Relevant bibliographies by topics / Photopolymerization / Dissertations / Theses
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Dissertations / Theses on the topic 'Photopolymerization'

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Published: 4 June 2021
Last updated: 25 July 2025

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1

Gunduz, Nazan. "Synthesis and Photopolymerization of Novel Dimethacrylates." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/37025.

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Four potential new monomers were prepared, all of which were structural analogues of BisGMA (2,2-bis(4-(2-hydroxy-3-methacryloxyprop-1-oxy) phenyl)propane). The synthesis of these tetrafunctional dimethacrylate monomers was based on structural modifications of Bis-GMA in the core and the side chain and required a two-step reaction. The first step was propoxylation or ethoxylation of the bisphenols and the second step was the methacrylation of the resulting products. The core structures are designated by Bis-A for isopropylidene and 6F for hexafluoropropyl. The side chain structures were des
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2

Bonneaud, Céline. "Synthesis and Photopolymerization of Novel Perfluoropolyalkylethers." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS063.

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Depuis des années, les perfluoropolyalkyléthers (PFPAEs) ont démontré de multiples facettes. Ils sont utilisés dans de nombreux secteurs et actuellement en recherche dans de multiples secteurs de pointe comme l’imagerie médicale (IRM), les réacteurs microfluidiques, les vitrimères ou encore pour des revêtements haute-performance. Ma thèse s’inscrit dans le cadre du projet européen PhotoFluo. Ce projet est partagé entre trois équipes de recherche : Trinity Western University (Langley, Canada), Politecnico di Torino (Turin, Italie) et l’Ecole Nationale Supérieure de Chimie de Montpellier. Le but
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3

Slopek, Ryan Patrick. "In-situ Monitoring of Photopolymerization Using Microrheology." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7194.

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Photopolymerization is the basis of several multi-million dollar industries including films and coating, inks, adhesives, fiber optics, and biomaterials. The fundamentals of the photopolymerization process, however, are not well understood. As a result, spatial variations of photopolymerization impose significant limitations on applications in which a high spatial resolution is required. To address these issues, microrheology was implemented to study the spatial and temporal effects of free-radical photopolymerization. In this work a photosensitive, acrylate resin was exposed to ultravio
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4

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

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5

Elisseeff, Jennifer Hartt 1973. "Transdermal photopolymerization of hydrogels for tissue engineering." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/84773.

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6

Ficek, Beth Ann Scranton Alec B. "The potential of cationic photopolymerization's long lived active centers." Iowa City : University of Iowa, 2008. http://ir.uiowa.edu/etd/280.

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7

Boddapati, Aparna. "Modeling cure depth during photopolymerization of multifunctional acrylates." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33934.

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The photopolymerization of multifunctional acrylates leads to the formation of a complex and insoluble network due to cross-linking. This characteristic is a useful property for stereolithography applications, where solid parts of the desired shape are cured using a pre-determined energy exposure profile. Traditionally, the required energy exposure is determined using a critical energy--depth of penetration, or Ec--Dp, model. The parameters Ec and Dp, are usually fit to experimental data at a specific resin composition and cure intensity. As a result, since the Ec--Dp model does not explicitly
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8

Xu, Xiaolun. "Integrated Nanoemitters on Glass-based Waveguides by Photopolymerization." Thesis, Troyes, 2020. http://www.theses.fr/2020TROY0026.

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Les nano-émetteurs et les nanosources de lumière sont des éléments essentiels pour les dispositifs photoniques. L'une des principales exigences est la capacité d'intégrer des nano-émetteurs sur des emplacements de puces optiques spécifiques. De nombreuses approches ont été explorées pour la réalisation pratique de dispositifs photoniques évolutifs. Cependant, ces méthodes présentent certaines limites, comme des opérations compliquées, des coûts de fabrication élevés et de multiples étapes de fabrication. Cette thèse vise à explorer la faisabilité de l'intégration de nanoémetteurs basés sur des
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9

Slopek, Ryan Patrick. "In-situ monitoring of the mechanical properties during the photopolymerization of acrylate resins using particle tracking microrheology." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22657.

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Thesis (Ph. D.)--Chemical and Biomolecular Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Dr. Victor Breedveld; Committee Member: Dr. Clifford Henderson; Committee Member: Dr. David Rosen; Committee Member: Dr. Peter Ludovice; Committee Member: Dr. Sai Kumar.
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Lam, Edward. "Synthesis and photochemistry of novel aromatic carbonyl photopolymerization initiators." Thesis, Manchester Metropolitan University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254487.

