Relevant bibliographies by topics / Conformation of polymers

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Conformation of polymers'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Conformation of polymers"

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Qiu, Xing, Cunliang Hu, Jingqing Li, Dinghai Huang, and Shichun Jiang. "Role of conformation in crystal formation and transition of polybutene-1." CrystEngComm 21, no. 29 (2019): 4243–49. http://dx.doi.org/10.1039/c9ce00576e.

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Polymer conformation is the molecular basis underlying essentially all physical properties of polymers, and chain conformation and conformational energy play central roles in crystalline structure formations and structure transitions of polymers.
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Hore, Michael J. A. "Polymers on nanoparticles: structure & dynamics." Soft Matter 15, no. 6 (2019): 1120–34. http://dx.doi.org/10.1039/c8sm02110d.

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Tsai, Hsiang-Chi, Yan-Ling Yang, Yu-Jane Sheng, and Heng-Kwong Tsao. "Formation of Asymmetric and Symmetric Hybrid Membranes of Lipids and Triblock Copolymers." Polymers 12, no. 3 (2020): 639. http://dx.doi.org/10.3390/polym12030639.

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Hybrid membranes formed by co-assembly of AxByAx (hydrophilic-hydrophobic-hydrophilic) triblock copolymers into lipid bilayers are investigated by dissipative particle dynamics. Homogeneous hybrid membranes are developed as lipids and polymers are fully compatible. The polymer conformations can be simply classified into bridge- and loop-structures in the membranes. It is interesting to find that the long-time fraction of loop-conformation ( f L ) of copolymers in the membrane depends significantly on the hydrophilic block length (x). As x is small, an equilibrium f L * always results irrespect
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Li, Yong, Dung D. Nguyen, Kuldeep Shetye, and Zhonghua Peng. "Synthesis and Optical Properties of Triphenylene-Based Donor-Donor and Donor-Acceptor Conjugated Polymers: A Comparative Study." International Journal of Polymer Science 2020 (November 17, 2020): 1–12. http://dx.doi.org/10.1155/2020/8866816.

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Two new conjugated polymers (P1 and P2), containing a bithiophene donor unit coupled with either a triphenylene donor unit or an imide-functionalized triphenylene acceptor unit in the backbone, have been synthesized, structurally characterized, and comparatively studied by using 1H NMR, FT-IR, gel permeation chromatography, differential scanning calorimetry, cyclic voltammetry, ultraviolet-visible absorption, and fluorescence spectroscopy. Both polymers are amorphous in nature and thermally stable up to 450°C. The inclusion of the imide functionalization in the triphenylene unit significantly
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APRYATINA, Kristina V., Ekaterina K. TKACHUK, and Larisa A. SMIRNOVA. "CONFORMATIONAL CONDITIONS OF CHITOSAN MACROMOLECULES AND THEIR INFLUENCE ON THE EFFICIENCY OF CHITOSAN POLYMERIZATION PROCESS WITH 2-HYDROXYETHYL METHACRYLATE AND N-VINYLPYRROLIDONE." Periódico Tchê Química 17, no. 34 (2020): 562–77. http://dx.doi.org/10.52571/ptq.v17.n34.2020.586_p34_pgs_562_577.pdf.

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Modification of chitosan with biocompatible synthetic polymers is important for the development of biodegradable medical materials with a tailor-made complex of properties. The issue of the influence of a polysaccharide macromolecule conformation on the synthesis and properties of the hybrid products remains acute. Conformational transitions of chitosan and their influence on the process of grafted polymerization of 2-hydroxyethyl methacrylate and N-vinylpyrrolidone onto the polymer and the properties of their copolymers were studied. To interpret the peculiarities of chitosan solutions proper
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Kugimoto, Daisuke, Aoi Taniguchi, Masaki Kinoshita, and Isamu Akiba. "Effect of Molecular Architecture on Associating Behavior of Star-Like Amphiphilic Polymers Consisting of Plural Poly(ethylene oxide) and One Alkyl Chain." Polymers 13, no. 3 (2021): 460. http://dx.doi.org/10.3390/polym13030460.

