1
|
Verbeke R, Nulens I, Thijs M, Lenaerts M, Bastin M, Van Goethem C, Koeckelberghs G, Vankelecom IF. Solutes in solvent resistant and solvent tolerant nanofiltration: How molecular interactions impact membrane rejection. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
|
2
|
Kim I, Pascal TA, Park SJ, Diallo M, Goddard III WA, Jung Y. pH-Dependent Conformations for Hyperbranched Poly(ethylenimine) from All-Atom Molecular Dynamics. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02573] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- In Kim
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Tod A. Pascal
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Seong-Jik Park
- Department of Bioresources and Rural Systems Engineering, Hankyong National University, Kyonggi 17579, South Korea
| | - Mamadou Diallo
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - William A. Goddard III
- Materials and Process Simulation Center, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Yousung Jung
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| |
Collapse
|
3
|
Yu C, Ma L, Li S, Tan H, Zhou Y, Yan D. HBP Builder: A Tool to Generate Hyperbranched Polymers and Hyperbranched Multi-Arm Copolymers for Coarse-grained and Fully Atomistic Molecular Simulations. Sci Rep 2016; 6:26264. [PMID: 27188541 PMCID: PMC4870682 DOI: 10.1038/srep26264] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 04/28/2016] [Indexed: 12/31/2022] Open
Abstract
Computer simulation has been becoming a versatile tool that can investigate detailed information from the microscopic scale to the mesoscopic scale. However, the crucial first step of molecular simulation is model building, particularly for hyperbranched polymers (HBPs) and hyperbranched multi-arm copolymers (HBMCs) with complex and various topological structures. Unlike well-defined polymers, not only the molar weight of HBPs/HBMCs with polydispersity, but the HBPs/HBMCs with the same degree of polymerization (DP) and degree of branching (DB) also have many possible topological structures, thus making difficulties for user to build model in molecular simulation. In order to build a bridge between model building and molecular simulation of HBPs and HBMCs, we developed HBP Builder, a C language open source HBPs/HBMCs building toolkit. HBP Builder implements an automated protocol to build various coarse-grained and fully atomistic structures of HBPs/HBMCs according to user's specific requirements. Meanwhile, coarse-grained and fully atomistic output structures can be directly employed in popular simulation packages, including HOOMD, Tinker and Gromacs. Moreover, HBP Builder has an easy-to-use graphical user interface and the modular architecture, making it easy to extend and reuse it as a part of other program.
Collapse
Affiliation(s)
- Chunyang Yu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Li Ma
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Shanlong Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Haina Tan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yongfeng Zhou
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Deyue Yan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| |
Collapse
|
4
|
Rai GJ, Kumar A, Biswas P. Effect of excluded volume on the rheology and transport dynamics of randomly hyperbranched polymers. J Chem Phys 2015; 142:174906. [DOI: 10.1063/1.4919643] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Gobind Ji Rai
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Amit Kumar
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Parbati Biswas
- Department of Chemistry, University of Delhi, Delhi 110007, India
| |
Collapse
|
5
|
|
6
|
Kumar A, Rai GJ, Biswas P. Conformation and intramolecular relaxation dynamics of semiflexible randomly hyperbranched polymers. J Chem Phys 2013; 138:104902. [DOI: 10.1063/1.4794310] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
7
|
Lyulin SV, Reshetnikov EV, Darinskii AA, Lyulin AV. Structural behavior of hyperbranched polymers in solvents of various qualities: Brownian dynamics simulation. POLYMER SCIENCE SERIES A 2011. [DOI: 10.1134/s0965545x11090082] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
8
|
Konkolewicz D, Perrier S, Stapleton D, Gray-Weale A. Modeling highly branched structures: Description of the solution structures of dendrimers, polyglycerol, and glycogen. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/polb.22340] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
9
|
Zhu X, Zhou Y, Yan D. Influence of branching architecture on polymer properties. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/polb.22320] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
10
|
Konkolewicz D, Gray-Weale A, Perrier S. Describing the Structure of a Randomly Hyperbranched Polymer. MACROMOL THEOR SIMUL 2010. [DOI: 10.1002/mats.201000006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
11
|
Konkolewicz D, Gray-Weale A, Perrier S. The structure of randomly branched polymers synthesized by living radical methods. Polym Chem 2010. [DOI: 10.1039/c0py00064g] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
12
|
Gray-Weale A, Gilbert RG. General description of the structure of branched polymers. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23458] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
13
|
Abstract
The location of the end-groups in hyperbranched polymers is modelled by considering two synthetic strategies. The first synthesis is to make linear chains, and then link these chains. The second strategy is to sequentially add multifunctional monomers. The first strategy represents hyperbranched polymers synthesized by living radical methods, whereas the second represents polycondensations at low conversion. The high-conversion case is also considered. The present analysis suggests that sequential addition of monomers places more end-groups at the polymer’s surface than synthesis by linking chains. If the end-groups are catalysts, synthesis by the addition of monomers should give fewer inaccessible catalysts.
