To see the other types of publications on this topic, follow the link: Bio-based chemicals and polymers.

Dissertations / Theses on the topic 'Bio-based chemicals and polymers'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Bio-based chemicals and polymers.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Salazar, Hernandez Damian A. "Chemistry and Chemical Engineering Process for Making PET from Bio Based Monomers." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1449862726.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Miranda, Michael Angelo. "Bio Based Active Barrier Materials and Package Development." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1483450387453053.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Grosse, Charlotte. "Development of innovative bio-based treatments for wood modification with bio-polyesters." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0213.

Full text
Abstract:
La modification thermo-chimique est un procédé qui consiste à modifier la matière à cœur, avec pour objectif d’améliorer les propriétés du bois, en particulier la résistance fongique. Pour ce faire, conférer au bois un équilibre hygroscopique inférieur à la limite basse de développement des champignons est une approche qui permet en sus de limiter les variations dimensionnelles dues à l’humidité de l’air. Limiter les variations dimensionnelles augmente logiquement la durabilité des assemblages et des revêtements de surface, ce qui améliore encore les performances du matériau. Les constituants
APA, Harvard, Vancouver, ISO, and other styles
4

Grosse, Charlotte. "Development of innovative bio-based treatments for wood modification with bio-polyesters." Electronic Thesis or Diss., Université de Lorraine, 2018. http://www.theses.fr/2018LORR0213.

Full text
Abstract:
La modification thermo-chimique est un procédé qui consiste à modifier la matière à cœur, avec pour objectif d’améliorer les propriétés du bois, en particulier la résistance fongique. Pour ce faire, conférer au bois un équilibre hygroscopique inférieur à la limite basse de développement des champignons est une approche qui permet en sus de limiter les variations dimensionnelles dues à l’humidité de l’air. Limiter les variations dimensionnelles augmente logiquement la durabilité des assemblages et des revêtements de surface, ce qui améliore encore les performances du matériau. Les constituants
APA, Harvard, Vancouver, ISO, and other styles
5

Alessio, Caretto. "Green transformations of bio-based chemicals." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12727.

Full text
Abstract:
The thesis was focused on the development of green chemical technologies for the upgrading of platform molecules obtainable from renewable feedstocks. The platforms were chosen among those considered as the most promising for the development a new, sustainable, chemical industry. Levulinic acid was converted into compounds with a higher degree of oxygenation without actually using oxidizing agents. This was achieved by using dimehtyl carbonate (DMC), a green reagent and solvent, in basic catalysis. Bio-derived lactones (γ-valero-, γ-butyro-, δ-valero- and ε-capro-lactone) were reacted with thr
APA, Harvard, Vancouver, ISO, and other styles
6

Caretto, Alessio <1986&gt. "Green transformations of bio-based chemicals." Doctoral thesis, Università Ca' Foscari Venezia, 2014. http://hdl.handle.net/10579/5616.

Full text
Abstract:
This thesis work was focused on the development of green chemical technologies for the upgrading of platform molecules obtainable from renewable feedstocks through a biorefinery scheme. The feedstocks were chosen among those considered as the most promising for the development a new, sustainable, chemical industry. Levulinic acid (LA) can be converted into new derivatives with a higher degree of oxigenation (methyl levulinate and its 4,4-dimethyl ketal, dimethyl succinate and dimethyl 3-methylsuccinate), without actually using oxidizing agents. This result was achieved by using dimehtyl carbo
APA, Harvard, Vancouver, ISO, and other styles
7

Hoang, Dinh Dien Vinh. "New PEG-based polymer supports for solid phase hybrid chemical and bio-syntheses." Thesis, University of Strathclyde, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431836.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Duan, Zhouyang. "Water vapour permeability of bio-based polymers." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13609.

Full text
Abstract:
This project investigates the moisture barrier properties of bio-based polymers and ways of improving them. The first section addresses the effect of crystallinity on the water permeability of poly(lactic acid) (PLA). The second section investigates PLA/talc composites and PLA/ montmorillonite nanocomposites. The third section is focused on a new polymer, polybutylene succinate (PBS), and its nanocomposites with montmorillonite. In the first section, the water vapour transmission rates (WVTR) through samples of polylactic acid of different crystallinities have been measured. Three different gr
APA, Harvard, Vancouver, ISO, and other styles
9

Tran, Hoang Thanh Tuyen. "Waste biomass into value-added chemicals and bio-based polyurethanes." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/227762/1/Hoang%20Thanh%20Tuyen_Tran_Thesis.pdf.

