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Javan Nikkhah S, Sammalkorpi M. Single core and multicore aggregates from a polymer mixture: A dissipative particle dynamics study. J Colloid Interface Sci 2023; 635:231-241. [PMID: 36587575 DOI: 10.1016/j.jcis.2022.12.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/04/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
HYPOTHESIS Multicore block copolymer aggregates correspond to self-assembly such that the polymer system spontaneously phase separates to multiple, droplet-like cores differing in the composition from the polymer surroundings. Such multiple core aggregates are highly useful capsules for different applications, e.g., drug transport, catalysis, controlled solvation, and chemical reactions platforms. We postulate that polymer system composition provides a direct means for designing polymer systems that self-assemble to such morphologies and controlling the assembly response. SIMULATIONS Using dissipative particle dynamics (DPD) simulations, we examine the self-assembly of a mixture of highly and weakly solvophobic homopolymers and an amphiphilic block copolymer in the presence of solvent. We map the multicore vs single core (core-shell particles) assembly response and aggregate structure in terms of block copolymer concentration, polymer component ratios, and chain length of the weakly solvophobic homopolymer. FINDINGS For fixed components and polymer chemistries, the amount of block copolymer is the key to controlling single core vs multicore aggregation. We find a polymer system dependent critical copolymer concentration for the multicore aggregation and that a minimum level of incompatibility between the solvent and the weakly solvophobic component is required for multicore assembly. We discuss the implications for polymer system design for multicore assemblies. In summary, the study presents guidelines to produce multicore aggregates and to tune the assembly from multicore aggregation to single core core-shell particles.
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Affiliation(s)
- Sousa Javan Nikkhah
- Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland; Department of Physics, Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland; Department of Chemical Sciences, Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland.
| | - Maria Sammalkorpi
- Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland; Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland; Academy of Finland Center of Excellence in Life-Inspired Hybrid Materials (LIBER), Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland.
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Hao J, Wang J, Pan H, Sang Y, Wang D, Wang Z, Ai J, Lin B, Chen L. pH-redox responsive polymer-doxorubicin prodrug micelles studied by molecular dynamics, dissipative particle dynamics simulations and experiments. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Harmat AL, Javan Nikkhah S, Sammalkorpi M. Dissipative particle dynamics simulations of H-shaped diblock copolymer self-assembly in solvent. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124198] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Chiangraeng N, Keyen U, Yoshida N, Nimmanpipug P. Temperature-responsive morphology formation of a PS- b-PI copolymer: a dissipative particle dynamics simulation study. SOFT MATTER 2021; 17:6248-6258. [PMID: 34124726 DOI: 10.1039/d1sm00152c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Self-assembly responsiveness to stimuli of polystyrene-block-polyisoprene (PS-b-PI) diblock copolymer materials is explored by means of classical molecular dynamics (MD) and dissipative particle dynamics (DPD) simulations. A concerted relationship between the parameters achieved from atomistic and DPD simulations is obtained for this molecular recognition as clearly pronounced in a phase transition. Effects of temperature, model size and composition on the morphological formation were systematically investigated for the diblock copolymeric system. Structural changes resulting in the evolution of rheology as well as an equilibrium ordered structure were analyzed in terms of order parameters and radial distribution functions. From our models, various morphologies were observed including discrete clusters (sphere-liked morphology), connected clusters (gyroid-liked morphology), hexagonally packed cylinders (HEX), connected cylinders, irregular cylinders, perfect lamellae, perforated lamellae and defected lamellae. Based on this finding, a bottom-up multi-scale simulation of the PS-b-PI diblock copolymer provides a link between equilibrium copolymeric morphologies and the crucial parameters.
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Affiliation(s)
- Natthiti Chiangraeng
- Computational Simulation Modeling Laboratory, Department of Chemistry and Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand. and Doctor of Philosophy Program in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Ukrit Keyen
- Computational Simulation Modeling Laboratory, Department of Chemistry and Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Norio Yoshida
- Department of Chemistry, Graduate School of Science, Kyushu University, Fukuoka 812-8582, Japan
| | - Piyarat Nimmanpipug
- Computational Simulation Modeling Laboratory, Department of Chemistry and Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
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5
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Javan Nikkhah S, Turunen E, Lepo A, Ala-Nissila T, Sammalkorpi M. Multicore Assemblies from Three-Component Linear Homo-Copolymer Systems: A Coarse-Grained Modeling Study. Polymers (Basel) 2021; 13:polym13132193. [PMID: 34209428 PMCID: PMC8272115 DOI: 10.3390/polym13132193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/22/2021] [Accepted: 06/26/2021] [Indexed: 01/03/2023] Open
Abstract
Multicore polymer micelles and aggregates are assemblies that contain several cores. The dual-length-scale compartmentalized solvophobic–solvophilic molecular environment makes them useful for, e.g., advanced drug delivery, high-precision synthesis platforms, confined catalysis, and sensor device applications. However, designing and regulating polymer systems that self-assemble to such morphologies remains a challenge. Using dissipative particle dynamics (DPD) simulations, we demonstrate how simple, three-component linear polymer systems consisting of free solvophilic and solvophobic homopolymers, and di-block copolymers, can self-assemble in solution to form well-defined multicore assemblies. We examine the polymer property range over which multicore assemblies can be expected and how the assemblies can be tuned both in terms of their morphology and structure. For a fixed degree of polymerization, a certain level of hydrophobicity is required for the solvophobic component to lead to formation of multicore assemblies. Additionally, the transition from single-core to multicore requires a relatively high solvophobicity difference between the solvophilic and solvophobic polymer components. Furthermore, if the solvophilic polymer is replaced by a solvophobic species, well-defined multicore–multicompartment aggregates can be obtained. The findings provide guidelines for multicore assemblies’ formation from simple three-component systems and how to control polymer particle morphology and structure.