Collapse
|
14
|
Konkolewicz D, Thorn-Seshold O, Gray-Weale A. Models for randomly hyperbranched polymers: Theory and simulation. J Chem Phys 2008; 129:054901. [PMID: 18698919 DOI: 10.1063/1.2939242] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We derive theoretical models for the structures of randomly hyperbranched polymers in solution, and test them against computer simulations. The models are based on the same basic approach: Building a structure by the random assembly of "simple units," which may be monomers, linear chains, or larger branched species. Comparisons to simulation reported here show that the conformations of hyperbranched species, i.e., their radii of gyration and full density profiles, are accurately described by this approach. These stringent tests complement previous tests against experiment. We include the effects of solvent quality at the mean-field level. Our model works best for hyperbranched structures, but also reproduces very well the simulated density profiles of dendrimers. The models reported here provide a simple, but realistic, picture of the physical influences that affect the conformations of hyperbranched species.
Collapse
Affiliation(s)
- Dominik Konkolewicz
- School of Chemistry F11, University of Sydney, New South Wales 2006, Australia
| | | | | |
Collapse
|
15
|
Dalakoglou GK, Karatasos K, Lyulin SV, Lyulin AV. Shear-induced effects in hyperbranched-linear polyelectrolyte complexes. J Chem Phys 2008; 129:034901. [DOI: 10.1063/1.2952518] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
16
|
Lyulin S, Karatasos K, Darinskii A, Larin S, Lyulin A. Structural effects in overcharging in complexes of hyperbranched polymers with linear polyelectrolytes. SOFT MATTER 2008; 4:453-457. [PMID: 32907203 DOI: 10.1039/b716647h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
New insight is provided by a combined theoretical and simulational approach regarding the effects of structural characteristics of the constituents, on the overcharging phenomena in complexes formed by hyperbranched polymers with linear polyelectrolytes.
Collapse
Affiliation(s)
- Sergey Lyulin
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoj pr. 31, St. Petersburg, 199004, Russia.
| | - Kostas Karatasos
- Physical Chemistry Laboratory, Chemical Engineering Department, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece.
| | - Anatolij Darinskii
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoj pr. 31, St. Petersburg, 199004, Russia.
| | - Sergey Larin
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoj pr. 31, St. Petersburg, 199004, Russia.
| | - Alexey Lyulin
- Group Polymer Physics, Eindhoven Polymer Laboratories and Dutch Polymer Institute, Technische Universiteit Eindhoven, P.O. Box 513, MB Eindhoven, 5600, The Netherlands.
| |
Collapse
|
17
|
Dalakoglou GK, Karatasos K, Lyulin SV, Lyulin AV. Effects of topology and size on statics and dynamics of complexes of hyperbranched polymers with linear polyelectrolytes. J Chem Phys 2007; 127:214903. [DOI: 10.1063/1.2802300] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
18
|
Konkolewicz D, Gilbert RG, Gray-Weale A. Randomly hyperbranched polymers. PHYSICAL REVIEW LETTERS 2007; 98:238301. [PMID: 17677941 DOI: 10.1103/physrevlett.98.238301] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2007] [Indexed: 05/16/2023]
Abstract
We describe a model for the structures of randomly hyperbranched polymers in solution, and find a logarithmic growth of radius with polymer mass. We include segmental overcrowding, which puts an upper limit on the density. The model is tested against simulations, against data on amylopectin, a major component of starch, on glycogen, and on polyglycerols. For samples of synthetic polyglycerol and glycogen, our model holds well for all the available data. The model reveals higher-level scaling structure in glycogen, related to the beta particles seen in electron microscopy.
Collapse
|