Academic literature on the topic 'Photopolymerizations'

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Journal articles on the topic "Photopolymerizations"

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Peyrot, Fabienne, Sonia Lajnef, and Davy-Louis Versace. "Electron Paramagnetic Resonance Spin Trapping (EPR–ST) Technique in Photopolymerization Processes." Catalysts 12, no. 7 (2022): 772. http://dx.doi.org/10.3390/catal12070772.

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To face economic issues of the last ten years, free-radical photopolymerization (FRP) has known an impressive enlightenment. Multiple performing photoinitiating systems have been designed to perform photopolymerizations in the visible or near infrared (NIR) range. To fully understand the photochemical mechanisms involved upon light activation and characterize the nature of radicals implied in FRP, electron paramagnetic resonance coupled to the spin trapping (EPR–ST) method represents one of the most valuable techniques. In this context, the principle of EPR–ST and its uses in free-radical phot
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Lang, Margit, Stefan Hirner, Frank Wiesbrock, and Peter Fuchs. "A Review on Modeling Cure Kinetics and Mechanisms of Photopolymerization." Polymers 14, no. 10 (2022): 2074. http://dx.doi.org/10.3390/polym14102074.

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Photopolymerizations, in which the initiation of a chemical-physical reaction occurs by the exposure of photosensitive monomers to a high-intensity light source, have become a well-accepted technology for manufacturing polymers. Providing significant advantages over thermal-initiated polymerizations, including fast and controllable reaction rates, as well as spatial and temporal control over the formation of material, this technology has found a large variety of industrial applications. The reaction mechanisms and kinetics are quite complex as the system moves quickly from a liquid monomer mix
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Jessop, Julie L. P. "A Practical Primer: Raman Spectroscopy for Monitoring of Photopolymerization Systems." Polymers 15, no. 18 (2023): 3835. http://dx.doi.org/10.3390/polym15183835.

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Photopolymerization systems provide compelling advantages for industrial applications due to their fast reaction kinetics, wide selection of monomers for physical property development, and energy-efficient initiation via illumination. These same advantages can present challenges when attempting to monitor these reactions or characterize their resulting polymers; however, Raman spectroscopy can provide the flexibility and resolution needed. In this overview, Raman spectroscopy is compared to common characterization techniques, such as photo-differential scanning calorimetry and infrared spectro
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Reinelt, Sebastian, Monir Tabatabai, Urs Karl Fischer, Norbert Moszner, Andreas Utterodt, and Helmut Ritter. "Investigations of thiol-modified phenol derivatives for the use in thiol–ene photopolymerizations." Beilstein Journal of Organic Chemistry 10 (July 29, 2014): 1733–40. http://dx.doi.org/10.3762/bjoc.10.180.

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Thiol–ene photopolymerizations gain a growing interest in academic research. Coatings and dental restoratives are interesting applications for thiol–ene photopolymerizations due to their unique features. In most studies the relative flexible and hydrophilic ester derivative, namely pentaerythritoltetra(3-mercaptopropionate) (PETMP), is investigated as the thiol component. Thus, in the present study we are encouraged to investigate the performance of more hydrophobic ester-free thiol-modified bis- and trisphenol derivatives in thiol–ene photopolymerizations. For this, six different thiol-modifi
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Elian, Christine, Vlasta Brezová, Pauline Sautrot-Ba, Martin Breza, and Davy-Louis Versace. "Lawsone Derivatives as Efficient Photopolymerizable Initiators for Free-Radical, Cationic Photopolymerizations, and Thiol—Ene Reactions." Polymers 13, no. 12 (2021): 2015. http://dx.doi.org/10.3390/polym13122015.

