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Dissertations / Theses on the topic 'Structure-property'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Centani, Luyanda. "Structure activity and structure property relationships of antimalarial imidazopyridazines." Master's thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/31315.

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Malaria is one of the most pressing human health issues. Despite being an ancient disease, it is estimated to have an annual death rate of 445 000 with out of 216 million malaria related cases in 2016. Malaria is most widespread in developing regions of the world. Forty percent of the world’s population is exposed to varying degrees of malaria. Malaria is caused by different species of the Plasmodium genus and the disease is vector-borne. The disease may be cured if diagnosed early. Most drugs that were once effective in the treatment of malaria have become ineffective due to the emergence of

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2

Garramone, Samantha. "Structure-property relationships in angioplasty balloons." Link to electronic thesis, 2001. http://www.wpi.edu/Pubs/ETD/Available/etd-0430101-122300/.

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3

Carrasquel, Isha. "STRUCTURE-PROPERTY QUANTIFICATION RELATED TO CRASHWORTHINESS." MSSTATE, 2008. http://sun.library.msstate.edu/ETD-db/theses/available/etd-07102008-140429/.

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The objective of this study is to characterize critical component structure-properties on a Dodge Neon for material response refinement in crashworthiness simulations. Crashworthiness simulations using full-scale finite element (FE) vehicle models are an important part of vehicle design. According to the National Highway Traffic Safety Administration (NHTSA), there were over six million vehicle crashes in the United States during 2004, claming lives of more than 40,000 people. Crashworthiness simulations on a detailed FE model of a 1996 Plymouth/Dodge Neon were conducted on the NHTSA for diffe

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4

York, Gregory A. "Structure-property relationships of multiphase copolymers." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-07102007-142517/.

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5

Duchesne, Denis. "Structure-property relations of vinylpyridinium ionomers." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72755.

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6

Yang, Teo Heng Jimmy. "Structure-property relationships in biological tissues." Thesis, Heriot-Watt University, 2007. http://hdl.handle.net/10399/90.

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7

El-Jack, Abdelmoneim M. A. "Structure-property relation of nonwoven geotextiles." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414539.

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8

Lewis, Gareth Rhys. "Structure-property relationships in anisotropic solids." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263822.

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9

Hutley, T. J. "Structure-property relationships mineral-filled thermoplastics." Thesis, Cranfield University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380475.

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10

Lawton, Samuel S. "Structure-property relationships of conjugated polymers." Thesis, University of Warwick, 2018. http://wrap.warwick.ac.uk/112171/.

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Conjugated polymers for application in optoelectronic devices have been an increasingly popular topic of research over the past two decades, with photovoltaic devices incorporating conjugated polymers now nearing large-scale commercialisation. This work focuses on the structure-property relationships of conjugated polymers. Firstly, the difference in backbone structure between an alternating copolymer and its statistical counterpart are investigated, the differences in backbone sequence is elucidated by kinetic and microscopic techniques. The resulting polymers are found to be more gradient or

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11

Harding, Gareth. "The structure-property relationships of polyolefins." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1386.

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Thesis (PhD (Chemistry and Polymer Science))--University of Stellenbosch, 2009<br>Polypropylene is an extremely versatile material and has a broad spectrum of applications due to the variations in properties which are possible with this material. The variations in the properties of the material are governed by the microstructure of the chains constituting the polymer. The microstructure varies according to the production methods, i.e. the polymerisation conditions. Varying the manner in which the polymer is produced therefore changes the properties of the material allowing the polymers’ u

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12

Tyagi, D. K. "Structure-property relationships in segmented copolymers." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/49948.

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The structure-property relationships for various segmented copolymers were investigated. A number of mechanical and thermal characteristics were determined. The morphology was characterized by SAXS with respect to size and dispersion of domains; degree of phase separation and the domain interfacial thickness. a. Novel segmented copolymers were synthesized using amino terminated polydimethylsiloxane oligomers as the soft component and various hard component. lt was found that the performance of these copolymers was affected by the varying the hard segment linkages, hard segment content, soft s

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13

Johnson, Jed Kizer. "Structure-Property Relationships in Electrospun Scaffolds." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1275068447.

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14

Thiraphattaraphun, Linda. "Structure/property relationships in polypropylene nanocomposites." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/structureproperty-relationships-in-polypropylene-nanocomposites(388eafc0-a98e-4a78-be0d-4d647a122d87).html.