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11

Kaastrup, Kaja. "Photopolymerization-based signal amplification : mechanistic characterization and practical implementation." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101507.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 124-135).<br>Polymerization-based signal amplification is an approach to biosensing that leverages the amplification inherent to radical polymerization to enhance signal associated with molecular recognition. This versatile technique has been implemented with a number of radical polymerization chemistries, including atom-transfer radical polymerization (ATRP), photopolymerization, reversible addition-fragmentatio
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12

Leigh, Braden Lynn. "Engineering surfaces using photopolymerization to improve cochlear implant materials." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6176.

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Cochlear implants (CIs) help to restore basic auditory function in patients who are deaf or have profound hearing loss. However, CI patients suffer from limited voice and tonal perception due to spatial separation between the stimulating CI electrode and the receptor spiral ganglion neurons (SGNs). Directed regeneration of proximate SGN axons may improve tonal performance and implant fidelity by decreasing the spatial separation between the CI electrode and the neural receptor. Additionally, fibrous scar tissue formation on the surface of implanted electrodes further decreases tonal perception
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13

Barbosa, Valeria do Carmo. "Estudo da fotopolimerização e degradação de um oligomero uretano acrilado alifatico para aplicação em revestimentos para madeira." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267146.

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Orientador: Lucia Helena Innocentini Mei<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-14T08:41:32Z (GMT). No. of bitstreams: 1 Barbosa_ValeriadoCarmo.pdf: 1009354 bytes, checksum: 5a59ac0da1d7f49b216506cc60cdc9e6 (MD5) Previous issue date: 2008<br>Resumo: Vernizes obtidos por tecnologia de cura ultravioleta têm um grande campo de aplicação em revestimentos para madeira, sendo por isto bastante usada na Indústria Moveleira. Além disto, esta tecnologia é hoje importante do ponto de vista ambiental por ser
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Tucker, Lucas J. "Liquid crystalline holography the effect of various additives on photopolymerization /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.

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15

O'Brien, Allison K. "The impact of oxygen on photopolymerization kinetics and polymer structure." Diss., Connect to online resource, 2005. http://wwwlib.umi.com/dissertations/fullcit/3165809.

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NOE', CAMILLA. "Make it greener: Exploring novel biobased materials in photopolymerization processes." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2962960.

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Zhao, Xiayun. "Process planning for thick-film mask projection micro stereolithography." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28097.

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Akgün, Ertan [Verfasser], and J. [Akademischer Betreuer] Hubbuch. "Nanoscale Polymeric Particles via Aerosol-Photopolymerization / Ertan Akgün. Betreuer: J. Hubbuch." Karlsruhe : KIT-Bibliothek, 2015. http://d-nb.info/1067496904/34.

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19

Denmark, Daniel Jonwal. "Photopolymerization Synthesis of Magnetic Nanoparticle Embedded Nanogels for Targeted Biotherapeutic Delivery." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6827.

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Conventional therapeutic techniques treat the patient by delivering a biotherapeutic to the entire body rather than the target tissue. In the case of chemotherapy, the biotherapeutic is a drug that kills healthy and diseased cells indiscriminately which can lead to undesirable side effects. With targeted delivery, biotherapeutics can be delivered directly to the diseased tissue significantly reducing exposure to otherwise healthy tissue. Typical composite delivery devices are minimally composed of a stimuli responsive polymer, such as poly(N-isopropylacrylamide), allowing for triggered release
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Rudraraju, Anirudh V. "Digital data processing and computational design for large area maskless photopolymerization." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/52930.

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Large Area Maskless Photopolymerization (LAMP) is a novel additive manufacturing technology currently being developed at Georgia Tech in collaboration with the University of Michigan at Ann Arbor and PCC Airfoils. It is intended for the fabrication of integrally cored ceramic molds for the investment casting of precision components such as high-pressure turbine blades. This dissertation addresses the digital data processing and computational design needs for this technology. Several data processing schemes like direct slicing, STL slicing, post-processing schemes like error checking, part plac
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21

Nath, Shukantu Dev. "FABRICATION AND PERFORMANCE EVALUATION OF SANDWICH PANELS PRINTED BY VAT PHOTOPOLYMERIZATION." OpenSIUC, 2021. https://opensiuc.lib.siu.edu/theses/2883.

