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Dissertations / Theses on the topic 'Polyvinyl chloride'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

El-Akesh, Esmail Omar. "Thermal decomposition of chlorinated polyvinyl chloride systems." Thesis, University of Salford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492419.

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The thermal decomposition of chlorinated polyvinyl chloride (CPVC) systems has been investigated using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and pyrolysis-gas chromatography mass spectroscopy (PyGC/MS) techniques. The influence on the thermal decomposition of CPVC of atmosphere, heating rate, stabiliser, lubricant, dioctyl phthalate (DOP), alkyl diaryl phosphate (Santiciser 2148) and triaryl phosphate (Refos 50) plasticisers and also the smoke-suppressing u-on(III) compound basic iron oxide (FeOOH) in these polymer systems has been studied.

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2

Perry, Katherine Louise. "The diffusion of acetone into polyvinyl chloride." Thesis, University of Surrey, 1994. http://epubs.surrey.ac.uk/844641/.

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The diffusion of small molecules into glassy polymers is often observed to be of the anomalous Case II type. This thesis describes the first comprehensive study of acetone vapour penetrating into PVC. It has been shown that this diffusion process is of the Case II type. The initial stages of the diffusion process have been studied using ion beam nuclear reaction analysis (NRA) whilst long range diffusion has been studied using broadline nuclear magnetic resonance (NMR) imaging techniques. This is the first time that short and long term behaviour has been studied in the same system and has perm

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3

Gong, ShiYi 1970. "Hydrodechlorination of polyvinyl chloride in sub-critical water." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=98711.

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Polyvinyl Chloride (PVC), a plastic polymer composed of &sim;43% hydrocarbon by weight and ~57% chlorine has become extensively used in our daily lives. However, the disposal of waste PVC plastics presents serious problems. The increased awareness of these problems requires the development of a reliable technique to dispose of these wastes in a safe and environmentally benign way that is devoid of the formation/release of organo-chlorine compounds. Chemical degradation of PVC is a technology that transforms PVC waste into completely new chemical products that don't contain chlorine. Sub-critic

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4

Dib, Shelby A. "Stability of Phenylephrine Hydrochloride in Polyvinyl Chloride Bags." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1562926540976767.

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5

Lee, David W. "Thermal degradation of polymer blends containing poly(vinyl chloride) /." Online version of thesis, 1987. http://hdl.handle.net/1850/10287.

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6

Matuana-Malanda, Laurent. "Wood fiber/polyvinyl chloride composites and their microcellular foams." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0002/NQ27693.pdf.

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7

Santamaria, Estibaliz. "The performance and mechanism of a novel stabiliser for PVC." Thesis, Manchester Metropolitan University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248378.

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8

Elraghi, Somia. "Polyblending of rigid PVC with kraft lignin application to the building exterior facade /." Thesis, Connect to online version, 1993. http://0-wwwlib.umi.com.mercury.concordia.ca/cr/concordia/fullcit?pMM87260.

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9

Do, Tuyet-Trinh. "Thermal degradation of polyvinyl chloride blends / by Tuyet-Trinh Do." Thesis, Queensland University of Technology, 2000.

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10

Erdoğdu, Cem Aykut Balköse Devrim. "The development of synergistic heat stabilizers for PVC from Zinc Borate-Zinc Phosphate/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/kimyamuh/T000509.pdf.

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11

Stroyan, Jared James. "Processing and characterization of PVDF, PVDF-TrFE, and PVDF-TrFE-PZT composites." Online access for everyone, 2004. http://www.dissertations.wsu.edu/Thesis/Fall2004/j%5Fstroyan%5F121704.pdf.

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12

Jiang, Yunhong. "Antimicrobial behaviour of Polyvinyl Chloride(PVC) films coated with ZnO nanoparticles." Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.545697.

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13

Lo, Chung Keung. "Voltammetric and spectroscopic studies of dye-immobilised poly(vinyl chloride) membranes." HKBU Institutional Repository, 2003. http://repository.hkbu.edu.hk/etd_ra/425.

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14

Grant, J. "Ferrocene containing smoke suppressants and flame retardants for semi rigid polyvinyl chloride." Thesis, Northumbria University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317038.

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15

Prystay, Marc C. (Marc Christopher). "Photothermal imaging of optical polymers, polymer metal interfaces and photodegradation of polyvinyl chloride." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41750.