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In this work, structure/property relationships in polypropylene (PP) nanocomposites have been investigated for different nanofillers. Nanofillers of modified clay based on montmorillonite (MMT) and multi-wall carbon nanotubes (MWNTs) have been selected and incorporated to the PP matrix as either single nanofillers or hybrid nanofillers. Melt mixing via a twin screw extruder and further moulding by injection moulding have been used to prepare PP nanocomposites. Moreover, the dilution of MWNT masterbatch has been used to prepare PP/MWNT and PP/clay/MWNT nanocomposites. Three types of the PP nano

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15

Loveday, Donald Ray. "Structure-property relationships in novel ionomers." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-10022007-144854/.

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16

Woo, Tim. "Rigid polyurethane nanocomposites : understanding structure-property relationships /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18708.pdf.

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17

Shishesaz, Mohammad Reza. "Structure-property relationships in extruded plastics foams." Thesis, Brunel University, 1989. http://bura.brunel.ac.uk/handle/2438/5404.

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Physical properties and morphology of extruded semicrystalline polymers can be significantly affected by modification and change in die design and melt viscosity of the molten polymer. Further modifications to physical properties (i.e. density and open cell fraction) of foamed material occur, following the modification of melt viscosity by melt blending of polypropylene and high density polyethylene). The main object of this research project was to carry out a systematic examination of rheological properties of polymer/gas mixture, affect of die design, polymer molecular weight (melt viscosity

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18

Vakili, Sarrah A. C. "Structure-property relationships in cyclopentadienyliron containing compounds." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/9506.

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Within this thesis, several classes of compounds containing cyclopentadienyliron complexes were prepared. These compounds were of the following four classes: linear polymers – containing ester, ether and thioether linkages with varying ratios of aliphatic to aromatic spacers within the backbone of the polymer; star-shaped molecules – discrete molecules containing either one or two branch points as well as ether and ester linkages within the backbone of the molecule; hyperbranched polymers – highly branched one-pot synthesis polymers with ether linkages for the polymeric backbone; and water sol

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19

Armstrong, Anthony Robert. "Structure-property relationships in alkaline-earth cuprates." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385895.

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20

Busby, A. K. "Structure-property relations in some bearing alloys." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376887.

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21

Bischler, P. J. E. "Structure-property relations in aluminium-lithium alloys." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376894.

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This research is concerned with the Al-Li-Cu-Mg alloy 8090. The development of aircraft structural materials, and in particular aluminium alloys, has been reviewed. The development of Al-Li alloys has also been reviewed and the effects of alloy additions and heat treatment on mechanical properties have been discussed. The microstructure of a plate, 25 mm in thickness, has been fully characterised in the solution treated, under-, peak- and over-aged condition after ageing at 190oC. Coarsening of the two major precipitation hardening phases, ' and S-phase, has been related to mechanical properti

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22

Nicholls, David John. "Structure-property relations in aluminium-lithium alloys." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238194.

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This work describes the effect of microstructure on the behaviour of small fatigue cracks in the two Al-Li-Cu-Mg-Zr alloys 8090 and 8091. The slip distribution in these alloys was varied through thermo-mechanical processing. Although slip distribution affected tensile, cyclic and long fatigue crack behaviour, it did not affect small fatigue crack behaviour due to low levels of closure and reduced slip reversibility near to a free surface. Similarly, underageing and overageing had no effect on small fatigue crack behaviour. Therefore, small fatigue crack growth is concluded to be insensitive to

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23

Gallon, Daniel. "Structure-property relationships in solid state chemistry." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270616.

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24

Green, Mark Andrew. "Structure-property relations in non-cuprate superconductors." Thesis, University College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307607.

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25

Kong, Yi. "Structure and property relationships in PET blends." Thesis, University of Birmingham, 2003. http://etheses.bham.ac.uk//id/eprint/7786/.

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Blends of poly(ethylene terephthalate) (PET) and polycarbonate (PC) have been prepared by twin-screw extruder with and without added a transesterification catalyst - lanthanum acetylacetonate hydrate. The blends without added catalyst are completely immiscible over the study range while the blends with added catalyst show partial miscibility. The mechanical properties are slightly improved in the latter blends. Studies were made on the crystallization and melting behaviour of PET and both of blends. It has been found that the crystallisation was inhibited in the presence of PC, particularly in

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26

Sing, Michelle Kay. "Structure-property relationships in physical polymer gels." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111330.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Associating polymer networks are included in a large number of materials where it is important to control and tune the rheological response of the material, particularly including responses to temperature, shear, or changes in the surrounding environment. Knowledge of the relationship between the kinetics of the end-groups that form these associations and the mechanical behavior of the network can provi

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27

Lloyd, Stephen John. "Structure-property relationships in iron-copper multilayers." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624742.