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Sandwich panels serve many purposes in engineering applications. Additive manufacturing opened the door for easy fabrication of the sandwich panels with different core structures. In this study, additive manufacturing technique, experiments, and numerical analysis are combined to evaluate the mechanical properties of sandwich panels with different cellular core structures. The sandwich panels having honeycomb, re-entrant honeycomb, diamond, square core topologies are printed with the vat photopolymerization technique. Uniaxial compression testing is performed to determine the compressive modul
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22

Eom, Ho Seop. "Photopolymerizations of multicomponent epoxide and acrylate/epoxide hybrid systems for controlled kinetics and enhanced material properties." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/2488.

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Cationic photopolymerization of multifunctional epoxides is very useful for efficient cure at room temperature and has been widely used in coatings and adhesives. Despite excellent properties of the final cured polymers, cationic photopolymerizations of epoxides have seen limited application due to slow reactions (relative to acrylates) and brittleness associated with a highly crosslinked, rigid network. To address these issues, two reaction systems were studied in this thesis: photoinitiated cationic copolymerizations of
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23

Ibrahim, Ahmad. "Development of photoinitiating systems for free radical Photopolymerization usable for laser Imaging." Thesis, Mulhouse, 2011. http://www.theses.fr/2011MULH4082.

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Le sujet de thèse sur lequel je travaille depuis trois ans est l’étude et le développement des systèmes photoamorceurs pour des applications holographiques. Ce travail a lieu en collaboration avec l’équipe BMS (Bayer Material Science) de Bayer-Leverkusen (Allemagne). Mes études se sont limitées aux systèmes utilisables avec une source d’irradiation appartenant à la partie visible du spectre électromagnétique de la lumière (400 nm – 700 nm).Parmi les différents types des réactions de polymérisation, nous avons choisi la polymérisation radicalaire. L’étape cruciale dans cette réaction réside dan
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24

Wutticharoenwong, Kosin. "BIO-BASED REACTIVE DILUENTS AND THIOL-ENE PHOTOPOLYMERIZATION FOR ENVIRONMENTALLY BENIGN COATINGS." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1194282497.

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Rathi, Pankaj Jaiprakash. "Theoretical Modeling of Morphology Development in Blends of Semicrystalline Polymers Undergoing Photopolymerization." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1251397199.

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26

Forney, Bradley Steven. "Controlled polymer nanostructure and properties through photopolymerization in lyotropic liquid crystal templates." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/2495.

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Incorporating nanotechnology into polymers has tremendous potential to improve the functionality and performance of polymer materials for use in a wide range of biomedical and industrial applications. This research uses lyotropic liquid crystals (LLCs) to control polymer structure on the nanometer scale in order to improve material properties. The overall goal of this research is to establish fundamental methods of synthesizing polymers with controlled nanostructured architectures in order to understand and utilize useful
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27

Kim, Soon Ki. "Advanced clay nanocomposites based on in situ photopolymerization utilizing novel polymerizable organoclays." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/2917.

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Polymer nanocomposite technology has had significant impact on material design. With the environmental advantages of photopolymerization, a research has recently focused on producing nanocomposites utilizing inexpensive clay particles based on in situ photopolymerization. In this research, novel polymerizable organoclays and thiol-ene photopolymerization have been utilized to develop advanced photopolymer clay nanocomposites and to overcome several limitations in conventional free radical photopolymers. To this end, factors important in nanocomposite processes such as monomer composition, clay
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Haraldsson, Klas Tommy. "Fabrication of polymeric microfluidic devices via photocurable liquid monomers." Doctoral thesis, Stockholm : Fibre and Polymer Technology, Department of Chemical Engineering and Technology, Royal Institute of Technology (KTH), 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-466.

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29

Ajiboye, Gbenga I. "Industrially relevant epoxy-acrylate hybrid resin photopolymerizations." Thesis, University of Iowa, 2012. https://ir.uiowa.edu/etd/3558.

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Photopolymerization of epoxy-acrylate hybrid resins takes advantages of inherent properties present in the free-radical and cationic reactions to reduce oxygen inhibition problems that plague free-radical reactions. Similarly, the combined reaction mechanisms reduce moisture sensitivity of the cationic reactions. Despite the advantages of epoxy-acrylate hybrid resins, problems persist that need to be addressed. For example, low conversion and polymerization rate of the epoxides are a problem, because the fast acrylate conversion prevents the epoxide from reaching high conversion. Controlling p
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30

Conrad, Matthew. "Experimental investigations and theoretical modeling of large area maskless photopolymerization with grayscale exposure." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/45965.

