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Relevant bibliographies by topics / Polymer chain conformation

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Academic literature on the topic 'Polymer chain conformation'

Author: Grafiati

Published: 8 February 2025

Last updated: 19 July 2025

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Journal articles on the topic "Polymer chain conformation"

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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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Qin, Linlin, Linling Li, Ye Sha, et al. "Conformational Transitions of Polymer Chains in Solutions Characterized by Fluorescence Resonance Energy Transfer." Polymers 10, no. 9 (2018): 1007. http://dx.doi.org/10.3390/polym10091007.

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The critical overlap concentration C* is an important concept in polymer solutions and is defined as the boundary between dilute and semidilute regimes. In this study, the chain conformational changes of polystyrene (PS) with both high (Mn = 200,000 Da) and low (Mn = 13,000 Da) molecular weights in cis-decalin were compared by intrachain fluorescence resonance energy transfer (FRET). The random labeling of donor and acceptor chromophores strategy was employed for long PS chains, whereas chain-end labeling was used for short PS chains. By monitoring the spectroscopic intensity ratio between acc

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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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Guo, Yingying, and Linqing Bai. "Dissipative Particle Dynamics Simulation for the Self-Assembly of Symmetric Pentablock Terpolymers Melts under 1D Confinements." Polymers 15, no. 19 (2023): 3982. http://dx.doi.org/10.3390/polym15193982.

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The phase behavior of CBABC pentablock terpolymers confined in thin films is investigated using the Dissipative Particle Dynamic method. Phase diagrams are constructed and used to reveal how chain length (i-block length), block composition and wall selectivity influence the self-assembly structures. Under neutral walls, four categories of morphologies, i.e., perpendicular lamellae, core–shell types of microstructures, complex networks, and half-domain morphologies, are identified with the change in i-block length. Ordered structures are more common at weak polymer–polymer interaction strengths

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Hu, Zhongjian, Ryan T. Haws, Zhuping Fei, et al. "Impact of backbone fluorination on nanoscale morphology and excitonic coupling in polythiophenes." Proceedings of the National Academy of Sciences 114, no. 20 (2017): 5113–18. http://dx.doi.org/10.1073/pnas.1620722114.

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Fluorination represents an important strategy in developing high-performance conjugated polymers for photovoltaic applications. Here, we use regioregular poly(3-ethylhexylthiophene) (P3EHT) and poly(3-ethylhexyl-4-fluorothiophene) (F-P3EHT) as simplified model materials, using single-molecule/aggregate spectroscopy and molecular dynamic simulations, to elucidate the impacts of backbone fluorination on morphology and excitonic coupling on the molecular scale. Despite its high regioregularity, regioregular P3EHT exhibits a rather broad distribution in polymer chain conformation due to the strong

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Sikorski, Andrzej. "Diffusion of Confined Polymer Chains." Defect and Diffusion Forum 237-240 (April 2005): 169–74. http://dx.doi.org/10.4028/www.scientific.net/ddf.237-240.169.

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Simple lattice model of polymer systems was developed and studied using the Monte Carlo method. The model chains were star-branched with f = 3 arms and rings. The number of polymer segments in a chain was varied up to 800. The chains were built on a simple cubic lattice with the excluded volume interactions only (the athermal system). The polymers were confined between two parallel impenetrable walls with a set of irregular obstacles what can be treated as porous media. A Metropolis-like sampling algorithm employing local changes of chain conformation was used. The dynamic properties of the mo

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Kobayashi, Masamichi, and Takehito Kozasa. "Conformational Ordering Process on Physical Gelation of Syndiotactic Polystyrene/Solvent Systems Revealed by Time-Resolved Infrared Spectroscopy." Applied Spectroscopy 47, no. 9 (1993): 1417–24. http://dx.doi.org/10.1366/0003702934067450.

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Syndiotactic polystyrene (SPS) dissolved in various organic solvents forms stable gels. Infrared spectroscopic research shows that SPS molecules assume highly ordered TTGG conformation in gels, giving rise to many infrared bands characteristic of the regular TTGG sequences. The behavior of the conformational ordering is strongly dependent on the solvent and the temperature. The time evolution of the conformational order on gelation has been investigated for SPS/CHCl3 systems at various polymer concentrations and temperatures by time-resolved infrared spectroscopy. By the analysis of the rate o

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Bollas, S., k. Chrissopoulou, K.S. Andrikopoulos, G.A. Voyiatzis, and S.H. Anastasiadis. "Polymer Conformation under Confinement." Polymers 9, no. 2 (SI) (2017): art. no. 73. https://doi.org/10.3390/polym9020073.