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Affiliation(s)
- Sousa Javan Nikkhah
- Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
- Department of Physics, Bernal Institute, University of Limerick, V94T9PX Limerick, Ireland
- Correspondence: (S.J.N.); (M.S.)
| | - Elsi Turunen
- R&D and Technology, Kemira Oyj, P.O. Box 44, FI-02271 Espoo, Finland; (E.T.); (A.L.)
| | - Anneli Lepo
- R&D and Technology, Kemira Oyj, P.O. Box 44, FI-02271 Espoo, Finland; (E.T.); (A.L.)
| | - Tapio Ala-Nissila
- QTF Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076 Aalto, Finland;
- Centre for Interdisciplinary Mathematical Modelling and Department of Mathematical Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK
| | - Maria Sammalkorpi
- Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
- Correspondence: (S.J.N.); (M.S.)
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6
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Zhang F, Zheng J, Li Z, Cai Z, Wang F, Yang D. Purification, Characterization, and Self-Assembly of the Polysaccharide from Allium schoenoprasum. Foods 2021; 10:foods10061352. [PMID: 34208119 PMCID: PMC8230776 DOI: 10.3390/foods10061352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/01/2021] [Accepted: 06/09/2021] [Indexed: 11/16/2022] Open
Abstract
The major polysaccharide component from the stalk of Allium schoenoprasum (AssP) was extracted and purified. Gel filtration chromatography purified AssP exhibited a molecular weight of around 1.7 kDa, which was verified by MALDI-ToF-MS. The monosaccharide analysis revealed its composition as rhamnose: arabinose: galactose: glucose: mannose: fructose with a molar ratio of 0.03:2.46:3.71:3.35:1.00:9.93, respectively. The Congo-red assay indicated that there was no tertiary structure of this polysaccharide, however, it self-assembled into a homogenous nanoparticle with a diameter of ~600 nm as revealed by the dynamic light scattering measurement. The solution behavior of this polysaccharide was simulated. The association of this polysaccharide was both time dependent and concentration dependent. AssP forms spherical particles spontaneously as time passes by, and when the AssP concentration increased, the spherical particles increased their sizes and eventually merged into cylindrical micelles. The diversity of AssP hydrodynamic behavior endowed potential versatility in its future applications.
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Affiliation(s)
- Fengrui Zhang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (F.Z.); (J.Z.); (Z.L.); (Z.C.); (F.W.)
| | - Jun Zheng
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (F.Z.); (J.Z.); (Z.L.); (Z.C.); (F.W.)
| | - Zeyu Li
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (F.Z.); (J.Z.); (Z.L.); (Z.C.); (F.W.)
| | - Zixuan Cai
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (F.Z.); (J.Z.); (Z.L.); (Z.C.); (F.W.)
- Xinghua Industrial Research Centre for Food Science and Human Health, China Agricultural University, Xinghua 225700, China
| | - Fengqiao Wang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (F.Z.); (J.Z.); (Z.L.); (Z.C.); (F.W.)
| | - Dong Yang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (F.Z.); (J.Z.); (Z.L.); (Z.C.); (F.W.)
- Xinghua Industrial Research Centre for Food Science and Human Health, China Agricultural University, Xinghua 225700, China
- Correspondence: ; Tel.: +86-010-6273-7129
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7
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Chen Y, Liu Y, Xing T, Sun B, Feng Z, Li P, Yang Z, Li S, Chen S. Effects of salt concentration on the structure and properties of composite fiber of carboxymethyl cellulose/N-2-hydroxylpropyl trimethyl ammonium chloride chitosan prepared by polyelectoyte complexation-freeze drying. Int J Biol Macromol 2020; 151:1030-1039. [PMID: 31760008 DOI: 10.1016/j.ijbiomac.2019.11.123] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 12/19/2022]
Abstract
The conventional electrospinning process for the preparation of fibers usually require complex equipment and complicated preparation processes, as well as chemical crosslinkers and organic solvents, which limits its application in the preparation of biomedical materials. In the current study, carboxymethyl cellulose/N-2-hydroxylpropyl trimethyl ammonium chloride chitosan (CMC/HACC) composite fibers were fabricated by polyelectrolyte complexation (PEC) and freeze drying coupled method in both pure water and NaCl solution. The structures of the as-prepared fibers and the effects of NaCl concentration on the structures of fibers were studied by FTIR, solid 13C NMR, XRD, XPS and SEM. The formation mechanism of the composite fiber and the effects of NaCl concentration on structure and properties of the composite fiber were simulated in the Materials Studio software and discussed. The swelling properties and the thermal decomposition kinetics of the composite fiber were studied. The results suggest that the addition of NaCl electrolyte to the complexing system significantly affects the structure and properties of the PEC fiber. Our work has provided a new preparation route to the composite fibers of natural polymers with controllable structures and properties by the combination of PEC and freeze drying techniques using NaCl with desired concentration as the electrolyte.
