1
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Brás AR, Arizaga A, Sokolova D, Agirre U, Viciosa MT, Radulescu A, Prévost SF, Kruteva M, Pyckhout-Hintzen W, Schmidt AM. Influence of Polymer Polarity and Association Strength on the Properties of Poly(alkyl ether)-Based Supramolecular Melts. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Ana Rita Brás
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
| | - Ana Arizaga
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
| | - Daria Sokolova
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
- Chemistry Department, University of Basel, BPR 1096/4058Basel, Schweiz
| | - Uxue Agirre
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
| | - Maria Teresa Viciosa
- IN − Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001Lisbon, Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Aurel Radulescu
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
| | | | - Margarita Kruteva
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
| | - Wim Pyckhout-Hintzen
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
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2
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Lang M, Kumar KS. Reversible Stepwise Condensation Polymerization with Cyclization: Strictly Alternating Co-polymerization and Homopolymerization Based upon Two Orthogonal Reactions. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael Lang
- Institut Theorie der Polymere, Leibniz Institut für Polymerforschung Dresden, HoheStraße 6, Dresden 01069, Germany
| | - Kiran Suresh Kumar
- Institut Theorie der Polymere, Leibniz Institut für Polymerforschung Dresden, HoheStraße 6, Dresden 01069, Germany
- Institut für Theoretische Physik, Technische Universität Dresden, Zellescher Weg 17, Dresden 01069, Germany
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3
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Brás A, Arizaga A, Agirre U, Dorau M, Houston J, Radulescu A, Kruteva M, Pyckhout-Hintzen W, Schmidt AM. Chain-End Effects on Supramolecular Poly(ethylene glycol) Polymers. Polymers (Basel) 2021; 13:2235. [PMID: 34300992 PMCID: PMC8309292 DOI: 10.3390/polym13142235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 06/30/2021] [Accepted: 06/30/2021] [Indexed: 11/25/2022] Open
Abstract
In this work we present a fundamental analysis based on small-angle scattering, linear rheology and differential scanning calorimetry (DSC) experiments of the role of different hydrogen bonding (H-bonding) types on the structure and dynamics of chain-end modified poly(ethylene glycol) (PEG) in bulk. As such bifunctional PEG with a molar mass below the entanglement mass Me is symmetrically end-functionalized with three different hydrogen bonding (H-bonding) groups: thymine-1-acetic acid (thy), diamino-triazine (dat) and 2-ureido-4[1H]-pyrimidinone (upy). A linear block copolymer structure and a Newtonian-like dynamics is observed for PEG-thy/dat while results for PEG-upy structure and dynamics reveal a sphere and a network-like behavior, respectively. These observations are concomitant with an increase of the Flory-Huggins interaction parameter from PEG-thy/dat to PEG-upy that is used to quantify the difference between the H-bonding types. The upy association into spherical clusters is established by the Percus-Yevick approximation that models the inter-particle structure factor for PEG-upy. Moreover, the viscosity study reveals for PEG-upy a shear thickening behavior interpreted in terms of the free path model and related to the time for PEG-upy to dissociate from the upy clusters, seen as virtual crosslinks of the formed network. Moreover, a second relaxation time of different nature is also obtained from the complex shear modulus measurements of PEG-upy by the inverse of the angular frequency where G' and G'' crosses from the network-like to glass-like transition relaxation time, which is related to the segmental friction of PEG-upy polymeric network strands. In fact, not only do PEG-thy/dat and PEG-upy have different viscoelastic properties, but the relaxation times found for PEG-upy are much slower than the ones for PEG-thy/dat. However, the activation energy related to the association dynamics is very similar for both PEG-thy/dat and PEG-upy. Concerning the segmental dynamics, the glass transition temperature obtained from both rheological and calorimetric analysis is similar and increases for PEG-upy while for PEG-thy/dat is almost independent of association behavior. Our results show how supramolecular PEG properties vary by modifying the H-bonding association type and changing the molecular Flory-Huggins interaction parameter, which can be further explored for possible applications.