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Associating behavior of star-like amphiphilic polymers consisting of two or three poly(ethylene oxide) (PEO) chains and one stearyl chain (C18) was investigated. Although the aggregation number (Nagg) of linear analogue of amphiphilic polymers monotonically decreased with increasing number-average molecular weight of PEO (Mn,PEO), the Nagg of micelles of star-like amphiphilic polymers with Mn,PEO = 550 g/mol was smaller than that with Mn,PEO = 750 g/mol, whereas that with Mn,PEO ≥ 750 g/mol showed general Mn,PEO dependence. Small-angle X-ray scattering analyses revealed that the occupied area
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Tandon, Poonam, Naresh Kumar, Vineet Gupta, Deepika Chaturvedi, Soni Mishra, and Vishwambhar D. Gupta. "Conformational symmetry and vibrational dynamics of polymers." Pure and Applied Chemistry 81, no. 3 (2009): 549–69. http://dx.doi.org/10.1351/pac-con-08-08-24.

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Polymers are an important class of materials, and their conformation dictates their dynamical, thermodynamical, and hydrodynamical behavior. Several spectroscopic and other techniques have been employed to characterize their conformation. However, little use has been made of group-theoretical techniques except in the classification of symmetry species. In the present review, an attempt has been made to correlate normal modes and their dispersion profiles with the conformation of the polymeric systems. This has been attempted in the case of 2-, 3-, 4-fold and α-helical polymers.
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Yasuda, Shugo. "Synchronized Molecular-Dynamics Simulation of the Thermal Lubrication of an Entangled Polymeric Liquid." Polymers 11, no. 1 (2019): 131. http://dx.doi.org/10.3390/polym11010131.

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The thermal lubrication of an entangled polymeric liquid in wall-driven shear flows between parallel plates is investigated by using a multiscale hybrid method, coupling molecular dynamics and hydrodynamics (i.e., the synchronized molecular dynamics method). The temperature of the polymeric liquid rapidly increases due to viscous heating once the drive force exceeds a certain threshold value, and the rheological properties drastically change at around the critical drive force. In the weak viscous-heating regime, the conformation of polymer chains is dominated by the flow field so that the poly
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ADAM, M., and D. LAIREZ. "FRACTAL CONFORMATION OF POLYMERS." Fractals 01, no. 02 (1993): 149–69. http://dx.doi.org/10.1142/s0218348x93000174.

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In this review, our purpose is to apply fractal concept to the description of the conformation of linear polymers, star polymers and branched polymers, in dilute and semi-dilute solutions in good solvent. Experimental evidence to theoretical predictions will be presented.
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Kim, Jinsang. "Assemblies of conjugated polymers: Intermolecular and intramolecular effects on the photophysical properties of conjugated polymers." Pure and Applied Chemistry 74, no. 11 (2002): 2031–44. http://dx.doi.org/10.1351/pac200274112031.

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Conjugated polymers are emerging materials for electronic applications due to the tunability of their properties through variation of their chemical structure. Their applications, which currently include light-emitting diodes (LEDs), field effect transistors (FETs), plastic lasers, batteries, and sensors, are expanding to many new areas. The two critical parameters that determine the function of conjugated polymer-based devices are chemical structure and nanostructure of a conjugated polymer in the solid state. While the physical properties of isolated polymers are primarily controlled by thei
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Dissertations / Theses on the topic "Conformation of polymers"

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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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Ma, Tianji. "Functionnalization of single nanopore by polymers : conformation, transport and applications." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS072.

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Les canaux biologiques sont des protéines situées sur la membrane cellulaire. Ils permettent de maintenir l'équilibre des électrolytes et le transport des molécules. Ces canaux protéiques peuvent répondre à de multiples stimuli tels que la lumière, le pH, la force ionique et le potentiel transmembranaire afin de réguler leur perméabilité et leur sélectivité. Pour imiter ces pores biologiques, des nanopores artificiels ont été fabriqués des matériaux inorganiques ou polymères. Leurs avantages sont la simplicité de fabrication et leur stabilité mécanique et chimique. Cependant, ils sont générale
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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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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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Gagliardi, Simona. "Conformation and dynamics in cyclic and linear polymers by neutron scattering techniques." Thesis, Heriot-Watt University, 2002. http://hdl.handle.net/10399/378.

