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Relevant bibliographies by topics / Polymer chain conformation / Dissertations / Theses

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Dissertations / Theses on the topic 'Polymer chain conformation'

Author: Grafiati

Published: 8 February 2025

Last updated: 31 July 2025

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1

Arrighi, Valeria. "Chain conformation of a main-chain thermotropic liquid crystalline polymer." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/46651.

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2

Ube, Toru. "Orientation and Conformation of Single Polymer Chain Studied by Scanning Near-Field Optical Microscopy." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/142243.

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3

Nasreddine, Victor Fuad. "Solid state nuclear magnetic resonance spectroscopy of polymer thin films : chain conformation, dynamics, and morphology." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=83081.

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This dissertation presents solid-state NMR studies of the chain conformation, dynamics and morphology of three adsorbed polymer systems: two random semi-crystalline copolymers, poly(ethylene-co-acrylic acid) (PEA) and poly(propylene-co-acrylic acid) (PPA), and an amorphous homopolymer, poly(n-butyl methacrylate) (PnBMA). Zirconia (ZrO2) was chosen as the substrate for all three polymers since the binding of carboxylic acids to this metal oxide is well understood. The choice of polymers was based on their particular bulk conformational and dynamic properties as well as their common use i

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4

Zhao, Yiqiang. "Thermodynamic and Dynamic Behaviors of Self-Organizing Polymeric Systems." Case Western Reserve University School of Graduate Studies / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=case1094190642.

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5

Zhang, Qiang. "Chain conformation of cellulose, a sustainable biopolymer, and its derivatives in ionic liquid studied by small-angle neutron and X-ray scattering." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASF075.

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La cellulose, un biopolymère renouvelable, peut remplacer les matériaux non biodégradables dans les applications industrielles. Elle est d'abord dissoute, puis transformée (par exemple en fibres) et enfin « régénérée » (recristallisation par ajout d'eau). Cependant, la dissolution de la structure cristalline très stable nécessite des solvants agressifs et polluants, au contraire des liquides ioniques (IL). Cette thèse étudie le processus de dissolution et l'état dissous pour deux liquides ioniques sélectionnés comme solvants efficaces. Nous étudions la structure et la conformation des chaînes

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6

Ecker, Christof. "Conformations of single polymer chains on surfaces." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2005. http://dx.doi.org/10.18452/15324.

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In dieser Arbeit wurden auf Substratoberflächen adsorbierte Polymermoleküle mit Rasterkraftmikroskopie (RKM) untersucht. Dabei war die Form der Moleküle (Konformation) von besonderem Interesse. Sie ist von zentralerer Bedeutung in der Polymerphysik und wird üblicherweise in Lösung und mit Streumethoden untersucht. Polymerkonformationen auf Oberflächen sind heutzutage noch wenig untersucht. Üblicherweise wird das Verhalten nach dem so genannten Wormlike-Chain Modell angenommen. Es basiert auf der Annahme, dass die Kettenbiegung nur aus thermischen Fluktuationen resultiert, so dass sich

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7

Qian, Hong. "Conformation and dynamics of main-chain liquid crystalline polymers." Thesis, Heriot-Watt University, 2004. http://hdl.handle.net/10399/245.

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8

Sakaue, Takahiro. "Conformational transition of a semiflexible polymer chain : effect of chain length, stiffness and electrostatics." 京都大学 (Kyoto University), 2004. http://hdl.handle.net/2433/147792.

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9

Zuber, Mohammad. "Main chain liquid crystalline polyethers based on conformational isomerism." Case Western Reserve University School of Graduate Studies / OhioLINK, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=case1056133548.

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10

Nam, Sunghyun. "Dynamics of Cyclic and Linear Poly(oxyethylene) and Threading Conformation in Their Blends." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14135.