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Affiliation(s)
- Yu Chen
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China.
| | - Yang Liu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Tao Xing
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China; Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Boyang Sun
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China; Department of Polymer Science and Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiaotong University, Shanghai 200240, PR China
| | - Zhipan Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Puwang Li
- Agriculture Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, PR China
| | - Ziming Yang
- Agriculture Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, PR China
| | - Sidong Li
- School of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524001, PR China
| | - Shusen Chen
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
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8
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Rostami-Tapeh-Esmail E, Golshan M, Salami-Kalajahi M, Roghani-Mamaqani H. UV-stabilized self-assembled amphiphilic triblock terpolymers supramolecular structures with low cytotoxicity as doxorubicin carriers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110745. [DOI: 10.1016/j.msec.2020.110745] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/24/2020] [Accepted: 02/06/2020] [Indexed: 10/25/2022]
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9
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Zhao J, Xing T, Li Q, Chen Y, Yao W, Jin S, Chen S. Preparation of chitosan and carboxymethylcellulose‐based polyelectrolyte complex hydrogel via SD‐A‐SGT method and its adsorption of anionic and cationic dye. J Appl Polym Sci 2020. [DOI: 10.1002/app.48980] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jian Zhao
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
- Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy TechnologyTsinghua University Beijing China
| | - Tao Xing
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Qin Li
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
| | - Yu Chen
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
| | - Weishang Yao
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
| | - Shaohua Jin
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
| | - Shusen Chen
- School of Materials Science and EngineeringBeijing Institute of Technology Beijing China
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10
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Zhao Y, Ma SM, Li B, De Nicola A, Yu NS, Dong B. Micellization of Pluronic P123 in Water/Ethanol/Turpentine Oil Mixed Solvents: Hybrid Particle-Field Molecular Dynamic Simulation. Polymers (Basel) 2019; 11:E1806. [PMID: 31684204 PMCID: PMC6918437 DOI: 10.3390/polym11111806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/28/2019] [Accepted: 11/01/2019] [Indexed: 01/30/2023] Open
Abstract
The hybrid particle-field molecular dynamics simulation method (MD-SCF) was applied to study the self-assembly of Pluronic PEO20-PPO70-PEO20 (P123) in water/ethanol/turpentine oil- mixed solvents. In particular, the micellization process of P123 at low concentration (less than 20%) in water/ethanol/turpentine oil-mixed solvents was investigated. The aggregation number, radius of gyration, and radial density profiles were calculated and compared with experimental data to characterize the structures of the micelles self-assembled from P123 in the mixed solvent. This study confirms that the larger-sized micelles are formed in the presence of ethanol, in addition to the turpentine oil-swollen micelles. Furthermore, the spherical micelles and vesicles were both observed in the self-assembly of P123 in the water/ethanol/turpentine oil-mixed solvent. The results of this work aid the understanding of the influence of ethanol and oil on P123 micellization, which will help with the design of effective copolymer-based formulations.
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Affiliation(s)
- Ying Zhao
- Institute of Nano-photonics, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China.
| | - Su-Min Ma
- Institute of Nano-photonics, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China.
- Institute of Theoretical Chemistry, Jilin University, Changchun 130021, China.
| | - Bin Li
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
| | - Antonio De Nicola
- Department of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata-ken 992-8510, Japan.
| | - Nai-Sen Yu
- Institute of Nano-photonics, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China.
| | - Bin Dong
- Institute of Nano-photonics, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China.
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11
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Yan YD, Xue YH, Zhao HY, Liu H, Lu ZY, Gu FL. Insight into the Polymerization-Induced Self-Assembly via a Realistic Computer Simulation Strategy. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01051] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yu-Dou Yan
- Laboratory of Theoretical and Computational Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130023, China
| | - Yao-Hong Xue
- Information Science School, Guangdong University of Finance and Economics, Guangzhou 510320, China
| | - Huan-Yu Zhao
- Laboratory of Theoretical and Computational Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130023, China
| | - Hong Liu
- Laboratory of Theoretical and Computational Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130023, China
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, China
| | - Zhong-Yuan Lu
- Laboratory of Theoretical and Computational Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130023, China
| | - Feng-Long Gu
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, China
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12
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Tan H, Li S, Li K, Yu C, Lu Z, Zhou Y. Shape Transformations of Vesicles Self-Assembled from Amphiphilic Hyperbranched Multiarm Copolymers via Simulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6929-6938. [PMID: 30091926 DOI: 10.1021/acs.langmuir.8b02206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The understanding of shape transformations of vesicles is of fundamental importance in biological and clinical sciences. Hyperbranched polymer vesicles (branched polymersomes) are newly emerging polymer vesicles with special structure and property. They have also been regarded as a good model for biomembranes. However, the shape transformations of hyperbranched polymer vesicles have not been studied from either an experimental or theoretical level. Herein, the shape transformations of vesicles self-assembled from amphiphilic hyperbranched multiarm copolymers (HMCs) in response to the interaction parameters between the hydrophobic core and hydrophilic arms and the polymer concentrations are investigated carefully through dissipative particle dynamics (DPD) simulations. In the morphological phase diagram, two types of vesicles are obtained: one type corresponds to vesicles without holes formed at low concentrations including unilamellar vesicles, double-lamellar vesicles, discocyte-shaped vesicles, and tubular vesicles, and the other type corresponds to vesicles with holes formed at high concentrations including stomatocyte-shaped vesicles, toroidal vesicles, genus-3 (G-3) toroidal vesicles with three holes, and genus-4 (G-4) toroidal vesicles with four holes. In addition, both the self-assembly mechanisms and the dynamics for the formation of these vesicles have been systematically studied. The current work will offer theoretical support for fabricating novel vesicles with various shapes from hyperbranched polymers.
