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Relevant bibliographies by topics / Crystallinity / Dissertations / Theses

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Dissertations / Theses on the topic 'Crystallinity'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Santos, Flavio Bezerra dos. "Molecular structure and liquid crystallinity." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243176.

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2

Perry, Christopher Cecil. "Orientation and crystallinity of bifunctional adsorbates." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366426.

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3

Murphy, Lindsay Adams. "Morphological investigation of AFR-PEPA-N imide oligomers and their cured polyimides and the remodification of AFR-PEPA-N to achieve liquid-crystalline behavior." Texas A&M University, 2003. http://hdl.handle.net/1969.1/1174.

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The morphological investigation of AFR-PEPA-N and the development of a new polyimide have been established herein. AFR-PEPA-N is an imide oligomer that was created out of the need to attain a high temperature polyimide that is also resistant to hygrothermal and thermooxidative degradation. Previously, AFR700B was implemented in aerospace applications, but it was found to be hygrothermally unstable. It experienced a severe drop in its glass transition temperature and composite blistering. AFR700B was improved upon, by altering the chemical structure of the polyimide. The nadic end-cap was re

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4

Lehnert, Ralph Juergen. "Studies on the crystallinity of poly(tetrafluoroethylene)." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241181.

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5

Breeson, Andrew. "Control of crystallinity in photocatalytic titanium dioxide." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/10037914/.

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Powders and thin films of titanium dioxide (TiO2) were synthesised via wet chemical methods in two ways: a sol-gel synthesis, and a liquid phase deposition. Crystalline mixed phase powders, highly oriented films, and non-crystalline films of titanium dioxide have all been investigated. Specifically this investigation revealed dramatic differences in the XPS valance band spectra of the crystalline polymorphs of anatase and rutile, and subsequently a novel procedure for extracting quantitative phase information from X-ray photoelectron spectroscopy valence band spectra was developed. A linear re

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6

Fletcher, Ian David. "Liquid crystallinity and the role of molecular flexibility." Thesis, University of Southampton, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239472.

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7

Ismail, Yob Saed Bin. "Structure/property relationships associated with woven glass fibres reinforced polypropylene composites." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/11902.

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The objective of this work was to examine the effect of thermal history during cooling from the melt on the degree of crystallinity, morphology and as well as the relationship between morphology/thermal history and mechanical properties of a 60:40 weight % mixture of woven glass fibres/PP composites. Mechanical properties studied include low velocity falling weight impact strength, flexural properties (modulus and strength) and interlaminar shear strength (ILSS). However the main focus was low velocity impact strength. The composite laminates were manufactured within a flat mould using a compr

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8

Zakrevskyy, Yuriy. "Liquid crystallinity and alignment of ionic self-assembly complexes." Phd thesis, [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=982215908.

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9

Suryanarayanan, Rajagopalan. "Studies on the crystallinity and phase transitions of calcium gluceptate." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25978.

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Calcium gluceptate (calcium ɑ-glucoheptonate, CaC₁₄,H₂₆O₁₆) occurs as a crystalline hydrate (I) containing 3 1/2 molecules of water of crystallization per atom of calcium or as an amorphous anhydrate(III). Calcium gluceptate was synthesised commercially as III until 1980 but since then only I has been commercially available. The maximum aqueous solubility of III at room temperature was found to be > 2 molal while the equilibrium solubility of I at 25.5°C was 0.06 molal (≃3.3% w/v). A crystalline anhydrate (II) wtiich had an apparent water solubility of 1.3 molal was prepared from I by dehydrat

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10

Kang, Chin-Shuo. "CONTROL OF TITANIUM DIOXIDE NANOFIBER CRYSTALLINITY, PARTICLE SIZE AND MORPHOLOGY." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron161960479044817.

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11

Crawford, Evan Cameron. "Klondike placer gold : new tools for examining morphology, composition and crystallinity." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/31649.

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This work focuses on developing and expanding the utility of several new and previously used methods for examining the morphology, composition and crystallinity of placer gold. Several studies using samples from the Klondike District and surrounding areas in west-central Yukon investigating each of these properties are presented, along with potential future applications for the methods, and implications of the results already obtained. The new method for examination of the morphology of placer gold is centered around semi-automated digital image analysis. Automating morphological analysis allo

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12

Strachan, Clare, and n/a. "Spectroscopic investigation and quantitation of polymorphism and crystallinity of pharmaceutical compounds." University of Otago. School of Pharmacy, 2005. http://adt.otago.ac.nz./public/adt-NZDU20070427.141108.