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28

Shephard, Jacob James Eldred. "Structure-property relationships in two-component liquids." Thesis, Durham University, 2014. http://etheses.dur.ac.uk/10708/.

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This thesis tackles several two-component liquids where we currently have a poor understanding of their fundamental structures and influence on properties. A novel approach was taken to investigate hydrophobic interactions.1 Rather than studying the aqueous liquid, for which only very low hydrophobe concentrations are possible, the metastable glassy state formed by thermally annealing a H2O/C60 fullerene vapour deposit was examined. These ‘trapped solutions’ of fullerene in an amorphous solid water (ASW) matrix were prepared in newly built apparatus (Chapter 3) using deposition rates of about

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29

Ainsworth, Catherine. "Structure-property relationships in conductive nanowire networks." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/structureproperty-relationships-in-conductive-nanowire-networks(0a8901bc-54be-4882-b49d-3e5515fac0df).html.

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This thesis studies networks of silver nanowires as a transparent conducting electrode material and presents an investigation into the relationship between electrical and optical properties in the networks. The work focusses on two main aspects: the production of networks via different deposition methods; and the development of a predictive model based on theory that relates the sheet resistance to the optical transmittance. The deposition methods of drop-casting, bar-coating and spray-coating are used to create networks and the randomness of these networks is compared using image analysis in

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30

Large, Matthew J. "Structure-property relationships in silver nanowire coatings." Thesis, University of Surrey, 2016. http://epubs.surrey.ac.uk/811081/.

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This report discusses new understanding of the fundamental links between the micro- and nano-structure of silver nanowire-based transparent conductive films and their resulting macroscopic electrical and optical properties. A new relationship between the optical transmittance and electrical sheet resistance is derived based on percolation theory. Application of this model to experimental data allows parameters of film micro-structure to be determined using macroscopic measurement techniques. Conversely, it is also possible to tailor the optoelectronic properties of a film by manipulation of th

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31

Todd, Jason G. "Structure-property relationships of novel cellulose esters." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/43633.

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Cellulose “waxy” (long-chain aliphatic) tri-esters of lauric (C₁₂), myristic (C₁₄), stearic (C₁₈), and eicosanoic (C₂₀) acids; mixed esters of lauric and acetic acids; and fluorinated mixed esters of 2,2,2-trifluoroethoxyacetic (TFEA) and acetic acids were synthesized in homogeneous DMAc/LiCl solution. Degree of substitution (DS) was conveniently controlled via stoichiometry, and fully-substituted cellulose derivatives were produced with little depolymerization. Thermal analysis of the C₁₂ - C₁₄ waxy tri-esters revealed separate melting transitions (T<sub>m,L</sub> and T<sub>m, H</sub>) for es

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32

Roy, Abhishek. "Structure Property Relationships of Proton Exchange Membranes." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/26365.

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The major challenge of the research was to characterize and develop concepts for establishing structure/property relationships between the functionality of the polymer backbone, the states of water and the membrane transport properties. Most of the hydrocarbon based random copolymers reported in the literature show reduced proton conductivity at low water content. This was attributed to the formation of an isolated morphology. Over the last few years our group has synthesized thermally stable multiblock copolymers with varying chemical structures and compositions. Block copolymers consist

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33

Aneja, Ashish. "Structure-Property Relationships of Flexible Polyurethane Foams." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/29887.

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This study examined several features of flexible polyurethane foams from a structure-property perspective. A major part of this dissertation addresses the issue of connectivity of the urea phase and its influence on mechanical and viscoelastic properties of flexible polyurethane foams and their plaque counterparts. Lithium salts (LiCl and LiBr) were used as additives to systematically alter the phase separation behavior, and hence the connectivity of the urea phase at different scale lengths. Macro connectivity, or the association of the large scale urea rich aggregates typically observed in f

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34

Kaushiva, Bryan D. "Structure-Property Relationships of Flexible Polyurethane Foams." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/28843.