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Chemically identical but topologically different cyclic and linear polymers not only result in marked differences in dynamics, but also lead to unique transport properties of their blends, where cyclic polymers have chances to be threaded onto the linear polymers. This dissertation addresses the effect of ring architecture on dynamics using different time/length scale techniques: self-diffusion coefficients, NMR spin-spin relaxation time (T2) and bulk viscosity. In deuterated water, synthesized cyclic poly(oxyethylene) (CPOE) (400-1500 g/mol) diffused faster than corresponding linear POE (LP

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11

Ecker, Christof. "Conformations of single polymer chains on surfaces non-equilibrium, equilibrium and manipulation /." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=976610140.

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12

Higuchi, Yuji. "Conformational transition of single semiflexible polymer chain as a coarse-grained model of DNA." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/142357.

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13

SEKINE, Ryojun. "Studies on Conformational Characteristics and Self-Assembled Structures of Polymers in Space-Limited Systems." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/84828.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第14871号<br>工博第3139号<br>新制||工||1470(附属図書館)<br>27293<br>UT51-2009-K667<br>京都大学大学院工学研究科高分子化学専攻<br>(主査)教授伊藤紳三郎, 教授長谷川博一, 教授金谷利治<br>学位規則第4条第1項該当

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14

Veissier, Valérie. "Etude de la dynamique locale dans les polymeres en masse par declin d'anisotropie de fluorescence." Paris 6, 1987. http://www.theses.fr/1987PA066063.

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La fonction d'autocorrelation orientationnelle a ete ajutee au modele de diffusion et perte generalisee (gdl). La signification physique des temps de correlation relatifs aux modeles conformationels a ete precisee et l'influence de la structure du polymere sur ces parametres a ete demontree. Etude de l'interaction entre la sonde fluorescente et le polymere et etude theorique de son influence sur la dynamique de chaine

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15

Le, Treut Guillaume. "Models of chromosome architecture and connection with the regulation of genetic expression." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS411/document.

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Plusieurs indices suggèrent que le repliement du chromosome et la régulation de l’expression génétique sont étroitement liés. Par exemple, la co-expression d’un grand nombre de gènes est favorisée par leur rapprochement dans l’espace cellulaire. En outre, le repliement du chromosome permet de faire émerger des structures fonctionnelles. Celles-ci peuvent être des amas condensés et fibrillaires, interdisant l’accès à l’ADN, ou au contraire des configurations plus ouvertes de l’ADN avec quelques amas globulaires, comme c’est le cas avec les usines de transcription. Bien que dissemblables au prem

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16

Rauch, Sebastian, Klaus-Jochen Eichhorn, Ulrich Oertel, Manfred Stamm, Dirk Kuckling, and Petra Uhlmann. "Temperature responsive polymer brushes with clicked rhodamine B: synthesis, characterization and swelling dynamics studied by spectroscopic ellipsometry." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-139314.

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Here, we report on a new temperature responsive polymer brush system with a terminal “click” functionality. Bifunctionalized poly(N-isopropylacrylamide) (PNiPAAm) with distinct functional end groups was synthesized by atom transfer radical polymerization (ATRP) and grafted to a modified silicon substrate. The presence of the active terminal alkyne functionality is validated using an azide-modified rhodamine B (N3-RhB) via copper(I) catalyzed alkyne–azide cycloaddition (CuAAC). The optical properties and swelling dynamics of an N3-RhB modified PNiPAAm brush are analyzed in dry state and in situ

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17

Rauch, Sebastian, Klaus-Jochen Eichhorn, Ulrich Oertel, Manfred Stamm, Dirk Kuckling, and Petra Uhlmann. "Temperature responsive polymer brushes with clicked rhodamine B: synthesis, characterization and swelling dynamics studied by spectroscopic ellipsometry." Royal Society of Chemistry, 2012. https://tud.qucosa.de/id/qucosa%3A27823.