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Spectroscopy is increasingly used to investigate and monitor the solid state forms of pharmaceutical materials and products. Spectroscopy�s speed, nondestructive sampling, compatibility with fibre optics and safety also make it attractive for in-line monitoring. In this thesis, the spectroscopic techniques Fourier transform Raman spectroscopy, terahertz pulsed spectroscopy and second harmonic generation were used to characterise and quantify polymorphism and crystallinity of pharmaceutical compounds. Where possible, the multivariate analysis technique partial least squares was used for quant

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13

Royaud, Isabelle Anne-Marie. "Conformation and crystallinity in polymers - a study using novel Raman techniques." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236347.

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14

Greyling, Corinne Jean. "Electrospinning of polyacrylonitrile nanofibres with additives : study of orientation and crystallinity." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/3996.

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Thesis (PhD (Chemistry and Polymer Science))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Polyacrylonitrile, (PAN), polymers are of interest due to their many unique characteristics in comparison to most other fibre forming polymers. The focus of this study was the effect of electrospinning variables and additives on their unusual thermal properties and internal molecular morphology with the objective of improving the performance of this fibre in industrial application, or at least contributing to the understanding of how the fibre processing variables affect the thermal perfor

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15

Czerewko, Mourice Andrew. "Diagenesis of mudrocks, illite 'crystallinity' and the effects on engineering properties." Thesis, University of Sheffield, 1997. http://etheses.whiterose.ac.uk/14669/.

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This study deals with the changes in mineralogy and fabric of a suite of mudrocks due to increased induration caused by diagenetic history, and the subsequent controls on geotechnical properties. Burial diagenesis of mudrocks has important implications on their engineering behaviour, in particular the liberation of Si and Ca during illitisation of smectite and mixed layer clay minerals leading to cementation. The objective of the research has been to provide a means of predicting engineering performance of mudrocks from mineralogical composition. A suite of 41 mudrock samples ranging from Camb

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16

Wen, Ming. "The effect of carbon black crystallinity on dispersion in SBR matrix." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1619022632906256.

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17

Polam, Anudeep. "Thermal and Draw Induced Crystallinity in Poly-L-Lactic Acid Fibers." Cleveland State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=csu1439843418.

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18

Zarringhalam, Hadi. "Investigation into crystallinity and degree of particle melt in selective laser sintering." Thesis, Loughborough University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.479221.

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19

Heifferon, Katherine Valentine. "Designing Functionality into Step-Growth Polymers from Liquid Crystallinity to Additive Manufacturing." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/99829.

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Step-growth polymerization facilitates the synthesis of a wide range of industrially applicable polymers, such as polyesters and polysulfones. The choice of backbone and end group structure within these polymers drastically impacts the final material properties and processability emphasizing the necessity for thorough understanding of structure-property relationships. Seemingly simple changes, such as exchanging a monomer for its regioisomer, affects the polymers fundamental packing structure triggering a domino effect ultimately influencing the morphological, thermal, mechanical and barrier p

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20

Modutwane, Angel Tumelo. "The optimization of the ZSM-5 catalyst activity with respect to crystallinity." Master's thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/6697.

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In the synthesis of zeolites optimization of factors such as crystallinity, which encapsulates morphology, and acidity can result in optimal activity. Optimal activity is vital in chemical industries due to the fact that it results in higher yields, better selectivities and lower operational costs. In this project the effect of crystallinity on activity is investigated to get a better understanding of performance in terms of activity of amorphous, partially crystalline and highly crystalline materials using isomerisation of para-xylene as the probe reaction.

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21

Jeong, Yong Soo. "Poly(ethylenedioxythiophene) Derivatives Embodying Chirality and Liquid Crystallinity-Synthesis and Electrochemical Properties." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/131886.

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22

Bentley, Phillip Arthur. "The application of vibrational spectroscopy to topical problems in qualitative and morphological analysis." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307284.

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23

Han, Peilin. "New Advances to Control Morphology and Crystallinity in Solution Processed Polymer Solar Cells." Doctoral thesis, Universitat Rovira i Virgili, 2016. http://hdl.handle.net/10803/349209.

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En aquest treball es demostren nous mètodes prometedors en la fabricació de cèlules solars orgàniques obtingudes per processos en dissolució. Més concretament, s'ha demostrat que l'envelliment de la sol·lució i la utilització de solvents ternaris són utls per a la modificació de la nanomorfologia i la fase cristalina de la capa activa en cel·les basades en PTBx:PCBM. L'estudi es centre en comprendre com l'envelliment de la sol·lució i la barreja de solvents influencien les morfologies de la barreja de polímers a la cel·la, la seva cristalinitat i la eficiència del dispositiu. En base a mesure

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24

Lai, Lo Ming. "Synthesis, optical activity, and liquid crystallinity of polyacetylenes containing naturally occurring building blocks /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202006%20LAI.