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Two new photopolymerizable vinyl (2-(allyloxy) 1,4-naphthoquinone, HNQA) and epoxy (2-(oxiran-2yl methoxy) 1,4-naphthoquinone, HNQE) photoinitiators derived from lawsone were designed in this paper. These new photoinitiators can be used as one-component photoinitiating systems for the free-radical photopolymerization of acrylate bio-based monomer without the addition of any co-initiators. As highlighted by the electron paramagnetic resonance (EPR) spin-trapping results, the formation of carbon-centered radicals from an intermolecular H abstraction reaction was evidenced and can act as initiati
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Crivello, James V. "“Kick-Starting” oxetane photopolymerizations." Journal of Polymer Science Part A: Polymer Chemistry 52, no. 20 (2014): 2934–46. http://dx.doi.org/10.1002/pola.27329.

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Lin, Jui-Teng, Jacques Lalevee, and Da-Chun Cheng. "A Critical Review for Synergic Kinetics and Strategies for Enhanced Photopolymerizations for 3D-Printing and Additive Manufacturing." Polymers 13, no. 14 (2021): 2325. http://dx.doi.org/10.3390/polym13142325.

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The synergic features and enhancing strategies for various photopolymerization systems are reviewed by kinetic schemes and the associated measurements. The important topics include (i) photo crosslinking of corneas for the treatment of corneal diseases using UVA-light (365 nm) light and riboflavin as the photosensitizer; (ii) synergic effects by a dual-function enhancer in a three-initiator system; (iii) synergic effects by a three-initiator C/B/A system, with electron-transfer and oxygen-mediated energy-transfer pathways; (iv) copper-complex (G1) photoredox catalyst in G1/Iod/NVK systems for
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Zonca, M. R., B. Falk, and J. V. Crivello. "LED‐Induced Thiol–ene Photopolymerizations." Journal of Macromolecular Science, Part A 41, no. 7 (2004): 741–56. http://dx.doi.org/10.1081/ma-120037340.

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Bowman, Christopher N., and C. Allan Guymon. "Polymerization and Properties of Polymer-Stabilized Ferroelectric Liquid Crystals." MRS Bulletin 22, no. 9 (1997): 15–20. http://dx.doi.org/10.1557/s0883769400033959.

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The following is based on the presentation made by Christopher N. Bowman, recipient of the MRS Outstanding Investigator Award, at the 1997 MRS Spring Meeting.I would like to focus on our recent work involving photopolymerizations of monomers in a liquid-crystalline environment. This work is one of the many aspects of photopolymerizations that we are focusing on at the University of Colorado. In particular this effort concentrates on understanding the influence of a liquid-crystalline medium and monomer segregation on polymerization behavior and polymer structure. These studies are of considera
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Chen, Yu, Xiaoqin Jia, Mengqiang Wang, and Tao Wang. "A synergistic effect of a ferrocenium salt on the diaryliodonium salt-induced visible-light curing of bisphenol-A epoxy resin." RSC Advances 5, no. 42 (2015): 33171–76. http://dx.doi.org/10.1039/c4ra16077k.

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Dissertations / Theses on the topic "Photopolymerizations"

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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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Rosas, Maria Maura Tellez. "Kinetic studies of free radical photopolymerizations with methacrylic monomers." Thesis, Manchester Metropolitan University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262312.

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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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Hoppe, Cynthia Caroline. "Experimental and theoretical investigations of active center generation and mobility in cationic and free-radical photopolymerizations." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/516.

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Photopolymerization is considered an attractive alternative in many industries to traditional polymerization processes. The advantages of photopolymerization over other types of polymerization include elimination of heat sources, faster cure times, and reduction in the use of volatile organic solvents. Despite these environmental and cost-saving advantages, photopolymerizations have several limitations. Light attenuation can be a problem for systems containing pigments or fillers. The radiation source penetrates only to a shallow depth beneath the surface, limiting the thickness of strongly pi
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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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Kitano, Hajime. "Advances In light-induced polymerizations: I. Shadow cure in free radical photopolymerizations, II. Experimental and modeling studies of photoinitiator systems for effective polymerizations with LEDs." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/4866.