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Affiliation(s)
- Haina Tan
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai , China 200240
| | - Shanlong Li
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai , China 200240
| | - Ke Li
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai , China 200240
| | - Chunyang Yu
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai , China 200240
| | - Zhongyuan Lu
- Institute of Theoretical Chemistry, State Key Laboratory of Supramolecular Structure and Materials , Jilin University , Changchun , China 130021
| | - Yongfeng Zhou
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai , China 200240
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13
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Xiang W, Zhu Z, Wang K, Zhou L. Mesoscopic simulation study on the structural transition of comb-shaped block copolymer lamellae on chemically patterned substrates: from vertical to lateral. Phys Chem Chem Phys 2019; 21:641-649. [PMID: 30540306 DOI: 10.1039/c8cp06317f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Directed self-assembly of polymers on chemically homogeneous and heterogeneous patterns is of considerable interest for nanolithography and nanofluidic devices. By employing dissipative particle dynamics (DPD) technology, we explore the nanoscale phase separation of comb-like block copolymers (CBCPs) confined at chemically homogeneous and heterogeneous substrates. Herein, the geometric and energetic influences of striped substrates on the microphases are firstly studied using various geometries of annular stripes for the heterogeneous substrates. Different parameters including the stripe geometry, substrate selectivity, and film thickness are studied systematically. T-Junction lamellae and acclivitous alignment are achieved on the heterogeneous substrates because of the synergy of geometrical effects of the striped pattern from heterogeneous substrates together with weak preference of the substrates toward one of the CBCP components. In this study, we provide a detailed understanding of microphase separation of CBCPs on the heterogeneous substrates, and the approach outlined in the present study offers a crucial tool for experimentalists to design CBCP thin films with complex device-oriented structures.
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Affiliation(s)
- Wenjun Xiang
- School of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, Sichuan 635000, P. R. China.
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14
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Ma S, Du W, Luo Y. Simulation of GAP/HTPB phase behaviors in plasticizers and its application in composite solid propellant. E-POLYMERS 2018. [DOI: 10.1515/epoly-2018-0012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractDissipative particle dynamics and molecular simulations were carried out to investigate the phase behaviors of glycidyl azide polymer (GAP)/hydroxyl-terminated polybutadiene (HTPB) polymer blend in dioctyl sebacate (DOS), and mixture of DOS and bis(2,2-dinitropropyl)formal/acetal (A3), respectively. The rheology of GAP/HTPB propellant slurry plasticized by A3/DOS was studied. First, single-phase aggregations of GAP and HTPB appear slightly in A3/DOS whereas it is conspicuous in DOS, which results from the small surface tension between the GAP/HTPB plasticized by A3/DOS and the weak thermal diffusion of this blend. Furthermore, with the plasticizing ratio (po/pl) increasing to 1.2, the GAP/HTPB propellant slurry plasticized by A3/DOS exhibits small viscosity and yield stress, and the Newtonian-like behavior of slurry improves its manufacturability. Finally, integral GAP/HTPB-based propellant can be obtained using A3/DOS as plasticizers.
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Affiliation(s)
- Song Ma
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Wenqian Du
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yunjun Luo
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
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15
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Yu X, Jin Y, Du L, Sun M, Wang J, Li Q, Zhang X, Gao Z, Ding P. Transdermal Cubic Phases of Metformin Hydrochloride: In Silico and in Vitro Studies of Delivery Mechanisms. Mol Pharm 2018; 15:3121-3132. [DOI: 10.1021/acs.molpharmaceut.8b00209] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiang Yu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 27 Taiping Road, Beijing 100850, China
| | - Yiguang Jin
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 27 Taiping Road, Beijing 100850, China
| | - Lina Du
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 27 Taiping Road, Beijing 100850, China
| | - Mengchi Sun
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Jian Wang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Qiu Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida Padre Tomas Pereira, Taipa, Macao SAR, China
| | - Xiangyu Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Zisen Gao
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
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16
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Jin Y, Guo D, Li B, Xu S, Cheng J, Li L, Wen X, Pi P. Synthesis and self-assembly behavior of polyhedral oligomeric silsesquioxane-based triblock copolymers in selective solvents by dissipative particle dynamics simulation. Phys Chem Chem Phys 2018; 20:4074-4082. [DOI: 10.1039/c7cp06020c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembly behaviors of POSS-based triblock copolymers were studied by DPD, and the results were in qualitative agreement with the experimental data.
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Affiliation(s)
- Yun Jin
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Danyi Guo
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Bo Li
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Shouping Xu
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Jiang Cheng
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Li Li
- School of Environment and Energy
- South China University of Technology
- Guangzhou 510640
- China
| | - Xiufang Wen
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Pihui Pi
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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17
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Gao HM, Liu H, Qian HJ, Jiao GS, Lu ZY. Multiscale simulations of ligand adsorption and exchange on gold nanoparticles. Phys Chem Chem Phys 2018; 20:1381-1394. [PMID: 29271449 DOI: 10.1039/c7cp07039j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Multiscale simulations of CTAB/PEG-SH ligand adsorption and exchange kinetics on gold nanoparticles.