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The conformation of polymer chains under confinement is investigated in intercalated polymer/layered silicate nanocomposites. Hydrophilic poly(ethylene oxide)/sodium montmorillonite, PEO/Na+ -MMT, hybrids were prepared utilizing melt intercalation with compositions where the polymer chains are mostly within the ~1 nm galleries of the inorganic material. The polymer chains are completely amorphous in all compositions even at temperatures where the bulk polymer is highly crystalline. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) is utilized to investigate the co

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Cotton, J. P. "Conformation of a polymer chain in liquid crystalline polymers." Neutron News 1, no. 3 (1990): 22–23. http://dx.doi.org/10.1080/10448639008202040.

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Tanaka, Fumihiko, and Hideharu Ushiki. "Chain conformation in ternary polymer solutions." Macromolecules 21, no. 4 (1988): 1041–46. http://dx.doi.org/10.1021/ma00182a033.

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Dissertations / Theses on the topic "Polymer chain conformation"

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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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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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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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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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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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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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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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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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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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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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Books on the topic "Polymer chain conformation"

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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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Book chapters on the topic "Polymer chain conformation"

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Gafurov, Ulmas. "Conformation Regroupings in Deformation Process at Various Temperatures of the Oriented Flexible-Chain Linear Crystalline Polymer." In Functional Materials. Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527607420.ch61.

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Gedde, Ulf W. "Chain Conformations in Polymers." In Polymer Physics. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-0543-9_2.

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Strobl, Gert R. "Single Chain Conformations." In The Physics of Polymers. Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-662-03243-5_2.

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Strobl, Gert R. "Single Chain Conformations." In The Physics of Polymers. Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-662-03488-0_2.

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Tonelli, Alan, and Jialong Shen. "Determining the Microstructural Dependent Conformational Preferences of Polymer Chains." In Conformations. CRC Press, 2020. http://dx.doi.org/10.1201/b22496-3.

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Tonelli, Alan, and Jialong Shen. "Connecting the Behaviors/Properties of Polymer Solids to the Microstructural Dependent Conformational Preferences of Their Individual Polymer Chains." In Conformations. CRC Press, 2020. http://dx.doi.org/10.1201/b22496-6.

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Hu, Wenbing. "Scaling Analysis of Real-Chain Conformations." In Polymer Physics. Springer Vienna, 2012. http://dx.doi.org/10.1007/978-3-7091-0670-9_4.

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Tonelli, Alan, and Jialong Shen. "Connecting the Behaviors/Properties of Polymer Solutions and Liquids to the Microstructural Dependent Conformational Preferences of Their Polymer Chains." In Conformations. CRC Press, 2020. http://dx.doi.org/10.1201/b22496-5.

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Liu, Guangming, and Guangzhao Zhang. "Conformational Change of Grafted Polymer Chains." In SpringerBriefs in Molecular Science. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-39790-5_2.

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De Rosa, Claudio. "Chain Conformation, Crystal Structures, and Structural Disorder in Stereoregular Polymers." In Materials-Chirality. John Wiley & Sons, Inc., 2004. http://dx.doi.org/10.1002/0471471895.ch2.

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Conference papers on the topic "Polymer chain conformation"

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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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chen, yunzhi, Tianyi Guan, Yujing Wang, and Tianyi Zong. "Conformation simulation of polymer chain with SAW module." In International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021), edited by Ke Chen, Nan Lin, Romeo Meštrović, Teresa A. Oliveira, Fengjie Cen, and Hong-Ming Yin. SPIE, 2022. http://dx.doi.org/10.1117/12.2628094.

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Lee, Jeong Yong, Bo Kyung Ryu, Joo Sung Lee, et al. "Dynamics and Conformation of Single Polymer Chain in a Slot Coating Flow." In THE XV INTERNATIONAL CONGRESS ON RHEOLOGY: The Society of Rheology 80th Annual Meeting. AIP, 2008. http://dx.doi.org/10.1063/1.2964654.

