1
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Sun D. Hierarchical double periodic structures formed by the linear multiblock copolymers A(BA)2C and (BA)3C with compositions of the A, B and C blocks in ratio 1:1:2. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-023-03450-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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2
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Dou Y, Tian N, Ning Z, Jiang N, Gan Z. Facile Method for the Synthesis of PCL- b-PA6- b-PCL Using Amino-Terminated PA6 as a Macroinitiator and Its Characterization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Yuanyuan Dou
- State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomaterials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing100029, China
| | - Nan Tian
- State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomaterials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing100029, China
| | - Zhenbo Ning
- State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomaterials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing100029, China
| | - Ni Jiang
- State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomaterials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing100029, China
| | - Zhihua Gan
- State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomaterials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing100029, China
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3
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Xu Z, Dong Q, Zhang L, Li W. Enhanced dielectric permittivity of hierarchically double-gyroid nanocomposites via macromolecular engineering of block copolymers. NANOSCALE 2022; 14:15275-15280. [PMID: 36222383 DOI: 10.1039/d2nr04516h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
It is a challenging task to realize the periodically bicontinuous gyroid nanostructures of flexible nanocomposites with high loading of functionalized nanoparticles, which could exhibit high dielectric permittivity for energy storage and electronic devices. Herein, with the aid of the concept of macromolecular engineering, we propose novel nanocomposites, composed of A'(A''B)n miktoarm star copolymers and nanoparticles, to obtain a double-gyroid structure through self-consistent field theory coupled with density functional theory. By tailoring the architecture of this copolymer, a large window of the double-gyroid phase extending to a high loading concentration of nanoparticles is achieved, leading to a hierarchical structure of a percolation network of nanoparticles within the gyroid channels. Furthermore, the finite difference quasielectrostatic method is integrated to reveal an enhanced dielectric permittivity of the structured nanocomposites by increasing the loading concentration of nanoparticles. The simultaneous achievement of an ordered double-gyroid phase and high loading nanoparticles represents a crucial step toward the realization of fully three-dimensional network-like metamaterials via a rational molecular design of nanocomposites.
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Affiliation(s)
- Zhanwen Xu
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200438, China.
| | - Qingshu Dong
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200438, China.
| | - Liangshun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200438, China.
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4
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Modeling the Phase Equilibria of Associating Polymers in Porous Media with Respect to Chromatographic Applications. Polymers (Basel) 2022; 14:polym14153182. [PMID: 35956697 PMCID: PMC9370872 DOI: 10.3390/polym14153182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/31/2022] [Accepted: 07/31/2022] [Indexed: 11/28/2022] Open
Abstract
Associating copolymers self-assemble during their passage through a liquid chromatography (LC) column, and the elution differs from that of common non-associating polymers. This computational study aims at elucidating the mechanism of their unique and intricate chromatographic behavior. We focused on amphiphilic diblock copolymers in selective solvents, performed the Monte Carlo (MC) simulations of their partitioning between a bulk solvent (mobile phase) and a cylindrical pore (stationary phase), and investigated the concentration dependences of the partition coefficient and of other functions describing the phase behavior. The observed abruptly changing concentration dependences of the effective partition coefficient demonstrate the significant impact of the association of copolymers with their partitioning between the two phases. The performed simulations reveal the intricate interplay of the entropy-driven and the enthalpy-driven processes, elucidate at the molecular level how the self-assembly affects the chromatographic behavior, and provide useful hints for the analysis of experimental elution curves of associating polymers.
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5
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Gazzotti S, Adolfsson KH, Hakkarainen M, Farina H, Silvani A, Ortenzi MA. DOX mediated synthesis of PLA-co-PS graft copolymers with matrix-driven self-assembly in PLA-based blends. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111157] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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6
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Xu Z, Li W. Control the self‐assembly of block copolymers by tailoring the packing frustration. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100780] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhanwen Xu
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University Shanghai 200433 China
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University Shanghai 200433 China
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7
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Multiblock Elastomers TPEAA and TPEEA: Physical Structure and Properties. MATERIALS 2021; 14:ma14247720. [PMID: 34947313 PMCID: PMC8709207 DOI: 10.3390/ma14247720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/12/2021] [Accepted: 12/11/2021] [Indexed: 11/26/2022]
Abstract
A three series of terpolymers composed of the blocks PTMO (MPTMO = 1000 g/mol) or DLAol (MDLAol = 540 g/mol), PA12 (MPA12 = 2000 g/mol) and xGT (DPxGT = 2) with various chemical compositions of ester block were obtained. The series differ in the chemical structure of the flexible block and weight content of the soft phase. The effect of the number of carbons dividing the terephthalate groups on the synthesis, structure and properties of these elastomers has been investigated. To confirm assumed chemical structure Carbon-13 (13C NMR) and Proton (1H NMR) Nuclear Magnetic Resonance and Fourier-transform Infrared Spectroscopy (FT-IR) were used. The influence of chemical compositions of ester block on the thermal properties and the phase separation of obtained systems were defined by Differential Scanning Calorimetry (DSC), Dynamic Mechanical Thermal Analysis (DMTA) and Wide Angle X-ray Scattering (WAXS). The mechanical and elastic properties were evaluated.