Full text
Abstract:
The production of value-added chemicals and materials from fixed carbon resources such as lignocellulosic biomass has become a worldwide interest to respond to concern over environmental pollution and depletion of fossil fuels. However, the application of bio-derived products is still a considerable challenge due to their low mechanical properties and high processing costs. This thesis aims to investigate the impact of hydrothermal liquefaction conditions (e.g., catalysts, solvent, temperature, reaction time, etc.) on the conversion of agricultural waste biomass into valuable chemicals and pol
APA, Harvard, Vancouver, ISO, and other styles
10

Deshmukh, Smeet. "Responsive polymers for dynamic modulation of bio-macromolecular transport properties." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45926.

Full text
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2008.<br>Includes bibliographical references.<br>Responsive self-assembling polymers are used in wide range of applications in the food, pharmaceutical, agricultural, electronic and environmental industries, as well as in the biomedical field. The proper design of such polymers is critical for the particular applications being considered. In this thesis, different matrices that can be modulated dynamically by the application of appropriate stimuli were designed and used for two applications: electrophoretic
APA, Harvard, Vancouver, ISO, and other styles
11

Huang, Dan. "In Situ Infrared Studies of Photooxidation of Ethanol and Bacteria on TiO2-Based Catalysts." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1398093214.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Quattrosoldi, Silvia <1993&gt. "New bio-based polymers: from synthesis to characterization." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9597/4/Quattrosoldi_Silvia_tesi.pdf.

Full text
Abstract:
The environmental problems caused by human activity are one of the main themes of debate of the last Century. As regard plastics, the use of non-renewable sources together with the accumulation of waste in natural habitats are causing serious pollution problems. For this reason, a continuously growing interest is recorded around sustainable materials, potential candidate for the replacement of traditional recalcitrant plastics. Promising results have been obtained with biopolymers, in particular with the class of biopolyesters. Their potential biodegradability and biobased nature is parti
APA, Harvard, Vancouver, ISO, and other styles
13

Frenna, Giammarco <1992&gt. "LCA of the conversion of urban bio-wastes into bio-based polymers in a bio-refinery (PHA-based bioplastic)." Master's Degree Thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/14428.

Full text
Abstract:
INTRODUZIONE La sfida del progetto RES URBIS consiste nel ridurre i residui da smaltire dopo i trattamenti finali dei rifiuti con la possibilità di creare all’interno della bio-raffineria un polimero a base biologica che può essere introdotto nel settore della bioindustria al fine di chiudere il cerchio del riciclo in un’ottica di economia circolare. OBIETTIVI, AREA DI RICERCA, RISULTATI Questo studio è finalizzato a valutare gli impatti ambientali della conversione di diversi tipi di rifiuti urbani in bio-prodotti (come bioplastiche, solventi a base biologica, fibre per Biocompositi) basati
APA, Harvard, Vancouver, ISO, and other styles
14

Werth, Kathrin [Verfasser]. "Intensified Processes for a Sustainable Production of Bio-based Chemicals / Kathrin Werth." München : Verlag Dr. Hut, 2018. http://d-nb.info/1162767413/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Pham, Thi Nhung. "Fabry-Perot interferometer based on end-of-fiber polymer microtip for chemical sensing." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0006.

Full text
Abstract:
Les interféromètres Fabry-Perot (FPI) ont reçu un grand intérêt pour leur utilisation en tant que capteurs. Les FPI sont constitués d'une cavité optique avec des surfaces parallèles qui réfléchissent la lumière incidente, produisant un signal interférométrique optique. Ce signal dépend de la distance entre les surfaces réfléchissantes et de l'indice de réfraction de la cavité, qui sont sensibles aux variations d’humidité, de température, de pression et du matériau. Les FPI peuvent être attachés à des fibres optiques, qui fonctionnent comme un guide d'ondes pour le signal incident et le signal
APA, Harvard, Vancouver, ISO, and other styles
16

McKeown, Paul. "Design of initiators for the production of bio-based polymers." Thesis, University of Bath, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.715295.