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Here, we report on a new temperature responsive polymer brush system with a terminal “click” functionality. Bifunctionalized poly(N-isopropylacrylamide) (PNiPAAm) with distinct functional end groups was synthesized by atom transfer radical polymerization (ATRP) and grafted to a modified silicon substrate. The presence of the active terminal alkyne functionality is validated using an azide-modified rhodamine B (N3-RhB) via copper(I) catalyzed alkyne–azide cycloaddition (CuAAC). The optical properties and swelling dynamics of an N3-RhB modified PNiPAAm brush are analyzed in dry state and in situ

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18

Jones, Ronald L. "Chain conformation and phase behavior in polymer blend thin films." 2003. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-217/index.html.

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19

Ou-Yang, Wen-Chung, and 歐陽文忠. "A Study on the Global Chain Conformation and Supramolecular Structure of Electroluminescent Semiconducting Polymer." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/19318681408558344356.

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博士<br>國立清華大學<br>化學工程學系<br>94<br>Abstract In this research, the effects of the solvent nature, concentration of solution and temperature which affect the morphology of MEH-PPV polymer chains in solution state were inquired. We discover, in spite of solvent nature and the molecular weight of MEH-PPV, the existence of aggregation phenomenon even in ultra dilute solution as the amount of molecular chains of MEH-PPV larger than 109/ml, it implicates aggregations could be a colligative property which depends only on the number of solute molecular chains. Because molecular chains’ self-assembling m

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20

Malek, Ali. "Conformational Dynamics of Living Polymers." Doctoral thesis, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E449-1.

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21

Zhang, Wuyang. "Conformation of 2-fold Anisotropic Molecules Confined on a Spherical Surface." Thesis, 2012. http://hdl.handle.net/10012/6581.

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Anisotropic molecules confined on a spherical or other curved surface can display coupled positional and orientational orderings, which make possible applications in physics, chemistry, biology, and material science. Therefore, controlling the order of such system has attracted much attention recently. Several distinct conformations of rod-like or chain-like molecules confined on a spherical surface have been predicted, including states such as tennis-ball, rectangle, and cut-and-rotate splay. These conformations have four +1/2 defects and are suggested to dominate over the splay conformation

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22

Ramkumar, S. G. "Controlling The Conformation Of Polymers In Solution And Synthesis And Characterization Of 'Clickable' Polyesters." Thesis, 2010. https://etd.iisc.ac.in/handle/2005/1882.

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The thesis constitutes investigations from two distinct areas of research. One part deals with controlling and modulating the conformation of linear polymer in solution. Folding of a polymer chain has been achieved by utilising weak non-covalent interactions interaction like metal ion binding, charge-transfer complex formation and solvophobic effect in tandem. The second part of the thesis deals with synthesis and characterization of end-functionalized polymers prepared by melt-transesterification. The thesis is divided into five chapters. Chapter 1 provides a general introduction on foldame

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23

Ramkumar, S. G. "Controlling The Conformation Of Polymers In Solution And Synthesis And Characterization Of 'Clickable' Polyesters." Thesis, 2010. http://hdl.handle.net/2005/1882.

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The thesis constitutes investigations from two distinct areas of research. One part deals with controlling and modulating the conformation of linear polymer in solution. Folding of a polymer chain has been achieved by utilising weak non-covalent interactions interaction like metal ion binding, charge-transfer complex formation and solvophobic effect in tandem. The second part of the thesis deals with synthesis and characterization of end-functionalized polymers prepared by melt-transesterification. The thesis is divided into five chapters. Chapter 1 provides a general introduction on foldamer

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24

Hsiao, An-En, and 蕭安恩. "Studies of poly(para-phenylene)s on their structures and properties relationships and of characterization on conformation of single conjugated polymer chain." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/72030730780546300434.