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Photopolymerization has become the standard for many coating and printing applications that require rapid curing at room temperature due to its potential to reduce volatile organic compound (VOC) emissions while providing a means for efficient manufacturing processes. These advantages could be useful in a variety of emerging applications, such as anisotropic conductive films (ACF) if photopolymerization could extend into relatively narrow shadow regions which are not directly illuminated, and if visible wavelengths that are not absorbed by polyimide films could be used to trigger the reaction.
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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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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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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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Kim, Young-Min MacGregor John Frederick. "Photopolymerization of cycloaliphatic epoxide and vinyl ether /." *McMaster only, 2005.

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Books on the topic "Photopolymerizations"

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Scranton, Alec B., Christopher N. Bowman, and Robert W. Peiffer, eds. Photopolymerization. American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0673.

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1963-, Scranton Alec B., Bowman Christopher N. 1967-, Peiffer Robert W. 1942-, American Chemical Society. Division of Polymeric Materials: Science and Engineering., and American Chemical Society Meeting, eds. Photopolymerization: Fundamentals and applications. American Chemical Society, 1997.

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Nail, Fatkullin, ed. NMR, 3D analysis, photopolymerization. Springer, 2004.

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Carr, N. A. Photopolymerization of dye-sensitized coatings by laser light. UMIST, 1991.

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1960-, Belfield Kevin, and Crivello James V. 1940-, eds. Photoinitiated polymerization. American Chemical Society, 2003.

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S, Allen Norman, ed. Photopolymerisation and photoimaging science and technology. Elsevier Applied Science, 1989.

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1947-, Fouassier Jean-Pierre, ed. Photochemistry and UV curing: New trends 2006. Research Signpost, 2006.

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Crawford, Gregory Philip. Cross-linked liquid crystalline systems: From rigid polymer networks to elastomers. Taylor & Francis, 2011.

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Kawata, Satoshi, Rainer Kimmich, Nail Fatkullin, Takayuki Ikehara, and Hiroshi Jinnai. NMR · 3D Analysis · Photopolymerization. Springer, 2004.

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NMR 3D Analysis Photopolymerization. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/b12766.

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Book chapters on the topic "Photopolymerizations"

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Crivello, James. "Sensitization of Cationic Photopolymerizations." In Dyes and Chromophores in Polymer Science. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119006671.ch2.

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Coons, L. S., B. Rangarajan, D. Godshall, and Alec B. Scranton. "Photopolymerizations of Vinyl Ester: Glass Fiber Composites." In ACS Symposium Series. American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0673.ch015.

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Kannurpatti, Anandkumar R., Michael D. Goodner, Hyun R. Lee, and Christopher N. Bowman. "Reaction Behavior and Kinetic Modeling Studies of "Living" Radical Photopolymerizations." In ACS Symposium Series. American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0673.ch005.

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Hua, Yujing, and James V. Crivello. "Photosensitization of Onium Salt Initiated Cationic Photopolymerizations by Carbazole Monomers, Polymers, and Oligomers." In ACS Symposium Series. American Chemical Society, 2003. http://dx.doi.org/10.1021/bk-2003-0847.ch019.

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Goodner, Michael D., and Christopher N. Bowman. "Modeling and Experimental Investigation of Light Intensity and Initiator Effects on Solvent-Free Photopolymerizations." In Solvent-Free Polymerizations and Processes. American Chemical Society, 1999. http://dx.doi.org/10.1021/bk-1998-0713.ch014.

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Gooch, Jan W. "Photopolymerization." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_8687.

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Lin, Haiqing. "Photopolymerization." In Encyclopedia of Membranes. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-40872-4_1831-1.

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Mishra, Munmaya, and Biao Duan. "Photopolymerization." In The Essential Handbook of Polymer Terms and Attributes. CRC Press, 2024. http://dx.doi.org/10.1201/9781003161318-131.

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Nassar, Raja, and Weizhong Dai. "Laser Photopolymerization." In Modelling of Microfabrication Systems. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-08792-3_4.