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Affiliation(s)
- Ana Brás
- Institute of Physical Chemistry, University of Cologne, 50939 Cologne, Germany; (A.A.); (U.A.); (M.D.); (A.M.S.)
| | - Ana Arizaga
- Institute of Physical Chemistry, University of Cologne, 50939 Cologne, Germany; (A.A.); (U.A.); (M.D.); (A.M.S.)
| | - Uxue Agirre
- Institute of Physical Chemistry, University of Cologne, 50939 Cologne, Germany; (A.A.); (U.A.); (M.D.); (A.M.S.)
| | - Marie Dorau
- Institute of Physical Chemistry, University of Cologne, 50939 Cologne, Germany; (A.A.); (U.A.); (M.D.); (A.M.S.)
| | - Judith Houston
- Jülich Centre for Neutron Science (JCNS-1) at Heinz Maier Leibnitz-Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85748 Garching, Germany; (J.H.); (A.R.)
| | - Aurel Radulescu
- Jülich Centre for Neutron Science (JCNS-1) at Heinz Maier Leibnitz-Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85748 Garching, Germany; (J.H.); (A.R.)
| | - Margarita Kruteva
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany; (M.K.); (W.P.-H.)
| | - Wim Pyckhout-Hintzen
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany; (M.K.); (W.P.-H.)
| | - Annette M. Schmidt
- Institute of Physical Chemistry, University of Cologne, 50939 Cologne, Germany; (A.A.); (U.A.); (M.D.); (A.M.S.)
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4
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Li X, Xu W, Chang X, Zheng Y, Ni L, Shan G, Bao Y, Pan P. Stepwise Crystallization and Induced Microphase Separation in Nucleobase-Monofunctionalized Supramolecular Poly(ε-caprolactone). Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02160] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xing Li
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Wenqing Xu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Xiaohua Chang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Ying Zheng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Lingling Ni
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
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5
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Li X, Ni L, Sun C, Xu W, Zheng Y, Shan G, Bao Y, Pan P. Nucleobase-monofunctionalized supramolecular poly( l-lactide): controlled synthesis, competitive crystallization, and structural organization. Polym Chem 2021. [DOI: 10.1039/d1py00288k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Controlled synthesis, competitive crystallization, and crystallization-driven structural organization of thymine-monofunctionalized supramolecular poly(l-lactide).
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Affiliation(s)
- Xing Li
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Lingling Ni
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Chenxuan Sun
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Wenqing Xu
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Ying Zheng
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
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6
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Bhaumik S, Ntetsikas K, Hadjichristidis N. Noncovalent Supramolecular Diblock Copolymers: Synthesis and Microphase Separation. Macromolecules 2020; 53:6682-6689. [PMID: 32904834 PMCID: PMC7460553 DOI: 10.1021/acs.macromol.9b02326] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 05/25/2020] [Indexed: 12/20/2022]
Abstract
Supramolecular block copolymers (PS-DAT-sb-PI-Thy) were synthesized via noncovalent hydrogen bonding between well-defined thymine end-functionalized polyisoprene (PI-Thy) and diaminotriazine (DAT) end-functionalized polystyrene (PS-DAT). Three covalently linked block copolymers were also synthesized for comparison with the noncovalent supramolecular block copolymers. The complementary DAT/Thy interaction resulted in the microphase separation of the supramolecular block copolymer system. Detailed characterization of all functionalized homopolymers and block copolymers was carried out via proton nuclear magnetic resonance (1H NMR) spectroscopy, gel permeation chromatography, matrix-assisted laser desorption/ionization-time of flight mass spectrometry, and differential scanning calorimetry. The self-assembly process of supramolecular block copolymers was evidenced by transmission electron microscopy. Small-angle X-ray scattering was also performed to study the microphase separation of supramolecular and covalently linked block copolymers. Comparison of microphase separation images of supramolecular block copolymers and the corresponding covalently linked analogues reveals differences in d-spacing and microdomain shape.