Full text
Abstract:
The current plastic production and use is unsustainable, relying on non-renewable sources. The pollution caused by petro-chemical based plastics is also becoming a problem due to non-biodegradation of these materials. The research into alternative bio-based plastics represents an important challenge in both academia and industry. At the forefront of such research is poly(lactic acid) (PLA), a biodegradeable polyester that also boasts biocompatibility. Chapter 1 discusses properties and synthesis routes for PLA as well initiators for the stereoselective polymerisation of rac-lactide. In Chapter
APA, Harvard, Vancouver, ISO, and other styles
17

Innocenti, Giada <1991&gt. "Catalysis for chemicals production from bio-based building blocks: examples of industrial relevance." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amsdottorato.unibo.it/8764/1/Tesi_Dottorato_Giada_Innocenti.pdf.

Full text
Abstract:
The research work presented in this PhD thesis is focused on two research topics which aim is to enhance the sustainability of the modern biorefinery. In fact, the production of an advanced biofuel such as 1-butanol is studied in the first part, while the second part deals with the valorisation of glycerol, which is a biodiesel co-product. Therefore, in the first part of the thesis 1-butanol production by means of the Guerbet reaction is studied. The catalytic synthesis of 1-butanol is more desirable than ABE fermentation because it allows to reach higher productivity, lowering the separation
APA, Harvard, Vancouver, ISO, and other styles
18

Deans, Taneisha. "Using Nature as a way to Flame Retard Synthetic Materials." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case149154227971565.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Kalita, Deep Jyoti. "Polymers and Coatings Derived From Novel Bio-Based Vinyl Ether Monomers." Diss., North Dakota State University, 2018. https://hdl.handle.net/10365/27852.

Full text
Abstract:
To fulfill the demand for household, industrial, light weight transportation, health, and cosmetic products etc., production of polymeric materials has been increasing every year. However, limited resource of fossil fuel is threatening the sustainability of the raw materials used to produce these products. These products have very low to no biodegradability, thereby staying in the ecosystem for long time causing serious threats. Increasing environmental concerns and strict regulations has made renewable based materials suitable for the development of environmental friendly polymers with sustai
APA, Harvard, Vancouver, ISO, and other styles
20

Banella, Maria Barbara <1989&gt. "New strategies for the preparation of high-perfomance bio-based polymers." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amsdottorato.unibo.it/8388/1/Banella_MariaBarbara_tesi.pdf.

Full text
Abstract:
Nowadays there is a great interest to substitute petroleum-derived polymers with more sustainable materials. In this thesis the preparation of monomers, polymers and copolymers from renewable resources was carried out, following two strategies. The first one consisted in developing new routes to obtain the traditional polymers from biomass instead that from petroleum. Then, the synthesis of p-toluic acid (the terephthalic acid (TPA) precursor, and monomer for polyethylene terephthalate (PET)) from natural molecules (acrylic and sorbic acids) was set up by exploiting a Diels-Alder (DA) reaction
APA, Harvard, Vancouver, ISO, and other styles
21

Giacobazzi, Greta <1993&gt. "Preparation and characterization of multifunctional bio-based polymers exhibiting enhanced properties." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9717/5/Giacobazzi_Greta_tesi.pdf.

Full text
Abstract:
Driven by environmental reasons and the expected depletion of crude oil, bio-based polymers are currently undergoing a renaissance in the attempt to replace fossil-based ones. The present work aims at contributing in the development of the steps that start from biomass and move to new polymeric multifunctional materials. The study focuses on two bio-based building blocks (itaconic and vanillic acids) characterized by exploitable functionalities, i.e. a lateral double bond and a substituted aromatic ring respectively, able to confer interesting properties to the final polymers. The lateral do
APA, Harvard, Vancouver, ISO, and other styles
22

PIRANI, FEDERICA. "Bio-oriented Micro- and Nano- Structures Based on Stimuli-responsive Polymers." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2706874.

Full text
Abstract:
Nowadays, the ability to pattern surfaces on the micro- and nano- scale is the basis for a wide range of research fields. Over last few decades, a lot of processing technologies offer the possibility to fabricate complex 2D and 3D polymeric designs which are mostly static in nature since they cannot be physically and chemically modified once fabricated. The aim of the present thesis is to overcome such a limitation, exploiting stimuli-responsive materials (Chapter I). We allow to engineer polymeric architectures adding interesting functionalities, by providing an active manipulation of pre-str
APA, Harvard, Vancouver, ISO, and other styles
23

Alves, Margot. "Carbon dioxide and vegetable oil for the synthesis of bio-based polymer precursors." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0129/document.