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Large Area Maskless Photopolymerization (LAMP) is a technology being developed to fabricate integrally-cored ceramic molds for the investment casting of turbine airfoils. In LAMP, ultraviolet (UV) light in the form of bitmap images is projected from a spatial light modulator (SLM) onto a photocurable ceramic material system (PCMS). Exposed and unexposed regions are determined through black and white portions of the bitmaps, respectively. UV light induces photopolymerization and the formation of an insoluble solidified network. Three-dimensional structures are built layer-by-layer through seque
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31

De, Paz-Simon Héloise. "Sol-gel photopolymerization of inorganic precursors and application for mesoporous silica films elaboration." Thesis, Mulhouse, 2013. http://www.theses.fr/2013MULH6112/document.

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Alors que le procédé sol-gel a été fortement étudié il existe peu d’études concernant le procédé sol-gel photoinduit. Le principe repose sur la libération in situ d’espèces acides ou basiques photogénérées capables d’amorcer les réactions d’hydrolyse et de condensation caractéristiques du procédé sol-gel. L’alternative photoinduite est particulièrement adaptée pour préparer des films minces et possède de nombreux avantages tel qu’une formulation de départ stable, sans solvant et photolatente ainsi que des vitesses de réactions plus importantes. À partir de précurseurs inorganiques simples, nou
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32

Morris, Jason C. "Photosensitive alkoxyamines: Synthesis and photochemical studies for potential application in nitroxide-mediated photopolymerization." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/110527/1/Jason_Morris_Thesis.pdf.

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Photopolymerization has increasing application in high tech domains such as microelectronics, laser direct imaging technology and 3D printing. Continued development of these technologies requires increasing control over the spatial resolution of polymer architectures, as well as the ability to tailor polymer properties to a specific application. Controlled photopolymerization methodologies, such as nitroxide-mediated photopolymerization, have demonstrated important proof of concept advances to polymer architectures and properties. In order to advance this burgeoning methodology, this thesis in
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CAPRIOLI, MATTEO. "Development and fabrication of self-healing hydrogels via vat photopolymerization 3D printing technology." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2971993.

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34

Morris, Jason. "Photosensitive alkoxyamines : synthesis and photochemical studies for potential application in nitroxide-mediated photopolymerization." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4746.

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Les travaux décrits dans cette thèse portent sur la synthèse ainsi que l’étude physico-chimique et photo-chimique de plusieurs séries de nitroxydes et d’alcoxyamines photosensibles fonctionnalisées par des chromophores de type benzophénone, fluorènone, anthraquinone, phényle, naphtyle et anthracényle. En particulier, nous avons focalisé notre effort sur l’introduction de ces chromophores sur un nitroxyde dérivé d’un noyau isoindoline connu pour sa stabilité photo-chimique. L’étude de la photo-dissociation des alcoxyamines préparées a ensuite été conduite par résonance paramagnétique électroniq
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Morris, Jason. "Photosensitive alkoxyamines : synthesis and photochemical studies for potential application in nitroxide-mediated photopolymerization." Electronic Thesis or Diss., Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4746.

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Les travaux décrits dans cette thèse portent sur la synthèse ainsi que l’étude physico-chimique et photo-chimique de plusieurs séries de nitroxydes et d’alcoxyamines photosensibles fonctionnalisées par des chromophores de type benzophénone, fluorènone, anthraquinone, phényle, naphtyle et anthracényle. En particulier, nous avons focalisé notre effort sur l’introduction de ces chromophores sur un nitroxyde dérivé d’un noyau isoindoline connu pour sa stabilité photo-chimique. L’étude de la photo-dissociation des alcoxyamines préparées a ensuite été conduite par résonance paramagnétique électroniq
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36

Júnior, Marco Antonio Horn. "Efeito da mistura de fotoiniciadores acilfosfínicos e canforquinona na eficiência da polimerização." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/75/75131/tde-18042008-101221/.

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Foi estudado o processo de fotopolimerização iniciado através de misturas dos fotoiniciadores, acilfosfínicos (MAPO e BAPO), com canforquinona (CQ). Também foi investigada a existência de um possível efeito sinérgico durante a fotoiniciação. A eficiência de polimerização das duas misturas, MAPO/CQ e BAPO/CQ, foi determinada por actinometria. A fotodilatometria foi a técnica utilizada para o acompanhamento das cinéticas de polimerização. A adição do co-iniciador EDB não apresentou efeito nas velocidades de polimerização iniciadas pelos fotoiniciadores acilfosfínicos. Do ponto de vista do rendim
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Koch, Horst, André Laschewsky, Helmut Ringsdorf, and Kang Teng. "Photodimerization and photopolymerization of amphiphilic cinnamic acid derivatives in oriented monolayers, vesicles and solution." Universität Potsdam, 1986. http://opus.kobv.de/ubp/volltexte/2008/1711/.