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Affiliation(s)
- Hui-Min Gao
- State Key Laboratory of Supramolecular Structure and Materials
- Laboratory of Theoretical and Computational Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130021
| | - Hong Liu
- State Key Laboratory of Supramolecular Structure and Materials
- Laboratory of Theoretical and Computational Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130021
| | - Hu-Jun Qian
- State Key Laboratory of Supramolecular Structure and Materials
- Laboratory of Theoretical and Computational Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130021
| | - Gui-Sheng Jiao
- State Key Laboratory of Supramolecular Structure and Materials
- Laboratory of Theoretical and Computational Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130021
| | - Zhong-Yuan Lu
- State Key Laboratory of Supramolecular Structure and Materials
- Laboratory of Theoretical and Computational Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130021
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18
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Tan H, Yu C, Lu Z, Zhou Y, Yan D. A dissipative particle dynamics simulation study on phase diagrams for the self-assembly of amphiphilic hyperbranched multiarm copolymers in various solvents. SOFT MATTER 2017; 13:6178-6188. [PMID: 28798969 DOI: 10.1039/c7sm01170a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Self-assembly of amphiphilic hyperbranched multiarm copolymers (HMCs) has shown great potential for preparing all kinds of delicate supramolecular structures in all scales and dimensions in solution. However, theoretical studies on the influencing factors for the self-assembly of HMCs have been greatly lagging behind. The phase diagram of HMCs in selective solvents is very necessary but has not been disclosed up to now. Here, the self-assembly of HMCs with different hydrophilic fractions in various solvents was studied systematically by using dissipative particle dynamics (DPD) simulations. Three morphological phase diagrams are constructed and a rich variety of morphologies, ranging from spherical micelles, worm-like micelles, membranes, vesicles, vesosomes, small micellar aggregates (SMAs), and aggregates of spherical and worm-like micelles to helical micelles, are obtained. In addition, both the self-assembly mechanisms and the dynamic processes for the formation of these self-assemblies have been systematically investigated. The simulation results are consistent with available experimental observations. Besides, several novel structures, like aggregates of spherical and worm-like micelles, vesosomes and helical micelles, are firstly discovered for HMC self-assembly. We believe the current work will extend the knowledge on the self-assembly of HMCs, especially on the control of supramolecular structures and on fabricating novel self-assemblies.
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Affiliation(s)
- 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.
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19
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Deshmukh AS, Chauhan PN, Noolvi MN, Chaturvedi K, Ganguly K, Shukla SS, Nadagouda MN, Aminabhavi TM. Polymeric micelles: Basic research to clinical practice. Int J Pharm 2017; 532:249-268. [PMID: 28882486 DOI: 10.1016/j.ijpharm.2017.09.005] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 09/02/2017] [Accepted: 09/02/2017] [Indexed: 12/17/2022]
Abstract
Rapidly developing polymeric micelles as potential targeting carriers has intensified the need for better understanding of the underlying principles related to the selection of suitable delivery materials for designing, characterizing, drug loading, improving stability, targetability, biosafety and efficacy. The emergence of advanced analytical tools such as fluorescence resonance energy transfer and dissipative particle dynamics has identified new dimensions of these nanostructures and their behavior in much greater details. This review summarizes recent efforts in the development of polymeric micelles with respect to their architecture, formulation strategy and targeting possibilities along with their preclinical and clinical aspects. Literature of the past decade is discussed critically with special reference to the chemistry involved in the formation and clinical applications of these versatile materials. Thus, our main objective is to provide a timely update on the current status of polymeric micelles highlighting their applications and the important parameters that have led to successful delivery of drugs to the site of action.
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Affiliation(s)
- Anand S Deshmukh
- Department of Pharmaceutical Research, Shree Dhanvantary Pharmacy College, Kim, Surat, Gujarat 394 110, India.
| | - Pratik N Chauhan
- Department of Pharmaceutical Research, Shree Dhanvantary Pharmacy College, Kim, Surat, Gujarat 394 110, India
| | - Malleshappa N Noolvi
- Department of Pharmaceutical Research, Shree Dhanvantary Pharmacy College, Kim, Surat, Gujarat 394 110, India
| | - Kiran Chaturvedi
- Department of Pharmaceutical Research, Shree Dhanvantary Pharmacy College, Kim, Surat, Gujarat 394 110, India
| | - Kuntal Ganguly
- Department of Pharmaceutical Research, Shree Dhanvantary Pharmacy College, Kim, Surat, Gujarat 394 110, India
| | - Shyam S Shukla
- Department of Pharmaceutical Research, Shree Dhanvantary Pharmacy College, Kim, Surat, Gujarat 394 110, India
| | - Mallikarjuna N Nadagouda
- Department of Pharmaceutical Research, Shree Dhanvantary Pharmacy College, Kim, Surat, Gujarat 394 110, India
| | - Tejraj M Aminabhavi
- Department of Pharmaceutical Research, Shree Dhanvantary Pharmacy College, Kim, Surat, Gujarat 394 110, India.
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20
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Dissipative particle dynamics simulation of phase separation in semiconducting/ferroelectric blend resistive films. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Song X, Zhao S, Fang S, Ma Y, Duan M. Mesoscopic Simulations of Adsorption and Association of PEO-PPO-PEO Triblock Copolymers on a Hydrophobic Surface: From Mushroom Hemisphere to Rectangle Brush. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:11375-11385. [PMID: 27762563 DOI: 10.1021/acs.langmuir.6b02414] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The dissipative particle dynamics (DPD) method is used to investigate the adsorption behavior of PEO-PPO-PEO triblock copolymers at the liquid/solid interface. The effect of molecular architecture on the self-assembled monolayer adsorption of PEO-PPO-PEO triblock copolymers on hydrophobic surfaces is elucidated by the adsorption process, film properties, and adsorption morphologies. The adsorption thicknesses on hydrophobic surfaces and the diffusion coefficient as well as the aggregation number of Pluronic copolymers in aqueous solution observed in our simulations agree well with previous experimental and numerical observations. The radial distribution function revealed that the ability of self-assembly on hydrophobic surfaces is P123 > P84 > L64 > P105 > F127, which increased with the EO ratio of the Pluronic copolymers. Moreover, the shape parameter and the degree of anisotropy increase with increasing molecular weight and mole ratio of PO of the Pluronic copolymers. Depending on the conformation of different Pluronic copolymers, the morphology transition of three regimes on hydrophobic surfaces is present: mushroom or hemisphere, progressively semiellipsoid, and rectangle brush regimes induced by decreasing molecular weight and mole ratio of EO of Pluronic copolymers.