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Prasad, Paras N., and Jacek Swiatkiewicz. "Organic crystals and polymers as nonlinear optical materials." In OSA Annual Meeting. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.tum1.

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Organic molecular and polymeric systems have emerged as an important class of nonlinear optical materials for various uses. The advantage of a molecular material is the tremendous flexibility it offers to modify its chemical structure and conformation and consequently to tune its nonlinear optical properties. In addition the molecular, specially polymeric materials are also easily conformable to guided wave device structures. In our research, both second-and third-order nonlinearities have been investigated. Efficient second harmonic generation has been observed in several new classes of molec

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Weiland, Lisa Mauck, Emily K. Lada, Ralph C. Smith, and Donald J. Leo. "Application of Monte Carlo Simulations to Hydrated Nafion Stiffness Predictions." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80396.

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Application of Rotational Isomeric State (RIS) theory to the prediction of Young’s modulus of a solvated ionomer is considered. RIS theory directly addresses polymer chain conformation as it relates to mechanical response trends. Successful adaptation of this methodology to the prediction of elastic moduli would thus provide a powerful tool for guiding ionomer fabrication. The Mark-Curro Monte Carlo methodology is applied to generate a statistically valid number of end-to-end chain lengths via RIS theory for a solvated Nafion case. The distribution of chain lengths is then fitted to a Probabil

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Xu, Hui, Zhiqing Su, Jun Jin, and Yingcheng Li. "Theoretical Study of Polymeric Surfactant with Multiple Types of Branched Ethylene/Propylene Oxide (EO/PO) Structure by DPD Simulation." In SPE Conference at Oman Petroleum & Energy Show. SPE, 2025. https://doi.org/10.2118/225153-ms.

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Abstract As a single chemical agent, polymeric surfactants (PolyS) play a dual role in increasing viscosity and reducing interfacial tension, which could effectively solve the problem of chromatographic separation of polymer-surfactant multi-component systems and improve oil displacement efficiency. Different molecular chain structures of PolyS with the same atomic composition, as well as different atomic compositions of active units in PolyS chains, will affect the performance of PolyS seriously. Due to the wide variety of theoretically feasible PolyS structures and unclear structure-property

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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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Shiba, E., J. N. Lindon, L. Kushner, B. Kudryk, and E. W. Salzman. "DETECTION BY MONOCLONAL ANTIBODIES OF CONFORMATIONAL CHANGE IN FIBRINOGEN ADSORBED ON ARTIFICIAL SURFACES." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1642921.

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Adsorption of fibrinogen (Fg) appears to be an important precusor of platelet reactivity with artificial surfaces. We have reported that, contrary to the prevailing view, platelet reactivity is less well correlated with the total concentration of adsorbed Fg on the surface than with the concentration of adsorbed Fg detectable by labelled anti-Fg polyclonal antibodies ("native" Fg), and therefore presumably recognizable by the platelet's Fg receptors. To clarify the nature of the conformational change in Fg implied by these findings, we measured Fg adsorbed on a series of polyalkyl methacrylate

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Nishioka, Toshikatsu. "Two-dimensional infrared correlation spectroscopy studies of polymer blends 1: Chain conformation and bonding in atactic polystyrene-poly(2,6-dimethyl-1,4-phenylene ether) blends." In International symposium on two-dimensional correlation spectroscopy. AIP, 2000. http://dx.doi.org/10.1063/1.1302871.

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Henschen, A., та E. Müller. "ON THE FACTOR XIIIa-INDUCED CROSSLINKING OF HUMAN FIBRIN α-CHAINS". У XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644649.

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Factor XIIIa catalysis the formation of isopeptide bonds Between γ-carbamoyl groups of peptide-bound glutamines and ε-amino groups of lysines or lysine analogues. During fibrin crosslinking two such bonds are rapidly formed between the C-termini of two γ-chains in adjacent molecules and then several bonds are more slowly formed between several α-chains. The crosslinking sites in the γ-chain were identified already 15 years ago, those in the α-chain are still only tentatively or partially identified,, However, by determining the incorporation of lysine analogues in the α-chain it could be shown

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