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25

Farrand, Fiona Jane. "The influence of the linking group on the liquid crystallinity of dimeric molecules." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285627.

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26

Fernandez, Lorences Jose O. "Crystallinity changes in PET and Nylon 11 with strain, strain rate and temperature." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/32894.

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The mechanical properties of PET (widely used in bottles and synthetic fibres) and Nylon 11 (also used in the fabrication of synthetic fibres) were studied over several decades of strain rate at different temperatures in an effort to provide a more complete description of these materials behaviour. Processing techniques can be improved if such information is available. Tests were carried out using a conventional Hounsfield machine and two in-house-developed dropweight and a cross bow systems from 10°C to 200°C. The three systems enable true stress vs. true strain curves to be calculated.

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27

Keridou, Ina. "Study on crystallinity, properties and degradability of poly-4-hidroxybutyrate and related polyesters." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/672122.

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In the last decades, polymeric biomaterials, due to their advanced physical and mechanical properties, have been used in a vast variety of surgical and pharmaceutical applications. In this thesis, a study on crystallinity, properties, and degradability of poly-4-hydroxybutyrate (P4HB), commercially marketed as MonoMax® by B. Braun Surgical S.A.U. as an absorbable monofilament suture, and related polyesters is presented. Part of this work has been executed under the collaborative research project established between PSEP (Polímeros Sintéticos. Estructura y Propiedades) research group of Unive

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28

Macià, Escatllar Antoni. "Computational Modelling of TiO2 and Mg-silicate nanoclusters and nanoparticles - Crystallinity and Astrophysical Implications." Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/669508.

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The research presented in this thesis contributes to the understanding of both titania and silicate nanosystems by providing new information on energetic stability and properties of nanometer sized particles using computational modelling. Particular emphasis is placed on the importance of two nanosized regimes: i) tens of atoms, and ii) several hundred up to thousands of atoms. We differentiate these two size regimes by naming nanoclusters the structures containing between tens up to a hundred of atoms, and using the term nanoparticles (NPs) for the structures containing hundreds to thousands

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29

Quinlan, Erin. "Thermal and crystallinity profiles in laminates manufactured with the automated thermoplastic tow placement process." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103584.

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Automated Tow Placement (ATP) is an increasingly desirable manufacturing technique for composite materials for aerospace applications. Historically, thermoset composites have been the desired material for ATP. However, high performance thermoplastics have proven they can perform as well as the thermoset matrix. The three main goals to further the research on thermoplastics used in ATP are the following. First, to model the crystallinity level of a thermoplastic composite material with Differential Scanning Calorimetry (DSC) experiments on thermoplastic films. Second, to provide a thermal a

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30

Wang, Shiping. "THICKNESS AND CRYSTALLINITY DEPENDENT SWELLING OF POLY (ETHYLENE OXIDE) /POLY (METHYL METHACRYLATE) BLEND FILMS." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1556831245474707.

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31

Seeley, Zachary Mark. "Titanium dioxide-based carbon monoxide gas sensors : effects of crystallinity and chemistry on sensitivity." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Dissertations/Fall2009/z_seeley_120209.pdf.

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32

Taoum, Haifa. "High-Crystallinity TMDs@SWCNTs Hybrid Heterostructures Synthesis : Towards Next-Generation Photodetectors and Gas Sensors." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAX148.

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L'évolution des technologies silicium atteint ses limites intrinsèques, entraînant un besoin d'innovations en matériaux et architectures pour la miniaturisation, la sensibilité et le faible consommation d'énergie dans les dispositifs électroniques.Les dichalcogénures de métaux de transition (TMDs), avec leur épaisseur atomique et leurs propriétés optoélectroniques uniques, suscitent un vif intérêt pour des applications telles que la photodétection et la détection de gaz. Cependant, la synthèse de TMDs de haute cristallinité, contrôlée par épitaxie par faisceau moléculaire (MBE), demeure un déf

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33

Dupee, James David. "On-line crystallinity and temperature measurements of nylon 6,6 using a remote laser Raman probe." Thesis, Queen Mary, University of London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287935.

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34

Eburneo, Juliana Aparecida Marques [UNESP]. "Características físico-químicas de amidos extraídos de batatas cultivadas sob diferentes doses de adubação nitrogenada." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150005.