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Affiliation(s)
- Xianyu Song
- Department of Mechanical and Electrical Engineering, Dazhou Vocational and Technical College , Dazhou, Sichuan 635000, P. R. China
| | - Shuangliang Zhao
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology , Shanghai 200237, P. R. China
| | - Shenwen Fang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University , Chengdu 610500, P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
| | - Yongzhang Ma
- Sichuan Province Academy of Industrial Environmental Monitoring, Chengdu 610500, P. R. China
| | - Ming Duan
- College of Chemistry and Chemical Engineering, Southwest Petroleum University , Chengdu 610500, P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
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22
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Ramezani M, Shamsara J. Application of DPD in the design of polymeric nano-micelles as drug carriers. J Mol Graph Model 2016; 66:1-8. [DOI: 10.1016/j.jmgm.2016.01.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 01/26/2016] [Accepted: 01/27/2016] [Indexed: 11/29/2022]
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23
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Tan H, Wang W, Yu C, Zhou Y, Lu Z, Yan D. Dissipative particle dynamics simulation study on self-assembly of amphiphilic hyperbranched multiarm copolymers with different degrees of branching. SOFT MATTER 2015; 11:8460-8470. [PMID: 26364696 DOI: 10.1039/c5sm01495f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Hyperbranched multiarm copolymers (HMCs) have shown great potential to be excellent precursors in self-assembly to form various supramolecular structures in all scales and dimensions in solution. However, theoretical studies on the self-assembly of HMCs, especially the self-assembly dynamics and mechanisms, have been greatly lagging behind the experimental progress. Herein, we investigate the effect of degree of branching (DB) on the self-assembly structures of HMCs by dissipative particle dynamics (DPD) simulation. Our simulation results demonstrate that the self-assembly morphologies of HMCs can be changed from spherical micelles, wormlike micelles, to vesicles with the increase of DBs, which are qualitatively consistent with the experimental observations. In addition, both the self-assembly mechanisms and the dynamic processes for the formation of these three aggregates have been systematically disclosed through the simulations. These self-assembly details are difficult to be shown by experiments and are very useful to fully understand the self-assembly behaviors of HMCs.
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Affiliation(s)
- 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.
| | - Wei Wang
- Institute of Theoretical Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130021, P. R. China.
| | - 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.
| | - 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.
| | - Zhongyuan Lu
- Institute of Theoretical Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130021, 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.
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24
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Moreno N, Nunes SP, Peinemann KV, Calo VM. Topology and Shape Control for Assemblies of Block Copolymer Blends in Solution. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01891] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Nicolas Moreno
- Biological and Environmental Science and Engineering Division, ‡Center for Numerical Porous Media, §Advanced Membranes and Porous Material Center, and ∥Earth Science & Engineering and Applied Mathematics & Computational Science, King Abdullah University of Science and Technology, Thuwal, Makkah, Saudi Arabia 23955-6900
| | - Suzana P. Nunes
- Biological and Environmental Science and Engineering Division, ‡Center for Numerical Porous Media, §Advanced Membranes and Porous Material Center, and ∥Earth Science & Engineering and Applied Mathematics & Computational Science, King Abdullah University of Science and Technology, Thuwal, Makkah, Saudi Arabia 23955-6900
| | - Klaus-Viktor Peinemann
- Biological and Environmental Science and Engineering Division, ‡Center for Numerical Porous Media, §Advanced Membranes and Porous Material Center, and ∥Earth Science & Engineering and Applied Mathematics & Computational Science, King Abdullah University of Science and Technology, Thuwal, Makkah, Saudi Arabia 23955-6900
| | - Victor M. Calo
- Biological and Environmental Science and Engineering Division, ‡Center for Numerical Porous Media, §Advanced Membranes and Porous Material Center, and ∥Earth Science & Engineering and Applied Mathematics & Computational Science, King Abdullah University of Science and Technology, Thuwal, Makkah, Saudi Arabia 23955-6900
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25
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Developing coarse-grained potentials for the prediction of multi-properties of trans-1,4-polybutadiene melt. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.05.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Xu Y, Wang C, Zhong S, Li W, Lin Z. Self-assembly of miktoarm star-like ABn block copolymers: from wet to dry brushes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:2905-2913. [PMID: 25689323 DOI: 10.1021/acs.langmuir.5b00081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Self-assembly of miktoarm star-like ABn block copolymer in both selective solvent (A- or B-selective) and miscible homopolymer matrix (A or B homopolymer), that is, formation of micelles, was for the first time investigated by theoretical calculations based on self-consistent mean field theory. Interestingly, the calculation revealed that the size of micelles in solvent was smaller than that in homopolymer under the same conditions. In B-selective solvent, with increasing number of B blocks n in miktoarm star-like ABn block copolymer at a fixed volume fraction of A block, the micellar size decreased gradually. In stark contrast, when miktoarm star-like ABn block copolymer dissolved in B homopolymer matrix at molecular weight ratio of B homopolymer to ABn block copolymer fH = 0.30, the overall micellar size decreased nonmonotonically as the number of B blocks n in ABn block copolymer increased. The largest micelle was formed in AB2 (i.e., n = 2). This intriguing finding can be attributed to a wet-to-dry brush transition that occurred from n = 1 to n = 2 in the micellization of miktoarm star-like ABn block copolymer. Moreover, the micellization behaviors of miktoarm star-like ABn block copolymer in A-selective solvent and A homopolymer matrix were also explored, where the overall micellar size in both scenarios was found to decrease monotonically as n in ABn block copolymer increased. These self-assembled nanostructures composed of miktoarm star-like ABn block copolymers may promise a wide range of applications in size-dependent drug delivery and bionanotechnology.