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Bouffard, Jean Ph D. Massachusetts Institute of Technology. "Molecular design of conjugated polymers for the control of conformation, electronics and self-assembly." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/42915.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2008.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Vita.<br>Includes bibliographical references.<br>The design, synthesis and characterization of organic electronic materials, in particular luminescent conjugated polymers, with structural motifs that allow for the controlled modulation of their photophysical properties are presented. In Chapter 1, the synthesis of new heterocyclic oligo(phenylene) analogues based
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Cates, Ryan S. "Influence of Crosslink Density on Swelling and Conformation of Surface-Constrained Poly(N-Isopropylacrylamide) Hydrogels." Scholar Commons, 2010. https://scholarcommons.usf.edu/etd/1592.

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A stimuli-responsive microgel is a three-dimensional polymer network that is able to absorb and expel a solvent (commonly water). These materials are unique in the fact that their sponge-like behavior can be actuated by environmental cues, like temperature, ion concentration, pH, and light. Because of the dynamic properties of these materials they have found applications in drug-delivery systems, micro-assays, selective filtration, artificial muscle, and non-fouling surfaces. The most well-known stimuli-responsive polymer is Poly(N-isopropylacrylamide) or PNIPAAm and it experiences a switchabl
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Krause, Stefan, Pedro F. Aramendia, Daniela Täuber, and Borczyskowski Christian von. "Freezing single molecule dynamics on interfaces and in polymers." Universitätsbibliothek Chemnitz, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-122254.

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Heterogeneous line broadening and spectral diffusion of the fluorescence emission spectra of perylene diimide molecules have been investigated by means of time dependent single molecule spectroscopy. The influence of temperature and environment has been studied and reveals strong correlation to spectral diffusion processes. We followed the freezing of the molecular mobility of quasi free molecules on the surface upon temperature lowering and by embedding into a poly(methyl methacrylate) (PMMA) polymer. Thereby changes of optical transition energies as a result of both intramolecular changes of
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Bernard, Ayanna Malene. "Molecular modeling of poly(2-ethyl-2-oxazoline)." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24793.

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Thesis (Ph.D.)--Chemical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Peter Ludovice; Committee Member: Amyn Teja; Committee Member: Arthur Ragauskas; Committee Member: William Koros; Committee Member: Yulin Deng.
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Krause, Stefan, Pedro F. Aramendia, Daniela Täuber, and Borczyskowski Christian von. "Freezing single molecule dynamics on interfaces and in polymers." Physical Chemistry Chemical Physics. - 2011,13, S. 1754-1761, 2011. https://monarch.qucosa.de/id/qucosa%3A19944.

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Heterogeneous line broadening and spectral diffusion of the fluorescence emission spectra of perylene diimide molecules have been investigated by means of time dependent single molecule spectroscopy. The influence of temperature and environment has been studied and reveals strong correlation to spectral diffusion processes. We followed the freezing of the molecular mobility of quasi free molecules on the surface upon temperature lowering and by embedding into a poly(methyl methacrylate) (PMMA) polymer. Thereby changes of optical transition energies as a result of both intramolecular changes of
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Books on the topic "Conformation of polymers"

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Polymers near surfaces: Conformation properties and relation to critical phenomena. World Scientific, 1993.

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A, Winnik Mitchell, and North Atlantic Treaty Organization. Scientific Affairs Division., eds. Photophysical and photochemical tools in polymer science: Conformation, dynamics, morphology. D. Reidel Pub. Co., 1986.

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Toyota Conference (1st 1987 Inuyama-shi, Japan). Molecular conformation and dynamics of macromolecules in condensed systems: A collection of contributions based on lectures presented at the 1st Toyota Conference, Inuyama City, Japan, 28 September-1 October 1987. Elsevier, 1988.

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Whiskens, Mark Anthony. Polymer microstructure and modelling of polymer conformations. typescript, 1991.

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Tonelli, Alan E. NMR spectroscopy and polymer microstructure: The conformational connection. VCH, 1989.

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Structural investigation of polymers. Ellis Horwood, 1991.

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Bodor, G. Structural investigation of polymers. Ellis Horwood, 1990.