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Photopyroelectric spectroscopy (PPES) is a relatively new nondestructive photothermal technique that uses a pyroelectric sensor placed in intimate contact with thin film samples to record the photogenerated thermal waves transmitted by the sample. In this thesis it is demonstrated that photopyroelectric spectroscopy is capable of recovering profiles of optical absorptivity in micron scale thick polymer laminates with submicron depth resolution. The pyroelectric method has also been used to characterize adhesion at polymer/metal interfaces from the photothermal impulse response using both the t

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16

Conley, Mark Lewis. "Mechanistic investigations and optimizations of thermal stability in polyethylene and polyvinyl chloride blends." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53938.

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The thermal stability of two distinct blended polymer systems was examined. A model for polyethylene was used to investigate the vulnerability of polyethylene to premature crosslinking in industrial crosslinking conditions. Careful experiments were conducted to gather evidence of the interaction between a peroxide crosslinking agent and a specific antioxidant additive. Multiple lines of evidence were combined to propose a complete mechanism of interaction between the two species. The mechanism was further tested and a hypothesis was proposed for the reduction in premature crosslinking exhi

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17

Vess, Lora Elizabeth. "The politics of PVC /." Connect to title online (Scholars' Bank) Connect to title online (ProQuest), 2007. http://hdl.handle.net/1794/6195.

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Thesis (Ph. D.)--University of Oregon, 2007.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 252-277). Also available online in Scholars' Bank; and in ProQuest, free to University of Oregon users.

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18

Ramacieri, Patricia. "Microstructure and kinetics of thermal degradation of alkene copolymers of vinyl chloride." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72819.

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19

Murray-Chiasson, Audrey. "Étude de la relâche des inclusions lors de la filtration de l'aluminium liquide /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2002. http://theses.uqac.ca.

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20

Mao, Feng. "Permeation of hydrocarbons through polyvinyl chloride (PVC) and polyethylene (PE) pipes and pipe gaskets." [Ames, Iowa : Iowa State University], 2008.

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21

Flanagan, Leslie. "Environmental assessment of the re-use and recycling of unplasticised polyvinyl chloride window profiles." Thesis, University of Brighton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324398.

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22

Johnson, Garrick. "The Effect of Fungal Growth on Potential Phthalate Ester Exposures from Plasticized Polyvinyl Chloride." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5048.

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This study examined the effects of the presence of fungal growth on the phthalate ester content of plasticized polyvinyl chloride (pPVC) used as the vapor barrier component of metal building insulation and the impact the fungal growth may have on the resulting exposure potential to the workers in the building. Individual pieces of the pPVC material exhibiting fungal growth and individual pieces of the pPVC material exhibiting no fungal growth were collected from the building being investigated. Twenty-five pieces each of the pPVC material exhibiting fungal growth and of the pPVC material exhib

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23

Datta, Arindam. "Effects of plasticizers on extrusion of PVC: an experimental & numerical study." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54346.

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Plasticizers are often interchanged with the idea that they will not affect the processing behavior of Polyvinyl Chloride (PVC). However, when the plasticizer type is changed, various complaints are made by the processors that the material no longer processes the same. This research was concerned with the effect of three different plasticizers on the plasticating extrusion behavior of PVC. Di-isodecyl pthalate (DIDP), di-hexyl pthalate (DHP) and 2-ethyl hexyl pthalate (DOP) are the three plasticizers used in this study. First some differences in the extrusion performance of the three different

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24

Somasundaram, Deepak. "Dynamic response of polymer encased concrete walls." Birmingham, Ala. : University of Alabama at Birmingham, 2007. https://www.mhsl.uab.edu/dt/2009r/somasundaram.pdf.

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Thesis (M.S.)--University of Alabama at Birmingham, 2007.<br>Additional advisors: Talat Abu-Amra, Robert J. Dinan, Fouad H. Fouad, Uday K. Vaidya. Description based on contents viewed July 9, 2009; title from PDF t.p. Includes bibliographical references (p. 166-169).

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25

Ford, Kevin J. "Aging model for commercial polymers." Morgantown, W. Va. : [West Virginia University Libraries], 2002. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=2577.

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Thesis (M.S.)--West Virginia University, 2002.<br>Title from document title page. Document formatted into pages; contains xii, 95 p. : ill. Includes abstract. Includes bibliographical references (p. 68-70).