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Cinnamic acid moieties were incorporated into amphiphilic compounds containing one and two alkyl chains. These lipid-like compounds with photoreactive units undergo self-organization to form monolayers at the gas-water interface and bilayer structures (vesicles) in aqueous solutions. The photoreaction of the cinnamic acid moiety induced by 254 nm UV light was investigated in the crystalline state, in monolayers, in vesicles and in solution in organic solvents. The single-chain amphiphiles undergo dimerization to yield photoproducts with twice the molecular weight of the corresponding monomers
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Rahane, Santosh Bhagwat. "Kinetics of surface-initiated photoiniferter-mediated photopolymerization and synthesis of stimuli-responsive polymer brushes." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1181668711/.

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Chartrain, Nicholas. "Designing Scaffolds for Directed Cell Response in Tissue Engineering Scaffolds Fabricated by Vat Photopolymerization." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/95939.

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Vat photopolymerization (VP) is an additive manufacturing (AM) technology that permits the fabrication of parts with complex geometries and feature sizes as small as a few microns. These attributes make VP an attractive option for the fabrication of scaffolds for tissue engineering. However, there are few printable materials with low cytotoxicity that encourage cellular adhesion. In addition, these resins are not readily available and must be synthesized. A novel resin based on 2-acrylamido-2-methyl-1-propanesulfonic acid (NaAMPS) and poly(ethylene glycol) diacrylate (PEGDA) was formulated and
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Kim, Namil. "Photoisomerization - And Photopolymerization-Induced Phase Transitions in Mixtures of Photoresponsive Chromophores and Reactive Mesogens." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1280254227.

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Dillman, Brian F. "The kinetics and physical properties of epoxides, acrylates, and hybrid epoxy-acrylate photopolymerization systems." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/2476.

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Photopolymerization, which uses light rather than heat to initiate polymerization, is a facile technique used to fabricate adhesives, protective coatings, thin films, photo-resists, dental restoratives, and other materials. Epoxide monomers, which are polymerized via cationic photoinitiation, have received less attention in fundamental research in comparison to free radical polymerized acrylate monomers. The characterization of propagation mechanisms, network structures, and physical properties is yet lacking. This project
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Chen, Hongshi. "Contribution to Active Probe for SNOM and Nanoscale Light-matter Interaction based on Photopolymerization." Electronic Thesis or Diss., Troyes, 2022. http://www.theses.fr/2022TROY0007.

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La microscopie optique en champ proche à balayage (SNOM) est une technologie d'imagerie optique à haute résolution. L'information associée aux hautes fréquences spatiales du champ proche est associée à une haute résolution spatiale, permettant de dépasser la limite de diffraction. Développer une sonde optique locale efficace reste un sujet clé d'actualité qui est abordé depuis longtemps. La thèse porte sur le développement d'une sonde en champ proche active basée sur une pointe polymère intégrée à l'extrémité d'une fibre optique. Nous avons polymérisé une pointe en polymère sur la surface de l
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Zuo, Xiaoling. "Fluorescent Brighteners in Polymerizations under Visible-light LED : Toward Versatile and High Performance Photoinitiating Systems." Thesis, Mulhouse, 2017. http://www.theses.fr/2017MULH0738/document.

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Le développement d'un nouveau système photo-initiateur 1 photoinitiateur capable d'absorber fortement la lumière dans la région de la lumière visible et de travailler sous irradiation LED a fait des progrès gratifiants. Ici, notamment l'azurant fluorescent en tant que classe de dérivés fluorophores, a été confirmé comme un Pl efficace pour la photopolymérisation radicalaire (FRP), l'un des principaux avantages est qu'ils peuvent travailler efficacement sous l'air, même à faible intensité lumineuse. Lorsqu'ils sont incorporés dans des systèmes photoinitiateurs multicomposants (en présence de se
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Aloui, Faten. "Photopolymérisation de formulations composites : étude de l’évolution des propriétés optiques." Thesis, Rouen, INSA, 2015. http://www.theses.fr/2015ISAM0001/document.