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Skazka, V. S. Sedimentat͡s︡ionno-diffuzionnyĭ analiz polimerov v rastvore: Problemy konformat͡s︡ionnogo analiza makromolekul. Izd-vo Leningradskogo universiteta, 1985.

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Torres, F. G. Polymer and polymer composite flows: Modelling of molecular chain conformations and reinforcing fibre orientations. UMIST, 1997.

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Mattice, Wayne L. Conformational theory of large molecules: The rotationalisomeric state model in macromolecular systems. Wiley, 1994.

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Book chapters on the topic "Conformation of polymers"

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Gooch, Jan W. "Conformation." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_2826.

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Lesne, Annick, and Michel Laguës. "Spatial Conformation of Polymers." In Scale Invariance. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-15123-1_6.

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Friedman, Avner. "Conformation of random polymers." In Mathematics in Industrial Problems. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-9098-5_14.

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Lasic, Danilo D. "The Conformation of Polymers at Interfaces." In ACS Symposium Series. American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0680.ch003.

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Okamoto, Yoshio, Tamaki Nakano, and Shigeki Habaue. "Helical Polymers: Synthesis, Conformation, and Function." In New Macromolecular Architecture and Functions. Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80289-8_10.

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Khokhlov, Alexei R., Victor A. Ivanov, Alexander V. Chertovich, Alexei A. Lazutin, and Pavel G. Khalatur. "Conformation-Dependent Sequence Design of Copolymers." In Structure and Dynamics of Confined Polymers. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0401-5_21.

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Aime, P. P. "Conformation of Conjugated Polymers in Good Solvent." In Conjugated Polymeric Materials: Opportunities in Electronics, Optoelectronics, and Molecular Electronics. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2041-5_10.

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Turska, E. "RELATIONS BETWEEN THE CONFORMATION OF MACROMOLECULES AND THEIR STRUCTURAL CHARACTERISTICS." In Morphology of Polymers, edited by Blahoslav Sedláček. De Gruyter, 1986. http://dx.doi.org/10.1515/9783110858150-009.

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Howarth, O. W. "Liquid state NMR studies of polymer dynamics and conformation." In NMR Spectroscopy of Polymers. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2150-7_4.

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Noirez, L., J. P. Cotton, P. Keller, et al. "Conformation of a Polymer in Liquid Crystal Polymer." In New Trends in Physics and Physucal Chemistry of Polymers. Springer US, 1989. http://dx.doi.org/10.1007/978-1-4613-0543-9_43.

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Conference papers on the topic "Conformation of polymers"

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JOANNY, JEAN-FRANÇOIS. "CONFORMATION OF CHARGED POLYMERS: POLYELECTROLYTES AND POLYAMPHOLYTES." In Folding and Self-Assembly of Biological Macromolecules Conference. WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812703057_0002.

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Zangrilli, Ursula T., and Lisa M. Weiland. "Multiscale Modeling of Nafion Mechanical Properties." In ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2009. http://dx.doi.org/10.1115/smasis2009-1331.

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Multiscale modeling is used to investigate the mechanical characteristics of ionic polymers with the intent of ultimately expanding understanding of the interplay between multiscale stiffness and electromechanical response. Strategies for manipulating electromechanical transduction of ionic polymers include, but are not limited to: variation of hydration and/or the equivalent weight. In general, variations resulting in increased electroactive response also result in decreased mechanical stiffness and can decrease to the point of limiting mechanical integrity. This effort begins with the suppos
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Ito, K., M. Shimomura, Y. Kimura, and R. Hayakawa. "Intrachain conduction and main-chain conformation of conducting polymers as studied by frequency-domain electric birefringence spectroscopy." In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.834774.

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Plank, J., T. Hurnaus, C. Tiemeyer, and T. Echt. "Temperature-Induced Changes in the Solved Conformation of Cement Fluid Loss Polymers and the Consequences for Their Performance." In SPE International Symposium on Oilfield Chemistry. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/173796-ms.

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Duan, Shanzhong, and Andrew Ries. "An Efficient O(N) Algorithm for Computer Simulation of Rigid Body Molecular Dynamics." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42032.