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Gibson, Ian, David Rosen, Brent Stucker, and Mahyar Khorasani. "Vat Photopolymerization." In Additive Manufacturing Technologies. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-56127-7_4.

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Conference papers on the topic "Photopolymerizations"

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Aftab, Jamshed, Izabela Naydenova, and Tatsiana Mikulchyk. "Photopolymerization shrinkage in holographic hybrid sol-gel material." In Holography: Advances and Modern Trends IX, edited by Antonio Fimia, Miroslav Hrabovský, and Izabela Naydenova. SPIE, 2025. https://doi.org/10.1117/12.3056037.

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Shishido, Atsushi. "Two-dimensionally aligned liquid-crystalline polymer coatings designed by patterned photopolymerization." In Liquid Crystals XXVIII, edited by Iam Choon Khoo. SPIE, 2024. http://dx.doi.org/10.1117/12.3027528.

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Yang, Yizhe, Bingshan Liu, Kaixiang Zhang, Xiaodong Liu, and Gong Wang. "Correction of manufacturability based on the slice for ceramic vat photopolymerization." In 3rd International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2024), edited by Dailin Zhang and Ke Zhang. SPIE, 2024. http://dx.doi.org/10.1117/12.3038308.

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Hesami, L., C. Yang, N. Noginova, and M. A. Noginov. "Control of Photopolymerization of BITh Thin Films with Plasmonic Metal/Dielectric Substrates." In CLEO: Applications and Technology. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/cleo_at.2023.jtu2a.125.

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We studied effects of metal-dielectric substrates on photopolymerization of BITh monomer. We found that the rate of photopolymerization is getting higher if the monomer film is deposited on top of silver, gold, and lamellar structures.
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Yamaguchi, Katsumi, and Takeshi Nakamoto. "Microfabrication using laser-induced photopolymerization." In Laser-Assisted Microtechnology 2000, edited by Vadim P. Veiko. SPIE, 2001. http://dx.doi.org/10.1117/12.413747.

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Hoyle, Charles E., Tsuyoshi Watanabe, and Joe B. Whitehead, Jr. "Photopolymerization of oriented monomeric liquid crystals." In SPIE/IS&T 1992 Symposium on Electronic Imaging: Science and Technology, edited by Paul S. Drzaic and Uzi Efron. SPIE, 1992. http://dx.doi.org/10.1117/12.60390.

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Krongayz, Vadim V., and E. R. Schmelzer. "Peculiarities of anisotropic photopolymerization in films." In San Diego, '91, San Diego, CA, edited by Roger A. Lessard. SPIE, 1991. http://dx.doi.org/10.1117/12.50685.

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Baldacchini, Tommaso, Huzhen Chen, Richard Farrer, et al. "Multiphoton photopolymerization with a Ti:sapphire oscillator." In High-Power Lasers and Applications, edited by Glenn S. Edwards, Joseph Neev, Andreas Ostendorf, and John C. Sutherland. SPIE, 2002. http://dx.doi.org/10.1117/12.461373.

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Diptanshu, Erik Young, Chao Ma, Suleiman Obeidat, Bo Pang, and Nick Kang. "Ceramic Additive Manufacturing Using VAT Photopolymerization." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6389.

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The popularity of additive manufacturing for producing porous bio-ceramics using vat photopolymerization in the recent years has gained a lot of impetus due to its high resolution and low surface roughness. In this study, a commercial vat polymerization printer (Nobel Superfine, XYZprinting) was used to create green bodies using a ceramic suspension consisting of 10 vol.% of alumina particles in a photopolymerizable resin. Four different sizes of cubical green bodies were printed out. They were subjected to thermal processing which included de-binding to get rid of the polymer and thereafter s
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Croutxe-Barghorn, Celine, Olivier Soppera, and Daniel-Joseph Lougnot. "Microlens array fabrication through crosslinking photopolymerization." In Symposium on Micromachining and Microfabrication, edited by Sing H. Lee and J. Allen Cox. SPIE, 1999. http://dx.doi.org/10.1117/12.360531.

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