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Affiliation(s)
- Yuci Xu
- Department of Polymer Science and Engineering, Faculty of Materials Science and Chemical Engineering, Key Laboratory of Specialty Polymers, Ningbo University , Ningbo, Zhejiang 315211, China
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27
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Deng Q, Li H, Cao X, Yang Y, Song X, Li Y. Synergistic mechanism between laurel alkanolamide and hydrophobically associating polyacrylamide in solutions with high salinity. RSC Adv 2015. [DOI: 10.1039/c4ra14884c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The hydrophobic interaction between laurel alkanolamide micelles and hydrophobically associating polyacrylamide enhances the formation of network structure and the viscosity of the mixed solution increases in a large electrolyte concentration range.
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Affiliation(s)
- Quanhua Deng
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry
- Shandong University
- Jinan 250100
- P.R. China
| | - Haiping Li
- National Engineering Technology Research Center for Colloidal Materials
- Shandong University
- Jinan 250100
- P.R. China
| | - Xulong Cao
- Geological Scientific Research Institute
- Shengli Oilfield
- Dongying 257015
- P.R. China
| | - Yong Yang
- Geological Scientific Research Institute
- Shengli Oilfield
- Dongying 257015
- P.R. China
| | - Xinwang Song
- Geological Scientific Research Institute
- Shengli Oilfield
- Dongying 257015
- P.R. China
| | - Ying Li
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry
- Shandong University
- Jinan 250100
- P.R. China
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28
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Xu X, Ji Y, Du C, Hou T, Li Y. The prediction of the morphology and PCE of small molecular organic solar cells. RSC Adv 2015. [DOI: 10.1039/c5ra12318f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The predicted morphology, domain size, PCE (power conversion efficiency) of Small Molecular Organic Solar Cells.
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Affiliation(s)
- Xiaojuan Xu
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Chunmiao Du
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Tingjun Hou
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
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29
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Mei L, Han R, Fu Y, Liu Y. Solvent selection for polyacrylonitrile using molecular dynamic simulation and the effect of process parameters of magnetic-field-assisted electrospinning on fiber alignment. HIGH PERFORM POLYM 2014. [DOI: 10.1177/0954008314555244] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The solubility parameters of polyacrylonitrile (PAN) and of three different solvents, N, N-dimethylformamide (DMF), N, N-dimethylacetamide, and N-methyl-2-pyrrolidone, as also Flory–Huggins parameters between PAN and these solvents were first calculated, using molecular dynamics simulation. From the simulation results, DMF was chosen as the solvent for PAN in magnetic-field-assisted electrospinning (MFAES). Then, a systematic investigation of the processing parameters, including their interaction and modeling of the degree of fiber alignment, was conducted using a three factor, three-level Box–Behnken design, combined with response surface methodology and quadratic programming. Three independent variables (solution concentration [ X1], ranging from 12% to 14%; voltage [ X2], ranging from 12 to 16 kV; and the distance between two magnets [ X3], ranging from 2 to 3 cm) were consecutively coded as x1, x2 and x3 at three levels (−1, 0, and 1). The degree of PAN fiber alignment ( Y) was maximized, based on 17 different MFAES experimental data, and a second-order polynomial regression equation was obtained to predict the corresponding results. The significance of independent variables and their interactions was tested by the analysis of variance with 95% confidence limits ( a = 0.05). The standard effects of the independent variables and their interactions on the response were also investigated by preparing a Pie chart. The optimum values of the selected variables were obtained by solving the quadratic regression model and analyzing the response surface contour plots. The optimum coded values of the three test variables were computed as x1 = 0.35, x2 = −0.52, and x3 = 0.15. The experimental conditions at this global point were determined to be X1 = 13.35%, X2 = 13.03 kV, and X3 = 2.58 cm, and the corresponding Y was found to be about 96%.
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Affiliation(s)
- Linyu Mei
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan, China
- School of Mechanical and Power Engineering, North University of China, Taiyuan, China
| | - Rui Han
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan, China
- College of Materials and Science Engineering, North University of China, Taiyuan, China
| | - Yizheng Fu
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan, China
- College of Materials and Science Engineering, North University of China, Taiyuan, China
| | - Yaqing Liu
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan, China
- College of Materials and Science Engineering, North University of China, Taiyuan, China
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Wang Y, Li B, Jin H, Zhou Y, Lu Z, Yan D. Dissipative Particle Dynamics Simulation Study on Vesicles Self-Assembled from Amphiphilic Hyperbranched Multiarm Copolymers. Chem Asian J 2014; 9:2281-8. [DOI: 10.1002/asia.201402146] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/27/2014] [Indexed: 11/06/2022]
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31
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Tang L, Tjong V, Li N, Yingling YG, Chilkoti A, Zauscher S. Enzymatic polymerization of high molecular weight DNA amphiphiles that self-assemble into star-like micelles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:3050-3054. [PMID: 24497034 DOI: 10.1002/adma.201306049] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 12/29/2013] [Indexed: 06/03/2023]
Abstract
High molecular weight ssDNA amphiphiles are synthesized by enzymatic polymerization. These highly asymmetric diblock DNA copolymers self-assemble into "hairy", star-like micelles, shown in the AFM image and the DPD snapshot.