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This study examined several structure-property features of flexible polyurethane foams that are important aspects of foam production. AFM and WAXS were used to demonstrate the existence, for the first time in typical polyurethane foam systems, of lamellae-like polyurea structures ca. 0.2 mm long and ca 5-10 nm across. Aggregations of these lamellae-like hard domains may be the polyurea balls typically observed via TEM. Diethanolamine, a widely used cross-linking agent in molded foams, was shown to disrupt ordering in the polyurea hard domains and alter the interconnectivity of hard domains

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35

Dixit, Manisha. "Structure-Property Correlations in Double Perovskite Systems." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366345489.

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36

Dias, Peter Simon. "Structure-Property Relationships in Some Novel Polyolefins." Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1213046882.

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37

BAFNA, AYUSH ASHOK. "POLYETHYLENE-CLAY NANOCOMPOSITES: PROCESSING-STRUCTURE-PROPERTY RELATIONSHIP." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1083810121.

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38

Liu, Qianhui. "Structure-Property Relationship of "Peptide-like" Polyesters." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1428336910.

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39

Sharits, Andrew R. "Structure-Property Relationships in Noncentrosymmetric Layered Perovskites." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1480524956906735.

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40

Sun, Hua. "Structure-Property Relationships of Polymeric Composite Systems." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1520439936691468.

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41

Young, Callum A. "Local structure/property relationships in functional materials." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:8eea6d96-5a48-4ed9-adad-e2b1fdc97acb.

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It is increasingly being realised that localised deviations from the average structure can play an important role in a material's properties, and hence an understanding of these deviations is essential when constructing a coherent picture of a system. In this thesis, both neutron and X-ray total scattering data have been collected and used to reveal information on three canonical systems: the high-temperature superconductor YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-x</sub>; the parent compound of the colossal magnetoresistive manganites, LaMnO<sub>3</sub>; and the oldest known magnetic material, Fe

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42

Watts, Sally. "Composition-structure-property relationships in bioactive glasses." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/5678.

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Hench developed the first bioactive material, Bioglass®, based on a soda-lime phospho-silicate glass. Most materials, elicit a neutral response when implanted into the human body. Bioglass®, however, was seen to create a positive response by depositing the body’s natural bone substance, Hydroxyapatite on its surface. Although it is recognised that compositional modifications effect bioactivity, there is very little comprehension of the composition-structureproperty relationships that result in such bioactivity. The objective of this investigation, therefore, was to study such fundamental relat

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43

Bafna, Ayush A. "Polyethylene-clay nanocomposites processing-structure-property relationship /." Cincinnati, Ohio : University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1083810121.

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44

Tate, Matthew Liam. "Structure-property relationships in oxide-ion conductors." Thesis, Durham University, 2017. http://etheses.dur.ac.uk/11949/.

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Literature review: Details the structure-property relationships of a selection of oxide-ion conductors and their potential use as solid electrolytes. Experimental methods: Describes the synthesis methods and analytical techniques used during this project. Structural characterisation and properties of the Bi1–xNbxO1.5+x materials (x = 0.0625, 0.11, and 0.12): The characterisation of tetragonal Bi0.9375Nb0.0625O1.5625 is reported for the first time. Thermal annealing of Bi0.89Nb0.11O1.61 and Bi0.88Nb0.12O1.62 resulted in decreases in oxide-ion conductivity due to partial cubic-to-tetragonal phas

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45

Boo, Woong Jae. "Structure-property relationship of nanoplatelet-reinforced polymer nanocomposites." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1353.

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46

Hall, Brendan. "Structure/Property relationships of P/M aluminium alloys /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17974.pdf.

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47

Zhokhavets, Uladzimir. "Composite conjugated polymer-fullerene films structure property relation /." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=981064299.

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48

Ahmed, Savant. "Stereochemical structure-property relationships in polynorbornene from simulation." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/11805.

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49

Hird, Bryn. "Structure-morphology-property relations in random styrene ionomers." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=70303.

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It is generally accepted that in random styrene ionomers the ion-pairs tend to associate to form small aggregates termed multiplets which are embedded in the polymer and act as crosslinks. At sufficiently high ion-contents, ion-rich regions termed clusters are believed to phase-separate from the polymer matrix. In this study, the dynamic mechanical properties of random styrene ionomers containing various concentrations of alkali-metal methacrylate groups were measured over a range of temperatures at several different frequencies. Two peaks are evident in the loss tangent (tan $ delta)$ vs. tem

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50

Rimmer, Nicholas. "Structure-property relationships in a resonant tunnelling diode." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308244.

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