Full text
Abstract:
Bien que thermodynamiquement et cinétiquement stable, le dioxyde de carbone est une molécule qui peut être convertie en carbonates cycliques à cinq ou six atomes respectivement au départ d’époxydes ou d’oxétanes moyennant l’utilisation d’un catalyseur approprié. Ces carbonates cycliques sont utilisés comme solvants verts, électrolytes pour les batteries au lithium ou comme intermédiaires pour la synthèse de polymères. Cependant, les performances catalytiques doivent être améliorées en particulier pour lecouplage du CO2 avec les huiles végétales époxydées ou les oxétanes. Dans ce contexte, nous
APA, Harvard, Vancouver, ISO, and other styles
24

Tou, Zhi Qiang. "Fiber optics chemical sensors based on responsive polymers." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/25627.

Full text
Abstract:
Fiber optic chemical sensors (FOCS) have made tremendous progress since developments began in the 1960s with continuous reports of new configurations, materials and applications even today. Techniques like interferometry and plasmonic resonance are set to form the next generation of FOCS, representing a deviation from conventional luminescence based techniques. The thesis presents an optic fiber sensor platform for localized surface plasmon resonance (LSPR) by using a speciality photonic crystal fiber (PCF) to excite LSPR via cladding modes. The sensor offers facile fabrication and achieves hi
APA, Harvard, Vancouver, ISO, and other styles
25

Bonnaillie, Laetitia Mary. "Bio-based polymeric foam from soybean oil and carbon dioxide." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 258 p, 2008. http://proquest.umi.com/pqdweb?did=1456290941&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.

Full text
APA, Harvard, Vancouver, ISO, and other styles
26

Zhang, Yali. "Metabolic Engineering of Clostridium tyrobutyricum for Production of Biofuels and Bio-based Chemicals." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1245385394.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Thanamongkollit, Narin. "Modification of Tung Oil for Bio-Based Coating." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1218080747.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Muralidhara, Anitha. "Physico-chemical safety issues pertaining to biosourced furanics valorization with a focus on humins as biomass resource." Thesis, Compiègne, 2019. http://www.theses.fr/2019COMP2508.

Full text
Abstract:
Le travail de recherche présenté dans ce manuscrit fait partie intégrante d’un projet de recherche collaborative financé par l’Union-Européenne (Il s’agit d’un projet H2020 de type « Marie-Curie Action »), dénommé HUGS (pour « HUmins as Green and Sustainable precursors for eco-friendly building-blocks and materials »). Ce projet de recherche implique 5 partenaires (INERIS/UTC, France, Avantium, Pays-Bas, Université de Sophia Antipolis/CNRS, France, l’université de Cordoue, Espagne et le LIKAT de l’université de Rostock en Allemagne). La recherche menée dans ce projet est essentiellement struct
APA, Harvard, Vancouver, ISO, and other styles
29

Vernaez, Oscar. "Evaluation of an oil-based self-degradable gel for oil production applications." Thesis, Pau, 2015. http://www.theses.fr/2015PAUU3020/document.

Full text
Abstract:
Dans cette thèse, une solution de caoutchouc de styrène-butadiène (SBR) réticulé avec du peroxyde organique, a été transformé en un gel autodégradable par l’ajout d’hydropéroxyde comme agent de dégradation. La formulation a été caractérisée en rhéologie dynamique. Les spectres de temps de relaxation ont été calculés à partir des modules dynamiques de cisaillement, par une nouvelle méthode développée dans ces travaux présentée avec une revue complète de méthodes pour le calcul des spectres de relaxation à partir de données de rhéométrie de cisaillement. Des expériences in-situ et ex-situ ont ét
APA, Harvard, Vancouver, ISO, and other styles
30

Seo, Junyoung. "D-Glucaric Acid Based Polymers and Crosslinker:Polyesters Bearing Pendent Hydroxyl Groups andDissolvable Chemically Crosslinked Gels." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1563550430288194.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Velamakanni, Aruna M. "Functional silane based polymers for sensing and separations /." View online ; access limited to URI, 2006. http://0-digitalcommons.uri.edu.helin.uri.edu/dissertations/AAI3248243.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Behrendt, Felix Nicolas [Verfasser], and Helmut [Akademischer Betreuer] Schlaad. "New bio-based polymers : synthesis and polymerization of cystine-based macrocycles / Felix Nicolas Behrendt ; Betreuer: Helmut Schlaad." Potsdam : Universität Potsdam, 2018. http://d-nb.info/1219077917/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Kittle, Joshua Daniel. "Characterization of Cellulose and Chitin Thin Films and Their Interactions with Bio-based Polymers." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/26806.