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26

Saunders, Justin S. "Combined effects of termiticides, volatile organic compounds, and mechanical stress on chlorinated polyvinyl chloride (CPVC)." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0013263.

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27

McGovern, James Gerard. "Pathogenesis and control of infection associated with the oropharynx and the polyvinyl chloride endotracheal tube." Thesis, Queen's University Belfast, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388226.

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28

Chen, Chen. "Synthesis and improvement of high performance PVC and PVDF ultrafiltration membranes." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53535.

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The applications of membrane technologies have dramatically increased during the last few decades due to technology improvement and cost reduction. Membrane applications can be found in water and wastewater treatment, pharmaceutical industry, chemical processing industry, food industry, etc. However, the membrane technology faces two major challenges: membrane fouling and membrane lifetime. During the membrane filtration process, membrane fouling caused by natural organic matter (NOM) is an inevitable phenomenon, and physical cleaning or chemical cleaning are required for recovering the perfor

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29

Garcia, Jose L. "Studies on the injection molding of Polyvinyl Chloride : analysis of viscous heating and degradation in simple geometries /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488193665235254.

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30

Šilhánková, Lenka. "Vývoj metody pro semikvantitativní stanovení mikroplastů v půdách metodou TGA-MS." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2018. http://www.nusl.cz/ntk/nusl-376860.

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Plasty, pronikající do životního prostředí ať už neúmyslně či záměrně, mohou být fragmentovány za vzniku částic v řádu mikrometrů (tzv. mikroplastů) a znečišťovat tak půdní systémy. Doposud vyvinuté analýzy pro stanovení mikroplastů v půdách jsou především zaměřeny na kvalitativní stanovení, nicméně i jejich provedení se zatím stále potýká s různými úskalími. Navíc, téměř všechny tyto analýzy vyžadují časově náročnou předúpravu vzorku. V této studii jsme se zaměřili na vývoj nové analytické metody pro kvantitativní stanovení mikroplastů polyvinylchloridu (PVC) a polystyrenu (PS) v půdách bez p

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31

Закусило, Роман Васильович, Роман Васильевич Закусило, Roman Vasylovych Zakusylo та Д. Р. Закусило. "Дериватографические исследования долговечности труб из поливинилхлорида PVC−HI Type 1". Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/52133.

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В связи с интенсивным научным прогрессом, различные предметы и изделия для повседневной жизни часто подвергаются изменениям для их дальнейшего улучшения и совершенствования. Поиск альтернативного материала, который по свойствам превосходил бы изначальный, является основной целью для современных инженеров. Одна из основных проблем любого современного города связана с водоканалом. Штатные металлические водопроводные трубы обладают низкой долговечностью и невысокими эксплуатационными характеристиками, что довольно усложняет процесс развития городов и народного хозяйства.

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32

Djir-Sarai, Bijan. "Ökologische Modernisierung der PVC-Branche in Deutschland /." Wiesbaden : VS, Verl. für Sozialwiss, 2008. http://d-nb.info/989997197/04.

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33

Fayoux, Stéphane C. "Interactions between plasticised PVC films and citrus juice components." Thesis, View thesis, 2004. http://handle.uws.edu.au:8081/1959.7/35863.

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The study presented here consists in an original piece of work to better understand complex food packaging interactions. The majority of investigations on food polymer interactions related to orange juice and this provided a good base to our study (Literature reviews: cf. Chapters 1a and b). Additionally a rather remarkable finding in 1994 was that limonin, a trace bitter material found in some varieties of orange juice was rapidly absorbed by highly plasticised polyvinyl chloride (PVC plastisol) (Chapter 2). Several commercial absorbants are available for debittering, relying on limonin absor

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34

Björnsdotter, Maria. "Leaching of Residual Monomers, Oligomers and Additives from Polyethylene, Polypropylene, Polyvinyl Chloride, High-density Polyethylene and Polystyrene Virgin Plastics." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-45888.

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Plastic debris are accumulating in our oceans and are degraded into smaller pieces which eventually becomes small enough to be available to lower thropic level organisms. Microplastics, commonly defined as plastic particles <5 mm, are globally distributed and found at remote locations far away from industrialized and populated areas. The effects of macro sized plastics is well understood whilst the effects of microplastics is hard to predict. It is known that microplastics act as transfer vectors for a wide range of toxic chemicals into organisms, and it is also known that the particle itse

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35

Connell, David 1974. "Hazen-Williams C-factor assessment in an operational irrigation pipeline." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33737.