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碩士<br>國立清華大學<br>化學工程學系<br>95<br>My study includes two following parts. The first is to improve Yamamoto polycondensation to yield high molecular weight poly(para-phenylene)s (PPPs) and to characterize their properties. PPPs are one of the most important classes of conjugated polymers and have been the subject of extensive research, particularly as active materials for use in light-emitting diodes (LEDs) and solar cell. These materials have been particular interest as potential blue emitters in such devices. The two main polycondensation methods used are the Suzuki polycondensation of aryl

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25

Yu-ShengLiu and 劉育昇. "Conformational transitions of a single polymer chain due to field induced polarization." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/2764q4.

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26

Ecker, Christof [Verfasser]. "Conformations of single polymer chains on surfaces : non-equilibrium, equilibrium and manipulation / von Christof Ecker." 2004. http://d-nb.info/976610140/34.

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27

(8407140), Saadia T. Chaudhry. "CHAIN-LENGTH PROPERTIES OF CONJUGATED SYSTEMS: STRUCTURE, CONFORMATION, AND REDOX CHEMISTRY." Thesis, 2021.

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The development of solution-processable semiconducting polymers has brought mankind’s long-sought dream of plastic electronics to fruition. Their potential in the manufacturing of lightweight, flexible yet robust, and biocompatible electronics has spurred their use in organic transistors, photovoltaics, electrochromic devices, batteries, and sensors for wearable electronics. Yet, despite the successful engineering of semiconducting polymers, we do not fully understand their molecular behavior and how it influences their doping (oxidation/reduction) properties. This is especially true for donor

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28

Chang, Wei-Shun 1973. "Single molecule study on the conformation, orientation and diffusion anisotropy of conjugated polymer chains in a liquid crystal matrix." Thesis, 2007. http://hdl.handle.net/2152/3554.

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The nature of the solvent plays an important role in the conformation and orientation of polymers in solution. A particularly interesting case is when the solvent itself possesses order, such as when dissolving the polymer in a LC. In this dissertation, the morphology and diffusion behavior of the conjugated, stiff polymer MEH-PPV, (poly[2-methoxy-5((2-ethylhexyl)oxy)-1,4-phenylenevinylene]), in liquid crystal (LC) solvents have been investigated. Using polarization sensitive fluorescence correlation spectroscopy, it was found that in a nematic LC the polymer molecules are extended and highly

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29

Lu, Tzu-Chung, and 盧子中. "Exploring the Correlation between Molecular Conformation and UV Absorption Spectra of Conducting Polymers with Conjugated Side-Chains." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/19362845794970361850.

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碩士<br>國立臺灣大學<br>高分子科學與工程學研究所<br>100<br>We employed all-atom molecular dynamics simulation and quantum mechanical methods to explore the relationship between molecular conformation and UV absorption spectra of polythiophene-based conducting polymers. The UV spectrum of 3HT monomer was observed in blue-shift, because of the deviation from coplanar of main chain; the D4QT was found in red-shift, due to the torsional deviation and competitive effect between conjugated main and side chain. In the ordered state, the P3HT and PDBT chains experience the pi-pi interaction and result in more coplanarity

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30

Lin, Yu-Chen, and 林喻偵. "I.Metal Ion-Responsive Functional Polymers with Different Backbone Structures: Flexible/Rigid Hydrocarbon Chain and Ether LinkageII.Metal Ion-Induced Random Coil/Helix Conformation Transition of Functional Oligo-L-Lysine Based OctamersIII.Acridinium Sal." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/54682272402370073819.

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博士<br>國立臺灣大學<br>化學研究所<br>99<br>Chapter I describes the development of side-chain functionalized polymers containing metal ion-responsive units with flexible/rigid backbone structures that have potential in developing metal ions sensory materials or self-assembly into hierarchical ordered structures. Poly-norbornene based homopolymer derived from ring-opening metathesis polymerization (ROMP) is regarded as rigid backbones because of the bicyclic constraints of norbornene. Decrease of backbone rigidity can be achieved through the alternating copolymerization of an appropriate cyclic olefin comon

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