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Affiliation(s)
- Saibal Bhaumik
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Konstantinos Ntetsikas
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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7
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Supramolecular Dimerization in a Polymer Melt from Small-Angle X-ray Scattering and Rheology: A Miscible Model System. Polymers (Basel) 2020; 12:polym12040880. [PMID: 32290322 PMCID: PMC7240474 DOI: 10.3390/polym12040880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/02/2020] [Accepted: 04/08/2020] [Indexed: 01/12/2023] Open
Abstract
We present a structural and dynamic study on the simplest supramolecular hetero-association, recently investigated by the authors to prepare architectural homogeneous structures in the melt state, based on the bio-inspired hydrogen-bonding of thymine/diaminotriazine (thy–DAT) base-pairs. In the combination with an amorphous low Tg poly(butylene oxide) (PBO), no micellar structures are formed, which is expected for nonpolar polymers because of noncompatibility with the highly polar supramolecular groups. Instead, a clear polymer-like transient architecture is retrieved. This makes the heterocomplementary thy–DAT association an ideal candidate for further exploitation of the hydrogen-bonding ability in the bulk for self-healing purposes, damage management in rubbers or even the development of easily processable branched polymers with built-in plasticizer. In the present work, we investigate the temperature range from Tg + 20 °C to Tg + 150 °C of an oligomeric PBO using small-angle X-ray scattering (SAXS) and linear rheology on the pure thy and pure DAT monofunctionals and on an equimolar mixture of thy/DAT oligomers. The linear rheology performed at low temperature is found to correspond to fully closed-state dimeric configurations. At intermediate temperatures, SAXS probes the equilibrium between open and closed states of the thy–DAT mixtures. The temperature-dependent association constant in the full range between open and closed H-bonds and an enhancement of the monomeric friction coefficient due to the groups is obtained. The thy–DAT association in the melt is more stable than the DAT–DAT, whereas the thy–thy association seems to involve additional long-lived interactions.
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8
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Lee E, Paul W. Additional Entanglement Effect Imposed by Small Sized Ring Aggregates in Supramolecular Polymer Melts: Molecular Dynamics Simulation Study. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eunsang Lee
- Institut für Physik, Martin-Luther Universität Halle-Wittenberg, Halle 06120, Germany
| | - Wolfgang Paul
- Institut für Physik, Martin-Luther Universität Halle-Wittenberg, Halle 06120, Germany
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9
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Lee E, Paul W. Morphology and thermodynamics of polymers with monofunctional hydrogen bonding ends in dilute and semidilute concentration. Phys Rev E 2019; 100:012502. [PMID: 31499799 DOI: 10.1103/physreve.100.012502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Indexed: 11/07/2022]
Abstract
Rheological properties of supramolecular polymers (SMPs) depend on their equilibrium structure including the size, the number, and the topology of aggregates. A polymer with a hydrogen bonding (H-bonding) motif at both ends is one widely used precursor to build SMPs. Due to the complex interplay between chain stiffness, H-bonding interaction, polarity along a chain, and polymer conformational entropy, it is difficult to theoretically predict the structure of SMPs. In this work we investigate thermodynamics of SMPs with H-bonding ends in a wide range of densities. A replica exchange stochastic approximation Monte Carlo method with coarse-grained models for polyethylene and polybuthylene glycols is used. Our simulation shows that SMPs have two morphological transition lines with increasing temperature, a ring-linear transition, and a linear-free chain transition. The latter is a thermodynamic transition and turns out to be continuous. Comparing the two different spacers, we find that ring-linear transition temperatures differ from each other at the constant volume fraction due to different looping probabilities, which can be calculated from the average polymer size by mean field. However, the linear-free chain transition temperatures are similar because the entropic penalty to form a hydrogen bond mainly depends on the probability of finding H-bonding groups in a system, which is the same for both systems at a given volume fraction.