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In the spring of 1998, a closed end gravity flow pipeline was installed in the Lethbridge Northern Irrigation District. The pipes ranged from 900 mm to 300 mm in diameter.<br>Manholes were placed at several locations along the pipeline and were used to install velocity meters and pressure transducers, which recorded data every second. Pressures and velocities during periods of steady state were used to calculate the head loss, Re and the Hazen-Williams friction factor, "C", along lengths of constant diameter.<br>The results were compared to the industry design standard of C = 150 (used for the

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36

Fayoux, Stéphane C. "Interactions between plasticised PVC films and citrus juice components." View thesis, 2004. http://handle.uws.edu.au:8081/1959.7/35863.

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Thesis (Ph.D.) -- University of Western Sydney, 2004.<br>A thesis presented to the University of Western Sydney, Centre for Advanced Food Research, in fulfilment of the requirements for the degree of Doctor of Philosophy in Advanced Food Science (& Food Packaging Science). Includes bibliography.

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37

Ingham, Edward John. "The development of impact toughness and resistance to slow crack growth in modified polyvinyl chloride and polyethylene pipe grade polymers." Thesis, Manchester Metropolitan University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271274.

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38

Rodolfo, Junior Antonio. "Nanocompósitos de PVC, argila organicamente modificada e óxidos metálicos = estudo do processo de preparação e propriedades de combustão e emissão de fumaça." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266968.

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Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química<br>Made available in DSpace on 2018-08-16T10:09:19Z (GMT). No. of bitstreams: 1 RodolfoJunior_Antonio_D.pdf: 6966645 bytes, checksum: 4b063523c75c2d8c912fc38efa499563 (MD5) Previous issue date: 2010<br>Resumo: Nanocompósitos de poli(cloreto de vinila) (PVC) flexível, com óxidos de cobre (II), molibdênio e zinco, e argila organicamente modificada (O-MMT), foram preparados utilizando-se o processo de pré-esfoliação da argila em uma mistura de plastificantes a quente, seguido da intercalação no estado fundido.

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39

LIMA, JÚNIOR Francisco Alves de. "Estudo do efeito da orientação molecular nas propriedades mecânicas de tubos em policloreto de vinila (PVC)." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/17936.

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Submitted by Irene Nascimento (irene.kessia@ufpe.br) on 2016-09-28T19:19:22Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação PPGEM - Francisco Alves de Lima Júnior.pdf: 7760423 bytes, checksum: b0d747f5e3c3795b57483f19b676a178 (MD5)<br>Made available in DSpace on 2016-09-28T19:19:22Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação PPGEM - Francisco Alves de Lima Júnior.pdf: 7760423 bytes, checksum: b0d747f5e3c3795b57483f19b676a178 (MD5) Previous issue date: 2016-

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40

Bandaru, Venkata Raghava Sunil Kumar Reddy. "Deformation and Durability Studies of Insulation Polymers." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1227191899.

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41

鄧善均 and Shin-kwan Andrew Tang. "Analysis of di(2-ethylhexyl) phthalate in polyvinyl chloride and monosodium glutamate in foodstuff using high performance liquidchromatography and the investigation of microwave digestion method forpaint analysis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B31209452.

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42

Kim, Taehwan. "Preventing Thermal Degradation of Pvc Insulation by Mixtures of Cross-Linking Agents and Antioxidants." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1157547/.

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Poly(vinyl chloride)(PVC) wire and cable insulation has poor thermal stability, causing the plasticizer to separate from the PVC chain and produce an oily residue, lowering the tensile elongation at break and thus increasing brittleness. We have added 4 wt.% of three different types of cross-linking agents and antioxidants, as well as mixtures of both, to improve the thermal stability of the plasticizer and tensile properties of PVC after thermal exposure. We performed tensile tests, tribological tests, profilometry, scanning electron microscopy(SEM) and water absorption determination before a

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43

Pathak, Pooja. "Microscopic Investigations of the Adhesion of Bacteria and Algae on Biomaterial Surfaces." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1176473803.

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44

Haj-Mahmoud, Qasem M. (Qasem Mohammed). "Pyrolysis Capillary Chromatography of Refuse-Derived Fuel and Aquatic Fulvic Acids." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc331124/.