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Submitted by Juliana Aparecida Marques Eburneo null (julianaeburneo@gmail.com) on 2017-03-27T19:09:19Z No. of bitstreams: 1 Dissertação Final Versão Impressão.pdf: 1337107 bytes, checksum: a68b8582ead29404b314742e523864b0 (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-03-29T19:40:50Z (GMT) No. of bitstreams: 1 eburneo_jam_me_bot.pdf: 1337107 bytes, checksum: a68b8582ead29404b314742e523864b0 (MD5)<br>Made available in DSpace on 2017-03-29T19:40:50Z (GMT). No. of bitstreams: 1 eburneo_jam_me_bot.pdf: 1337107 bytes, checksum: a68b8582ead29404b314742e5

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35

Romine, William Whittington Alan G. "Flow and heat transfer properties of Mono Craters rhyolites effects of temperature, water content, and crystallinity /." Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/5685.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on October 5, 2009). Thesis advisor: Dr. Alan G. Whittington. Includes bibliographical references.

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36

Gilley, Andrew. "Amorphous solid dispersion effects on in vitro solution concentrations of quercetin." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/72864.

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Quercetin is a flavonol with potential health benefits including activities against cardiovascular disease, obesity, and oxidative stress. However, the benefits of quercetin are likely limited by poor bioavailability, primarily attributed to its poor aqueous solubility (due to its hydrophobicity and crystallinity) and extensive phase-II metabolism. Improving the apparent solubility of quercetin has the potential to improve its in vivo bioavailability. Strategies to increase solution concentrations in the small intestinal lumen have the potential to substantially increase quercetin bioavailabil

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37

Yan, Bing. "Effects of Thermal Treatments on Perfluorosulfonate Ionomer Membranes." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/44195.

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Perfluorosulfonate ionomer (PFSI) membranes were annealed at elevated temperature for various periods of time in order to investigate the morphological effects of thermal treatments. For NafionÂ® 117, the DSC thermograms of Na+-, Cs+- and tetramethylammonium(TMA+)-form membranes show an endothermic peak develops upon annealing at 200ÂºC, indicating the development of crystallinity in the membrane. For these three samples annealed under same conditions, the heat of fusion (Î H) values of the endothermic event increases with increasing counterion size. Larger tetraalkylammonium ions, tetraethyla

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38

Öman, Tommy. "Multivariate Analysis of 2D-NMR Spectroscopy : Applications in wood science and metabolomics." Doctoral thesis, Umeå universitet, Kemiska institutionen, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-80201.

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Wood is our most important renewable resource. We need better quality and quantity both according to the wood itself and the processes that are using wood as a raw material. Hence, the understanding of the chemical composition of the wood is of high importance. Improved and new methods for analyzing wood are important to achieve better knowledge about both refining processes and raw material. The combination of NMR and multivariate analyses (MVA) is a powerful method for these analyses but so far it has been limited mainly to 1D NMR. In this project, we have developed methods for combining 2D

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39

Hu, Jiahuan. "Strain-Induced Crystallization of Natural Rubber and Isoprene Rubber Studied by Solid-State NMR Spectroscopy." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1397087771.

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40

Davis, Kedzie. "The effect of cooling rate on toughness and crystallinity in poly(ether ketone ketone) (PEKK)/G30-500 composites." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-09182008-063310/.

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41

Murata, Kazuya, Masafumi Ito, Masaru Hori, and Toshio Goto. "Control of seed layer for a low temperature formation of polycrystalline silicon with high crystallinity and a smooth surface." American Institute of Physics, 1999. http://hdl.handle.net/2237/7079.

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42

Ostermann, Rainer [Verfasser]. "Design and physico-chemical characterization of nanowires and multicomponent metal oxide films with tailored mesostructure and crystallinity / Rainer Ostermann." Gießen : Universitätsbibliothek, 2011. http://d-nb.info/1062972732/34.

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43

Madathingal, Rajesh Raman. "Nanoscale confinement and interfacial effects on the dynamics and glass transition/crystallinity of thin adsorbed films on silica nanoparticles." Diss., Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/116348.

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Chemistry<br>Ph.D.<br>The research investigated in this dissertation has focused on understanding the structure-property-function relationships of polymer nanocomposites. The properties of composite systems are dictated by the properties of their components, typically fillers in a polymer matrix. In nanocomposites, the polymer near an interface has significantly different properties compared with the bulk polymer, and the contribution of the adsorbed polymer to composite properties becomes increasingly important as the filler size decreases. Despite many reports of highly favorable properties,

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44

Demirel, Bilal, and bilal demirel@student rmit edu au. "Optimisation of Petaloid Base Dimensions and Process Operating Conditions to Minimize Environmental Stress Cracking in Injection Stretch Blow Moulded PET Bottles." RMIT University. SAMME, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20090305.154433.