Full text
Abstract:
As the two most abundant natural polymers on earth, cellulose and chitin have attracted increasing attention as a source of renewable energy and functional materials. Thin films of cellulose and chitin are useful for studying interactions of these materials with other natural and synthetic molecules via techniques such as quartz crystal microbalance with dissipation monitoring (QCM-D) and surface plasmon resonance (SPR). Because of the difficulty of extracting native cellulose, regenerated cellulose (RC), sulfated nanocrystalline cellulose (SNC), and desulfated nanocrystalline cellulose (DNC)
APA, Harvard, Vancouver, ISO, and other styles
34

Modi, Sunny J. "A novel use of bio-based natural fibers, polymers, and rubbers for composite materials." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1403205265.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Otto, Kevin Michael. "Characterization of Highly Concentrated Elastin-like Polypeptide Solutions:Rheometric Properties and Phase Separation Analysis." Cleveland State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=csu1431697338.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Shiman, Dmitriy I., Vladimir Sayevich, Christian Meerbach, et al. "Robust Polymer Matrix Based on Isobutylene (Co)polymers for Efficient Encapsulation of Colloidal Semiconductor Nanocrystals." American Chemical Association, 2019. https://tud.qucosa.de/id/qucosa%3A74322.

Full text
Abstract:
We introduce new oxygen- and moisture-proof polymer matrixes based on polyisobutylene (PIB) and its block copolymer with styrene [poly(styrene-block-isobutylene-blockstyrene), PSt-b-PIB-b-PSt] for the encapsulation of colloidal semiconductor nanocrystals. In order to prepare transparent and processable composites, we developed a special procedure of nanocrystal surface engineering including ligand exchange of parental organic ligands to inorganic species followed by the attachment of specially designed short-chain PIB functionalized with an amino group. The latter provides excellent compatibil
APA, Harvard, Vancouver, ISO, and other styles
37

Xiao, Ming. "BIO-INSPIRED MELANIN-BASED STRUCTURAL COLORS THROUGH SELF-ASSEMBLY." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron149927021458423.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Farid, Osama. "Investigating membrane selectivity based on polymer swelling." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/11774/.

Full text
Abstract:
Nanofiltration has many potential applications as a separation technology for processes that use mixtures of aqueous and organic solvents, for example alcohol/water mixtures. Membrane systems are well established for separations carried out in aqueous media, however they have seen a much slower rate of uptake in non-aqueous processes or with aqueous/organic mixtures. This is because the interaction between membrane and solvent(s) dictates both the permeability and selectivity, and there is currently limited criterion for identifying the theoretical performance of a membrane based on the proper
APA, Harvard, Vancouver, ISO, and other styles
39

Karlsson, Fredrik, and Erik Söderlöv. "Polymer-based conductive fibers." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-10680.

Full text
Abstract:
Conductive polymers, since from their discovery, have become a prominent area of research and found many useful applications in all fields of our daily life. Examples are light emitting diodes, heat generation, chemical sensors and electro-active membranes. Polymer coated textile substrates give flexible and lightweight materials. One well utilized and thoroughly explored conductive polymer is poly(3,4-ethylenedioxythiophene) also known as PEDOT. Although there are different ways to produce PEDOT one of the most common is the VPP technique. The typical procedure when using VPP is to introduce
APA, Harvard, Vancouver, ISO, and other styles
40

Wafy, Tamer. "Characterization of chemical and mechanical properties of polymer based nanocomposites." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/characterization-of-chemical-and-mechanical-properties-of-polymer-based-nanocomposites(d04d59b3-492f-4611-8a62-e3132a995d85).html.