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Affiliation(s)
- Lei Tang
- Dept. of Mechanical Engineering and Materials Science, Duke University, 144 Hudson Hall Box 90300, Durham, North Carolina, 27708, USA
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32
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Evaporation-induced morphology pattern of triblock copolymer A5B10C5 in thin film: A multibody DPD simulation study. Chem Res Chin Univ 2013. [DOI: 10.1007/s40242-013-3260-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Li M, Gu YZ, Li YX, Liu H, Zhang ZG. Competition of diffusion and crosslink on the interphase region in carbon fiber/epoxy analyzed by multiscale simulations. J Appl Polym Sci 2013. [DOI: 10.1002/app.40032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Min Li
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering; Beihang University; Beijing 100191 China
| | - Yi-Zhuo Gu
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering; Beihang University; Beijing 100191 China
| | - Yan-Xia Li
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering; Beihang University; Beijing 100191 China
| | - Hong Liu
- Institute of Theoretical Chemistry, State Key Laboratory of Theoretical and Computational Chemistry; Jilin University; Changchun 130023 China
| | - Zuo-Guang Zhang
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering; Beihang University; Beijing 100191 China
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34
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Guo Y, Ma Z, Ding Z, Li RKY. Kinetics of laterally nanostructured vesicle formation by self-assembly of miktoarm star terpolymers in aqueous solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:12811-12817. [PMID: 24041399 DOI: 10.1021/la4023807] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Dissipative particle dynamics (DPD) simulation was used to study the self-assembly of laterally nanostructured vesicles in aqueous solution from μ-[poly(ethylethylene)]-[poly(ethylene oxide)][poly(perfluoropropylene oxide)] (μ-EOF) star terpolymers. The simulated results show that the laterally nanostructured vesicle forms when the length of the hydrophilic O blocks are relatively short. In the lateral nanostructure, the hexagonally packed domains formed by the hydrophobic F blocks are immersed in a two-dimensional hydrophobic E block matrix. The formation conditions and microstructure of the vesicles in our simulation agree with the reported experimental results from the literature. The complicated formation pathway of laterally nanostructured vesicles follows three stages: (1) combination of spherical and short cylindrical raspberry-like micelles into an intermediate polygonal sheet; (2) the intermediate polygonal sheet grows to form a larger polygonal sheet with a tail; (3) the large polygonal sheet with a tail eventually folds and forms a vesicle.
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Affiliation(s)
- Yingying Guo
- Department of Physics, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
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35
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36
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Interfacial properties and phase transitions in ternary symmetric homopolymer–copolymer blends: A dissipative particle dynamics study. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.02.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ju SP, Wang YC, Huang GJ, Chang JW. Miscibility of graphene and poly(methyl methacrylate) (PMMA): molecular dynamics and dissipative particle dynamics simulations. RSC Adv 2013. [DOI: 10.1039/c3ra22879g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Moeinzadeh S, Jabbari E. Mesoscale Simulation of the Effect of a Lactide Segment on the Nanostructure of Star Poly(ethylene glycol-co-lactide)-Acrylate Macromonomers in Aqueous Solution. J Phys Chem B 2012; 116:1536-43. [DOI: 10.1021/jp211056p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Seyedsina Moeinzadeh
- Biomimetic Materials and Tissue Engineering
Laboratories,
Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering
Laboratories,
Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
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Affiliation(s)
- Adam O. Moughton
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Marc A. Hillmyer
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Timothy P. Lodge
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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Liu H, Li M, Lu ZY, Zhang ZG, Sun CC, Cui T. Multiscale Simulation Study on the Curing Reaction and the Network Structure in a Typical Epoxy System. Macromolecules 2011. [DOI: 10.1021/ma201390k] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Hong Liu
- Institute of Theoretical Chemistry, State Key Laboratory of Theoretical and Computational Chemistry, Jilin University, Changchun 130023, China
| | - Min Li
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100083, China
| | - Zhong-Yuan Lu
- Institute of Theoretical Chemistry, State Key Laboratory of Theoretical and Computational Chemistry, Jilin University, Changchun 130023, China
| | - Zuo-Guang Zhang
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100083, China
| | - Chia-Chung Sun
- Institute of Theoretical Chemistry, State Key Laboratory of Theoretical and Computational Chemistry, Jilin University, Changchun 130023, China
| | - Tian Cui
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
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LI Z, JIA X, ZHANG J, SUN Z, LU Z. DESIGNING NANO-STRUCTURES OF BLOCK COPOLYMERS <I>VIA</I> COMPUTER SIMULATION. ACTA POLYM SIN 2011. [DOI: 10.3724/sp.j.1105.2011.11102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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BAI Z, XIA Y, SHI S, GUO H. DISSIPATIVE PARTICLE DYNAMICS SIMULATION STUDY ON THE PHASE BEHAVIOR OF PE/PEO/PE-PEO SYMMETRIC TERNARY BLENDS. ACTA POLYM SIN 2011. [DOI: 10.3724/sp.j.1105.2011.10128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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