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Affiliation(s)
- Eunsang Lee
- Institute for Physics, Martin-Luther University Halle-Wittenberg, Halle 06120, Germany
| | - Wolfgang Paul
- Institute for Physics, Martin-Luther University Halle-Wittenberg, Halle 06120, Germany
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10
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Hess M, Roeben E, Habicht A, Seiffert S, Schmidt AM. Local dynamics in supramolecular polymer networks probed by magnetic particle nanorheology. SOFT MATTER 2019; 15:842-850. [PMID: 30608500 DOI: 10.1039/c8sm01802b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Transient supramolecular polymer networks are promising candidates as soft self-healing or stimuli-sensitive materials. In this paper, we employ a novel nanorheological approach, magnetic particle nanorheology (MPN), in order to better understand the local dynamic properties of model supramolecular networks from a molecular point of view. Hence, the bond strength between four-arm star-shaped polyethylene glycol (PEG) functionalized at the four extremities with terpyridine ligands is tuned by implementing different metal ions with variable complexation affinities for the ligand. We show that MNP allows for the evaluation of the strength and connectivity of the polymer networks by the estimation of relaxation times, mesh size, and also the viscoelastic properties of these materials. These results are compared and complemented to former outcomes on these systems that were obtained by macroscopic analytical methods. A clear dependence between the strength of the metal-ligand complex and the local dynamics of the polymeric network is observed by the nanorheological approach, which is in good agreement with previous predictions related to the complex formation constants.
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Affiliation(s)
- Melissa Hess
- Institute of Physical Chemistry, Chemistry Department, Faculty of Mathematics and Natural Sciences, University of Cologne, Luxemburger Str. 116, D-50939 Köln, Germany.
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11
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Xing K, Tress M, Cao PF, Fan F, Cheng S, Saito T, Sokolov AP. The Role of Chain-End Association Lifetime in Segmental and Chain Dynamics of Telechelic Polymers. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01210] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kunyue Xing
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
| | - Martin Tress
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
| | - Peng-Fei Cao
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Fei Fan
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
| | - Shiwang Cheng
- Department of Chemical Engineering and Material Science, Michigan State University, East Lansing, Michigan 48824, United States
| | - Tomonori Saito
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Alexei P. Sokolov
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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12
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Blanco MA, Hatch HW, Curtis JE, Shen VK. A methodology to calculate small-angle scattering profiles of macromolecular solutions from molecular simulations in the grand-canonical ensemble. J Chem Phys 2018; 149:084203. [PMID: 30193476 DOI: 10.1063/1.5029274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The theoretical framework to evaluate small-angle scattering (SAS) profiles for multi-component macromolecular solutions is re-examined from the standpoint of molecular simulations in the grand-canonical ensemble, where the chemical potentials of all species in solution are fixed. This statistical mechanical ensemble resembles more closely scattering experiments, capturing concentration fluctuations that arise from the exchange of molecules between the scattering volume and the bulk solution. The resulting grand-canonical expression relates scattering intensities to the different intra- and intermolecular pair distribution functions, as well as to the distribution of molecular concentrations on the scattering volume. This formulation represents a generalized expression that encompasses most of the existing methods to evaluate SAS profiles from molecular simulations. The grand-canonical SAS methodology is probed for a series of different implicit-solvent, homogeneous systems at conditions ranging from dilute to concentrated. These systems consist of spherical colloids, dumbbell particles, and highly flexible polymer chains. Comparison of the resulting SAS curves against classical methodologies based on either theoretical approaches or canonical simulations (i.e., at a fixed number of molecules) shows equivalence between the different scattering intensities so long as interactions between molecules are net repulsive or weakly attractive. On the other hand, for strongly attractive interactions, grand-canonical SAS profiles deviate in the low- and intermediate-q range from those calculated in a canonical ensemble. Such differences are due to the distribution of molecules becoming asymmetric, which yields a higher contribution from configurations with molecular concentrations larger than the nominal value. Additionally, for flexible systems, explicit discrimination between intra- and inter-molecular SAS contributions permits the implementation of model-free, structural analysis such as Guinier's plots at high molecular concentrations, beyond what the traditional limits are for such analysis.