Full text
Abstract:
One of the most significant issues in nanocomposite performance is improving the dispersion of carbon nanotubes (CNTs) in thermosetting or thermoplastic polymers in order to gain good mechanical properties. Several studies have investigated the fabrication of nanocomposites based on carbon nanotubes and analysed properties, but there is still insufficient data on their structure-property relationships. This thesis has investigated the central importance of stress transfer Raman studies in epoxy composites reinforced with single-walled carbon nanotubes (SWCNTs), double-walled carbon nanotubes (
APA, Harvard, Vancouver, ISO, and other styles
41

Tang, Qingmeng. "Preparation and Characterization of Electrically Conductive Graphene-Based Polymer Nanocomposites." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1386260373.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Vaeth, Kathleen Michelle 1972. "Parylene-based chemical vapor deposition of electroluminescent polymer films used in polymer light emitting diodes." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9111.

Full text
Abstract:
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1999.<br>Includes bibliographical references (leaves 136-143).<br>The effects of reaction and deposition conditions on the properties of the conjugated electroluminescent polymer poly(p-phenylene vinylene) (PPV) prepared by parylene-based chemical vapor deposition (CVD) are explored in this thesis. A reactor for CVD of PPV is designed and constructed, and both a,a'-dibromo p-xylene and a,a.'-dichloro p-xylene are tested as source monomers. By sufficiently baking out the CVD system, reproducible fabrication of
APA, Harvard, Vancouver, ISO, and other styles
43

Sisk, David Theodore. "I. Tunable Luminescence in Dendronized Poly(phenyleneethynylene)s Through Post-Polymerization Chemical Modification II. Rigid, Helical Polymers Based Upon Chiral Hydrobenzoin." Diss., The University of Arizona, 2007. http://hdl.handle.net/10150/194768.

Full text
Abstract:
Dendritic encapsulation of poly(phenyleneethynylene)s or PPEs has been shown to enhance photoluminescent quantum efficiency and facilitate energy transfer by funneling photonic energy absorbed on the dendron periphery efficiently to the conjugated polymeric core. The research presented herein focuses on incorporating degradable dendron onto PPEs, examining whether or not similar benefits were conferred upon the proposed system and controlling polymer luminescence through the elimination of the insulating macromolecules. PPEs appended with disassembling dendrons of various generation sizes we
APA, Harvard, Vancouver, ISO, and other styles
44

Hibert, Geoffrey. "Glycolipids : from synthesis and self-assembly studies to the design of original bio-based polymers." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0249/document.

Full text
Abstract:
Ces travaux de thèse traitent de l’étude de glycolipides et plus précisément d’esters de trehalose pour la synthèse de nouveaux polymères bio-sourcés. Des monoesters et diesters de trehalose ont ainsi été synthétisés par estérification des alcools primaires du trehalose avec des acides gras selon deux voies de synthèse. La première utilisant un agent de couplage peptidique ne nécessite pas l’utilisation de groupement protecteur pour estérifier sélectivement les alcools primaires. La deuxième est une estérification sélective catalysée par une lipase. L’auto-assemblage des esters de tréhalose a
APA, Harvard, Vancouver, ISO, and other styles
45

Shim, Jae-Bum. "Complexity in non-isothermal polymerization of PMMA based bone cement: thermal, chemical, and mechanical effects on polymerization fronts /." Related electronic resource:, 2007. http://proquest.umi.com/pqdweb?did=1342740171&sid=2&Fmt=2&clientId=3739&RQT=309&VName=PQD.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Devasurendra, Amila Manuradha. "Pyrrole-Based Conductive Polymer Composites for Electroanalysis and Chemical Separations." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1513257195906402.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Addagulla, Swapna. "Functional silane based co-polymers for biofuntionalization studies, chemical sensing and separations /." View online ; access limited to URI, 2009. http://0-digitalcommons.uri.edu.helin.uri.edu/dissertations/AAI3401132.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Song, Lin. "Chemical Modification of Starch and Preparation of Starch-Based Nanocomposites." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1275581955.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Mu, Gaoyan. "Synthesis and Self-assembly of Star-shape Giant Molecules Based on Hydrophilic Polyhedral Oligomeric Silsesquioxane (POSS)." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1491142552670233.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Molnar, Linda K. (Linda Katherine) 1968. "Polymer-based solvents for minimizing pollution during the synthesis of fine chemicals." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38390.

Full text
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1996.<br>Vita.<br>Includes bibliographical references (leaves 126-128).<br>by Linda K. Molnar.<br>Ph.D.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!