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Molecular dynamics is effective for a nano-scale phenomenon analysis. There are two major computational costs associated with computer simulation of atomistic molecular dynamics. They are calculation of the interaction forces and formation/solution of equations of motion. In this paper, an O(N) (order N) procedure is presented for calculation of the interaction forces and formation/solution of equations of motion. For computational costs associated with potentials or interaction forces, an internal coordinate method is used. Use of the internal coordinate method makes application of multi-rigi
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Venugopal, Vinithra, Hao Zhang, and Vishnu-Baba Sundaresan. "A Chemo-Mechanical Constitutive Model for Conducting Polymers." In ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/smasis2013-3218.

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Conducting polymers undergo volumetric expansion through redox-mediated ion exchange with its electrolytic environment. The ion transport processes resulting from an applied electrical field controls the conformational relaxation in conducting polymer and regulates the generated stress and strain. In the last two decades, significant contributions from various groups have resulted in methods to fabricate, model and characterize the mechanical response of conducting polymer actuators in bending mode. An alternating electrical field applied to the polymer electrolyte interface produces the mecha
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Yee, Shannon K., Nelson Coates, Jeffrey J. Urban, Arun Majumdar, and Rachel A. Segalman. "A High-Performance Solution-Processable Hybrid Thermoelectric Material." In ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/mnhmt2012-75002.

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Thermoelectrics have the potential to become an alternative power source for distributed electrical generation as they could provide co-generation anywhere thermal gradients exist. More recent material and manufacturing advances have further suggested that thermoelectrics could independently generate primary power [1]. However, due to cost, manufacturability, abundance, and material performance, the full potential of thermoelectrics has yet to be realized. In the last decade, thermoelectric material improvements have largely been realized by diminishing thermal conductivities via nanostructuri
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Jones, Ronald L., Christopher L. Soles, Francis W. Starr, et al. "Chain conformation in ultrathin polymer films." In SPIE's 27th Annual International Symposium on Microlithography, edited by Theodore H. Fedynyshyn. SPIE, 2002. http://dx.doi.org/10.1117/12.474232.

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Leighton, Richard, David T. Walker, Todd Stephens, and Gordon Garwood. "Reynolds Stress Modeling for Drag Reducing Viscoelastic Flows." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45655.

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A Reynolds-stress transport equation model for turbulent drag-reducing viscoelastic flows, such as that which occurs for dilute polymer solutions, is presented. The approach relies on an extended set of Reynolds-Averaged Navier-Stokes equations which incorporate additional polymer stresses. The polymer stresses are specified in terms of the mean polymer conformation tensor using the FENE-P dumbbell model. The mean conformation tensor equation is solved in a coupled manner along with the Navier-Stokes equations. The presence of the polymer stresses in the equations of motion results in addition
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Teixeira, Rodrigo E., and Richard S. Graham. "Rational Design of Novel Materials From Polymer Microrheology." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25068.

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The visco-elastic properties of entangled polymer liquids arise from molecular-scale topological interactions and stochastic fluctuations under flow. Here, the evolutions of individual entangled polymers were observed in rheologically relevant shear flow histories. We uncover a high degree of molecular individualism and broad conformational distributions resulting from incessant stretch-collapse cycles. The data and insights of the present study may lead to improved molecular-level models and constitutive equations. These tools, in turn, may enable the rational design of novel materials with p
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Reports on the topic "Conformation of polymers"

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Hong, Sung Y., and Dennis S. Marynick. Understanding the Conformational Stability and Electronic Structures of Modified Polymers Based on Polythiophene. Defense Technical Information Center, 1990. http://dx.doi.org/10.21236/ada253753.

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Escobedo, Fernando A. CONFORMATIONAL PROPERTIES AND ENTROPIC PARTITIONING OF TOPOLOGICALLY COMPLEX POLYMERS UNDER CONFINEMENT - Final Report. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/837989.

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Pople, John A. Constitutional Isomers of Dendrimer-like Star Polymers: Design, Synthesis and Conformational and Structural Properties. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/784884.

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Pople, John A. Conformational and Structural Properties of High Functionality Dendrimer-like Star Polymers Synthesized from Living Polymerization Techniques. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/784885.

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