques est basée sur la comparaison du profil de puissance thermique expérimental libéré lors de la polymérisation et mesuré à l’aide d’un calorimètre réactionnel avec le profil de puissance calculé au moyen
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42

Moreno, Guerra Adrian. "Cu(0) wire-mediated SET-LRP in biphasic systems and development of stimuli cleavable polymers." Doctoral thesis, Universitat Rovira i Virgili, 2019. http://hdl.handle.net/10803/670490.

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La polimerització radicalària controlada catalitzada per Cu(0) es una de les metodologies més importants en l’àmbit de les polimeritzacions radicalàries degut a seva simplicitat i la possibilitat de sintetitzar polímers amb estructures ben definides i arquitectures complexes. En aquesta mateixa línia el desenvolupament de sistemes polimèrics capaços d’encapsular i alliberar fàrmacs es una de les línies de investigació més explotades e investigades en els darrers anys, ja que millorar la solubilitat de fàrmacs hidrofòbics i alliberar-los sota la presencia de certs estímuls biològics segueix sen
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43

Zhang, Wenjing. "Auto-assemblage de copolymères à blocs amphiphiles induit par la polymérisation : vers des édifices polymères à architecture, morphologie et propriétés contrôlées." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10222/document.

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L’objectif principal de ce travail de thèse est de synthétiser par polymérisation RAFT en milieux homogène et hétérogène des copolymères à blocs amphiphiles de structure bien contrôlée. Un procédé simplifié, « ont pot » a donc été développé pour synthétiser ces copolymères et les auto-assembler en particules dans l’eau. Cette méthode dite de « l’auto-assemblage induit par la polymérisation » (PISA) permet de synthétiser en quantité des copolymères à blocs amphiphiles en milieux aqueux sans aucune étape de purification intermédiaire. Dans ce procédé, deux étapes successives sont effectuées dans
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44

Goto, Atsushi. "Kinetic Studies on Living Radical Polymerizations with Particular Reference to Activation Processes." 京都大学 (Kyoto University), 2001. http://hdl.handle.net/2433/77889.

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45

Griveau, Lucie. "Emulsion polymerization in the presence of reactive PEG-based hydrophilic chains for the design of latex particles promoting interactions with cellulose derivatives." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1329/document.

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Dans cette thèse, des particules de polymère fonctionnalisées en surface avec des groupes poly (éthylène glycol) (PEG) ont été synthétisées pour favoriser leur interaction avec les dérivés cellulosique via liaisons hydrogène intermoléculaires. Deux voies de synthèse ont été proposées pour obtenir ses composites cellulose/latex.La première voie est basée sur l'auto-assemblage induit par polymérisation (PISA) pour former des nanoparticules fonctionnalisées avant leur adsorption sur un substrat cellulosique. La PISA tire profit de la formation de copolymères blocs amphiphiles dans l'eau en combin
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46

Hu, Yu-Hsiang, and 胡毓祥. "Investigation of Novel Living Radical Polymerization." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/49729305675873329354.

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博士<br>國立成功大學<br>化學工程學系碩博士班<br>93<br>Abstract Living radical polymerization of vinyl monomer by thiol and lactam as initiator was investigated in this thesis, including the mechanism, reactivity of copolymerization, and thermal degradation behavior. Proton is transferred from thiol to lactam group and forms the inter-medium structure, thiolamide, as the active specie during the initiation step. Propagation reaction, thereby, occurs via monomer insertion from the terminal group of the polymer chain end. Molecular weight can be controlled by the monomer-to-thiol ratio. Lactam in this system acts
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47

Jiang, Jian-Sing, and 江建興. "Living free radical polymerization of styrene." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/95718194831044756910.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>101<br>Reversible addition-fragmentation chain transfer(RAFT) polymerization was investigated.The RAFT agent used dibenzyltrithiocarbonate (DBTTC).13C-NMR、1H-NMR、DSC were used to verify the structure,purity,and melting point of DBTTC.In RAFT polymerization with DBTTC,toluene was used as solvent,and styrene used as monomer.The molecular weight distribution attained is in the range 1.4-1.8 due to solvent and initiator effects at 60℃,70℃,80℃,and 100℃.Using bulk polymerization,the ratio of RAFT agent to initiator was varied,and molecular weight distribution is in the ran
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CHIH-CHIANG, LIN, and 林志強. "Study of Living Free Radical Polymerization Process." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/57586577279394789520.

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碩士<br>國立臺北科技大學<br>有機高分子研究所<br>89<br>The waste tire surface modifications were investigated by living free radical polymerizations. The potential applications were discussed in this research. Polypropylene﹙pp﹚ is a very important polymer for textile and engineering application. In this work, a living free radical graft polymerization was used to modify the surface properties of pp. A block copolymer of styrene and acrylic acid was synthesized by using the nitroxide free radical polymerization. The materials have potential application as compatibilzer in polymer
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49

徐倍崇. "A study on living free radical polymerization." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/38482613671225962010.

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Abstract:
碩士<br>國立臺北科技大學<br>有機高分子研究所<br>92<br>PET is grafted with acrylic acid by living free radical polymerization . The contact angles change from 78∘to 60∘. The chemical reaction is identified by FT-IR . Polyacrylic acid is also grafted with styrene by the same synthetic scheme . On the other hands . ABS is graft with acrylic acid . They have potential applications in compatibilizers for composites.
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50

Chien-Chih, Chen, and 陳建志. "A Study on Living Free Radical Polymerization." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/59778765741776930540.

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