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Affiliation(s)
- Marco A Blanco
- Chemical Informatics Group, Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Harold W Hatch
- Chemical Informatics Group, Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Joseph E Curtis
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Vincent K Shen
- Chemical Informatics Group, Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
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13
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Lee E, Paul W. Thermodynamics of single polyethylene and polybutylene glycols with hydrogen-bonding ends: A transition from looped to open conformations. J Chem Phys 2018; 148:084905. [DOI: 10.1063/1.5017698] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Eunsang Lee
- Institut für Physik, Martin-Luther Universität Halle-Wittenberg, Halle 06120, Germany
| | - Wolfgang Paul
- Institut für Physik, Martin-Luther Universität Halle-Wittenberg, Halle 06120, Germany
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14
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Monkenbusch M, Krutyeva M, Pyckhout-Hintzen W, Antonius W, Hövelmann CH, Allgaier J, Brás A, Farago B, Wischnewski A, Richter D. Molecular View on Supramolecular Chain and Association Dynamics. PHYSICAL REVIEW LETTERS 2016; 117:147802. [PMID: 27740839 DOI: 10.1103/physrevlett.117.147802] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Indexed: 06/06/2023]
Abstract
The chain and association dynamics of supramolecular polymer ensembles decisively determines their properties. Using neutron spin echo (NSE) spectroscopy we present molecular insight into the space and time evolution of this dynamics. Studying a well characterized ensemble of linearly associating telechelic poly(ethylene glycol) melts carrying triple H-bonding end groups, we show that H-bond breaking significantly impacts the mode spectrum of the associates. The breaking affects the mode contributions and not the relaxation times as was assumed previously. NSE spectra directly reveal the so far intangible H-bond lifetimes in the supramolecular melt and demonstrate that for both the microscopic and the macroscopic dynamics of the supramolecular ensemble the instantaneous average of the M_{w} distribution governs the system response at least as long as the Rouse picture applies.
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Affiliation(s)
- M Monkenbusch
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - M Krutyeva
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - W Pyckhout-Hintzen
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - W Antonius
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - C H Hövelmann
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - J Allgaier
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - A Brás
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - B Farago
- Institut Laue-Langevin (ILL), 71 avenue des Martyrs, 38000 Grenoble, France
| | - A Wischnewski
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - D Richter
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
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15
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Yan T, Schröter K, Herbst F, Binder WH, Thurn-Albrecht T. Unveiling the molecular mechanism of self-healing in a telechelic, supramolecular polymer network. Sci Rep 2016; 6:32356. [PMID: 27581380 PMCID: PMC5007665 DOI: 10.1038/srep32356] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 08/05/2016] [Indexed: 11/09/2022] Open
Abstract
Reversible polymeric networks can show self-healing properties due to their ability to reassemble after application of stress and fracture, but typically the relation between equilibrium molecular dynamics and self-healing kinetics has been difficult to disentangle. Here we present a well-characterized, self-assembled bulk network based on supramolecular assemblies, that allows a clear distinction between chain dynamics and network relaxation. Small angle x-ray scattering and rheological measurements provide evidence for a structurally well-defined, dense network of interconnected aggregates giving mechanical strength to the material. Different from a covalent network, the dynamic character of the supramolecular bonds enables macroscopic flow on a longer time scale and the establishment of an equilibrium structure. A combination of linear and nonlinear rheological measurements clearly identifies the terminal relaxation process as being responsible for the process of self-healing.
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Affiliation(s)
- Tingzi Yan
- Experimental Polymer Physics, Institute of Physics, Martin Luther University Halle-Wittenberg, Halle 06120, Germany
| | - Klaus Schröter
- Experimental Polymer Physics, Institute of Physics, Martin Luther University Halle-Wittenberg, Halle 06120, Germany
| | - Florian Herbst
- Chair of Macromolecular Chemistry, Institute of Chemistry, Martin Luther University Halle-Wittenberg, Halle 06120, Germany
| | - Wolfgang H. Binder
- Chair of Macromolecular Chemistry, Institute of Chemistry, Martin Luther University Halle-Wittenberg, Halle 06120, Germany
| | - Thomas Thurn-Albrecht
- Experimental Polymer Physics, Institute of Physics, Martin Luther University Halle-Wittenberg, Halle 06120, Germany
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16
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Staropoli M, Raba A, Hövelmann CH, Krutyeva M, Allgaier J, Appavou MS, Keiderling U, Stadler FJ, Pyckhout-Hintzen W, Wischnewski A, Richter D. Hydrogen Bonding in a Reversible Comb Polymer Architecture: A Microscopic and Macroscopic Investigation. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00978] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Mariapaola Staropoli
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Andreas Raba
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Claas H. Hövelmann
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Margarita Krutyeva
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Jürgen Allgaier
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | | | - Uwe Keiderling
- Helmholtz-Zentrum Berlin für Materialien and Energie, 14109 Berlin, Germany
| | - Florian J. Stadler
- Nanshan
District Key Lab for Biopolymers and Safety Evaluation, College of
Materials Science and Engineering and Department of Optoelectronic
Engineering, Shenzhen University, Shenzhen, Guangdong China
| | - Wim Pyckhout-Hintzen
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Andreas Wischnewski
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Dieter Richter
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
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17
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Allgaier J, Hövelmann CH, Wei Z, Staropoli M, Pyckhout-Hintzen W, Lühmann N, Willbold S. Synthesis and rheological behavior of poly(1,2-butylene oxide) based supramolecular architectures. RSC Adv 2016. [DOI: 10.1039/c5ra24547h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
We describe the synthesis, analysis and rheological behavior of differently functionalized poly(1,2-butylene oxide) based supramolecular polymers.