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ABSTRACT Injection stretch blow moulded PET bottles are the most widely used container type for carbonated soft drinks. PET offers excellent clarity, good mechanical and barrier properties, and ease of processing. Typically, these bottles have a petaloid-shaped base, which gives good stability to the bottle and it is the most appropriate one for beverage storage. However, the base is prone to environmentally induced stress cracking and this a major concern to bottle manufacturers. The object of this study is to explain the occurrence of stress cracking, and to prevent it by optimising

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45

Li, Ding. "LOCALIZED MECHANICAL DEFORMATION AND DISSOLUTION OF 45S5 BIOGLASS." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_diss/91.

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Bioactive glasses react with the human physiological solution in control of their biofunctionality. The stress state in bioactive glasses determines the chemomechanical reaction and their biofunctionality. Using the microindentation technique, the effect of the indentation deformation on the surface damage and material dissolution of 45S5 bioglass was investigated. The indentation-induced residual stresses were calculated. Complete anelastic recoveries of the indentation depths and the impression marks were observed for the first time, which was likely driven by the stored strain energy over t

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46

Horta, Daniela Gomes. "Efeito da cristalinidade e da cinética de dissolução no desempenho da flotação de apatitas e calcitas." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-06072014-215639/.

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Diferentes estratégias de flotação (reagentes, pH e rota) têm sido utilizadas na separação entre apatita e carbonatos em todo o mundo. Há evidências na literatura de que a cristalinidade afeta a flotação de apatitas e calcitas com oleato de sódio. Além disso, a dissolução dos sais semi-solúveis pode influenciar a interação entre a superfície dos minerais e os reagentes de flotação, uma vez que o mecanismo de adsorção mais importante é a precipitação de oleato de cálcio na interface sólido/líquido. Portanto, o objetivo deste trabalho é investigar a relação entre cristalinidade, cinética de diss

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47

Melnyk, I. A., V. V. Klepko, and N. I. Lebovka. "Effect of Molecular Weight on the Properties of Polyethyleneglycols Doped with Multiwalled Carbon Nanotubes." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42546.

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The aim of this study is to analyze the changes in the structure, thermal properties and electrophysical behavior of polyethylene glycol doped with multiwalled carbon nanotubes. The differential scanning calorimetry and electrical conductivity methods were used to study influence of doping multiwalled carbon NTs on the properties of polyethylene glycol of different molecular weights, Mw (PEG-400, PEG-1000, PEG- 10000). Dependencies of the polymers degree of crystallinity and temperature behavior of conductivity on the concentration of NTs were researched. The obtained data indicates a strong

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48

Duncan, Laura Kristin. "Characterization of C60 Nanoparticles in Aqueous Systems." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/32439.

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The discovery that negatively charged aggregates of C60 fullerene are stable in aqueous environments has elicited concerns regarding the potential environmental and health effects of these aggregates. Although many previous studies have used aggregates synthesized using intermediate organic solvents, this work primarily employed an aggregate production method that more closely emulates the fate of C60 upon accidental release into the environment â extended mixing in water. The aggregates formed via this method (aqu/nC60) differ from those produced using the more common solvent exchange met

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49

Jonzon, Julia. "Characterization andmodeling of amorphous andcrystalline ratios in poly-acrylates." Thesis, Mittuniversitetet, Avdelningen för kemiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-40092.

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At Nouryon Stockvik the Expancel production site is located. Expandable microspheres areused in for many types of applications and is a technically challenging product. At ExpancelStockvik they are constantly striving to improve product properties in line with customerexpectations. To be able to do this, it is important to understand the properties of themicrospheres such as crystallinity and crystallite size.Films was prepared from microspheres dissolved in DMA and analyzed with High-resolutionSEM, Powder X-Ray Diffraction and Raman Spectroscopy. The aim was to develop a methodto investigate

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Liu, Nan. "Tailoring Crystalline Phase and Surface of Lanthanide-Based Nanoparticles for MRI Applications." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39868.

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Lanthanide-based nanoparticles (Ln3+-based NPs) are promising candidates as magnetic resonance imaging (MRI) contrast agents. The present thesis aims to investigate the effect of the crystalline phase of Ln3+-based NPs on their MRI contrast performance. Understanding the phase-dependent MRI contrast behaviour of Ln3+-based NPs will provide insights into the development of brighter MRI contrast agents for future in vivo biomedical applications. A set of NaGdF4 NPs (6-8 nm) in cubic and hexagonal phases in the same size range was synthesized by employing a microwave-assisted approach, allowing t

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