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Pyrolysis-capillary gas chromatography combined with FID, ECD and MS detection were used to characterize refuse-derived fuel and aquatic fulvic acids. Different pyrolysis methods and programs were evaluated. Pyrolysis temperatures of 700-800°C produced the strongest signal for organics present in RDF and fulvic acid. Cellulose and fatty acids pyrolyzates were identifiable by GC-MS following preparative pyrolysis fractionation. At organic chloride content of 0.023%, only three halogenated compounds were detected in the GC-MS of the fractions. None of the priority pollutants were detected at low

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45

Tang, Shin-kwan Andrew. "Analysis of di(2-ethylhexyl) phthalate in polyvinyl chloride and monosodium glutamate in foodstuff using high performance liquid chromatography and the investigation of microwave digestion method for paint analysis /." [Hong Kong : University of Hong Kong], 1989. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12720434.

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46

Zouhri, Yassir. "Amélioration du procédé de synthèse de polychlorure de vinyle par décomposition catalytique de peroxydes." Electronic Thesis or Diss., Université de Lille (2022-....), 2022. http://www.theses.fr/2022ULILR017.

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L'accélération de la polymérisation en suspension du monomère chlorure de vinyle (VCM) par amorçage de peroxyde à l’aide d’un système redox a été étudié ainsi que son impact sur les propriétés du polychlorure de vinyle (PVC) qui en résulte. Ce projet s'inscrit dans le cadre d'une collaboration CIFRE entre la société Vynova-Mazingarbe et l'équipe MOCAH du Laboratoire UCCS de l'université de Lille. L'amorçage de la polymérisation est basé sur la formation de radicaux par décomposition redox d'un pré-amorceur peroxyde, induite par un activateur à deux composants, appelé "kicker". Cet activateur c

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47

Switzer, Jackson Reeves. "Three applications of green chemistry in engineering: (1) silylamines as reversible ionic liquids for carbon dioxide capture; (2) carbon dioxide as protecting group in chemical syntheses; (3) mitigating the thermal degradation of polyvinyl chloride." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/52173.

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Green chemistry principles served as a guide for three industrially-relevant projects. In the first project, silylamines were applied as reversible ionic liquids for carbon dioxide capture from post-combustion flue gas streams. The effect of silylamine structure was thoroughly researched to develop a comprehensive library of silylamines and an accompanying set of structure-property relationships. The proposed solvent systems have the potential to present significant energy savings, as design has focused on their use in a non-aqueous, solvent-free environment. The second project also dealt exte

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48

Vess, Lora Elizabeth 1972. "The Politics of PVC." Thesis, University of Oregon, 2007. http://hdl.handle.net/1794/6195.

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xv, 277 p. A print copy of this title is available from the UO Libraries, under the call number: SCIENCE TP1180.V48 V46 2007<br>This dissertation examines the political, scientific, social, environmental, and health debates surrounding the use of polyvinyl chloride (commonly called vinyl), a plastic many public health advocates and activists contend has a toxic lifecycle with deleterious human and ecological impacts at every stage. Using extensive documentary research and in-depth interviews, I answer a basic question: how and why have major stakeholders politicized PVC in recent decades? I f

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49

Brasil, Edneide Morais. "Atividade antimicrobiana de filmes de policloreto de vinila (PVC) reforçado com nanopartículas de prata imobilizadas em sílica /." Araraquara, 2019. http://hdl.handle.net/11449/183628.

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Orientador: Marcos David Ferreira<br>Resumo: Objetivo. Analisar a eficácia antimicrobiana in vitro de compósito em pó a base de prata e sua aplicação em diferentes concentrações em filmes de policloreto de vinila (PVC) produzidos em escala industrial e em laboratório. Métodos. Um material compósito constituído por dióxido de sílicio (SiO2) e nanopartículas de prata (NpAg), produzido e cedido por uma empresa de soluções tecnológicas, foi caracterizado por Microscopia Eletrônica de Varredura (MEV), Espectroscopia no Infravermelho com Transformada de Fourier (FTIR) e Difração de Raio X (DRX). Fil

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NEVES, LUCIO P. "Desenvolvimento e caracterização de câmaras de ionização cilíndricas como sistemas de referência para dosimetria de feixes de radiação de fótons." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10545.

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Made available in DSpace on 2014-10-09T12:41:43Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:08:28Z (GMT). No. of bitstreams: 0<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP<br>FAPESP:10/01070-4

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