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L’objectif est d’étudier les propriétés optiques de formulations composites et leur évolution durant leur photopolymérisation. Une attention particulière est portée au phénomène de diffusion de la lumière engendré par la présence de charges d’indice de réfraction différent de celui de la matrice organique. Des relations indice-conversion sont établies pour des systèmes non chargés à partir des suivis cinétiques de l’évolution de l’indice de réfraction par réfractométrie et de la conversion par spectrométrie IR réalisés pour différentes compositions, température et intensité du rayonnement. L’é
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Voltarelli, Fernanda Regina. "Avaliação do efeito da indução de polimerização com diferentes fontes de luz e dos meios de envelhecimento sobre a microdureza de cilindros de resina composta." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289118.

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Orientador: Giselle Maria Marchi Baron<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-09T18:39:20Z (GMT). No. of bitstreams: 1 Voltarelli_FernandaRegina_M.pdf: 2059410 bytes, checksum: 22cefbd92cd0c4d2a5e932fba114a277 (MD5) Previous issue date: 2007<br>Resumo: O objetivo deste estudo foi avaliar o efeito do tipo de fonte de luz (Halógena/HAL, Diodos Emissores de Luz/LED, Laser de Argônio/LAS e Arco de Plasma/PAC) e dos meios de envelhecimento sobre a microdureza das superfícies de topo e base de cil
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46

Ferreira, Giovana Chimello. "\"Fotopolimerização iniciada por tioxantona e outros indicadores - Estudos fundamentais e aplicações\"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/75/75131/tde-29012007-112944/.

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A cinética de fotopolimerização do monômero metacrilato de metila (MMA) foi investigada usando o fotoiniciador tioxantona (TX) e o co-iniciador trietilamina (TEA), a fim de elucidar o mecanismo de fotopolimerização. A dilatometria foi usada como técnica para a determinação das cinéticas de polimerização. Determinaram-se os rendimentos quânticos de polimerização. Os estados excitados foram estudados por fluorescência estática para determinar as constantes de supressão de fluorescência pela amina e pelo monômero. Medidas de fotólise por pulso de laser permitiram obter o espectro de absorção trip
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47

Nunes, Margareth Calvo Pessutti. "Avaliação da microdureza e desgaste por escovação simulada de uma resina composta, em função de diferentes fontes de luz e energias de ativação." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/25/25131/tde-20062007-105425/.

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Este estudo in vitro teve como objetivo avaliar comparativamente a microdureza superficial e o desgaste de uma resina composta, FiltekTM Z-250 (3M/ESPE), sob influência de diferentes fontes de luz (LED Ultrablue IS - DMC, LED Ultralume 5 - Ultradent e halógena VIP - BISCO), com variação das densidades de potência (300, 600 e acima de 800mW/cm2) e energia (6, >8, 12, >16, 24, >32 J/cm2). Espécimes retangulares (15 x 5 x 4 mm) foram polimerizados, conforme os fatores de variação, totalizando 15 grupos (n=6). Em seguida receberam acabamento e polimento com lixas de abrasividade decrescente (300,
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48

Heimer, Brandon Walter. "Methylated DNA detection using a high-affinity methyl-CpG binding protein and photopolymerization-based amplification." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98796.

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Thesis: Sc. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 123-132).<br>Methylation at the 5 position of the cytosine base, when followed by guanine (CpG) in the promoter region of a protein-coding gene, is an epigenetic modification that has been shown to be involved in gene silencing. While important for regulating many normal, cellular processes, aberrant DNA methylation has been implicated in the development of human diseases such as cancer. Medical research has begu
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De, Ambroggi Elena Magdalena Verfasser], and Achim [Akademischer Betreuer] [Wixforth. "Acoustic monitoring of photopolymerization in UV curable coatings / Elena Magdalena De Ambroggi. Betreuer: Achim Wixforth." Augsburg : Universität Augsburg, 2012. http://d-nb.info/1077700806/34.

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50

Jean, Chuen-Sheng, and 簡春生. "Photopolymerization of the dicoumarins." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/86969689702311183464.

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碩士<br>國立成功大學<br>化學工程研究所<br>83<br>Eight dicoumarins (3,4) were successfully synthesized from 7-hydroxycoumarin (or 7-hydroxy-4-methylcoumarin) and various dibromoalkanes. Photopolymerization of the dicoumarins under 350nm light gives various corresponding polyethers 5,6. The structures of the coumarin dimer component depend on the length of flexible methylene chain, substituted groups on double bonds, polarity of solvent, and sensitizer used. The structures were cha
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