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Affiliation(s)
- Jürgen Allgaier
- Jülich Centre for Neutron Science JCNS
- Institute for Complex Systems ICS
- Forschungszentrum Jülich GmbH
- 52425 Jülich
- Germany
| | - Claas H. Hövelmann
- Jülich Centre for Neutron Science JCNS
- Institute for Complex Systems ICS
- Forschungszentrum Jülich GmbH
- 52425 Jülich
- Germany
| | - Zhang Wei
- Jülich Centre for Neutron Science JCNS
- Institute for Complex Systems ICS
- Forschungszentrum Jülich GmbH
- 52425 Jülich
- Germany
| | - Mariapaola Staropoli
- Jülich Centre for Neutron Science JCNS
- Institute for Complex Systems ICS
- Forschungszentrum Jülich GmbH
- 52425 Jülich
- Germany
| | - Wim Pyckhout-Hintzen
- Jülich Centre for Neutron Science JCNS
- Institute for Complex Systems ICS
- Forschungszentrum Jülich GmbH
- 52425 Jülich
- Germany
| | - Nicole Lühmann
- Central Institute for Engineering
- Electronics and Analytics
- ZEA-3: Analytics
- Forschungszentrum Jülich GmbH
- 52425 Jülich
| | - Sabine Willbold
- Central Institute for Engineering
- Electronics and Analytics
- ZEA-3: Analytics
- Forschungszentrum Jülich GmbH
- 52425 Jülich
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18
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Krutyeva M, Brás AR, Antonius W, Hövelmann CH, Poulos AS, Allgaier J, Radulescu A, Lindner P, Pyckhout-Hintzen W, Wischnewski A, Richter D. Association Behavior, Diffusion, and Viscosity of End-Functionalized Supramolecular Poly(ethylene glycol) in the Melt State. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b02060] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- M. Krutyeva
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - A. R. Brás
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - W. Antonius
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - C. H. Hövelmann
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - A. S. Poulos
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - J. Allgaier
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - A. Radulescu
- Jülich Centre for Neutron Science (JCNS) at MLZ, 85747 Garching, Germany
| | - P. Lindner
- Institut Laue-Langevin (ILL), 71 avenue des Martyrs, 38000 Grenoble, France
| | - W. Pyckhout-Hintzen
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - A. Wischnewski
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - D. Richter
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
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19
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Yang L, Tan X, Wang Z, Zhang X. Supramolecular Polymers: Historical Development, Preparation, Characterization, and Functions. Chem Rev 2015; 115:7196-239. [DOI: 10.1021/cr500633b] [Citation(s) in RCA: 906] [Impact Index Per Article: 100.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Liulin Yang
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xinxin Tan
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhiqiang Wang
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xi Zhang
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
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20
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Characterization of Self-Healing Polymers: From Macroscopic Healing Tests to the Molecular Mechanism. SELF-HEALING MATERIALS 2015. [DOI: 10.1007/12_2015_341] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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21
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Hydrogen Bonding in Supramolecular Polymer Networks: Glasses, Melts, and Elastomers. SUPRAMOLECULAR POLYMER NETWORKS AND GELS 2015. [DOI: 10.1007/978-3-319-15404-6_2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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