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8
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Zhang M, Zhang S, Zhang K, Zhu Z, Miao Y, Qiu Y, Zhang P, Zhao X. Self-assembly of polymer-doxorubicin conjugates to form polyprodrug micelles for pH/enzyme dual-responsive drug delivery. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126669] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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9
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Jin X, Wu F, Lin J, Cai C, Wang L, Chen J, Gao L. Programmable Morphology Evolution of Rod-Coil-Rod Block Copolymer Assemblies Induced by Variation of Chain Ordering. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3148-3157. [PMID: 33661006 DOI: 10.1021/acs.langmuir.0c03644] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Morphology transition of block copolymer assemblies in response to external stimuli has attracted considerable attention. However, our knowledge about the mechanism of such a transition is still limited, especially for rod-coil block copolymers. Here, we report a programmable morphology evolution of assemblies induced by variation of chain ordering for rod-coil-rod triblock copolymers. A sequence of morphology transition from ellipsoids to disks, bowls, and vesicles is observed by increasing the solution temperature. At high temperatures, the mobility of the rod chain increases and the rigidity of the rod chain decreases. This gives rise to an ellipsoid-to-vesicle morphology transition. Dissipative particle dynamics theoretical simulations were performed to reveal the mechanism of this morphology transition process. It was found that the increase of rod chain mobility and the decrease of rod chain rigidity induce a decrease of chain ordering of rod blocks as temperature increases, which results in an ellipsoid-to-vesicle morphology transition. The gained information can guide the construction of nanoassemblies based on the rod-coil block copolymers.
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Affiliation(s)
- Xiao Jin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Fangsheng Wu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jianding Chen
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liang Gao
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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10
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Cui Z, Huang Y. Exploration of the Structure–Property Relationship of Polymer‐Based Composites by Monte‐Carlo‐Coupled Viscoelastic Lattice Spring Model. ADVANCED THEORY AND SIMULATIONS 2021. [DOI: 10.1002/adts.202000202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhiwei Cui
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Yongmin Huang
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
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11
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Larder RR, Bennett TM, Blankenship LS, Fernandes JA, Husband BK, Atkinson RL, Derry MJ, Toolan DTW, Centurion HA, Topham PD, Gonçalves RV, Taresco V, Howdle SM. Porous hollow TiO2 microparticles for photocatalysis: exploiting novel ABC triblock terpolymer templates synthesised in supercritical CO2. Polym Chem 2021. [DOI: 10.1039/d1py00334h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis of phase separated PMMA-b-PS-b-P4VP microparticles via RAFT-mediated dispersion polymerisation in scCO2 and their use as a structure-directing agent for the fabrication of TiO2 microparticles for photocatalysis.
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12
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Hong W, Lin J, Tian X, Wang L. Viscoelasticity of Nanosheet-Filled Polymer Composites: Three Regimes in the Enhancement of Moduli. J Phys Chem B 2020; 124:6437-6447. [PMID: 32609516 DOI: 10.1021/acs.jpcb.0c04235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We employed nonequilibrium molecular dynamics simulations to elucidate the viscoelastic properties of nanosheet (NS)-filled polymer composites. The effects of NS loadings and NS-polymer interaction on viscoelasticity were examined. The simulation results show that the NS-filled polymer composites exhibit an enhanced storage modulus and loss modulus as the NSs are loaded. There are three regimes of the enhanced process based on the NS loadings. At lower NS loadings, the motion of polymers slows down owing to the interaction between NSs and polymers, and the polymer chains generally follow the Rouse dynamics. As the NS loadings increase, the polymer chains are confined between NSs, leading to a substantial increment in dynamic moduli. At higher NS loadings, a transient network is formed, which strengthens the dynamic moduli further. In addition, the attractive NS-polymer interaction can improve the dispersion of NSs and increase the storage and loss moduli. The present work could provide essential information for designing high-performance hybrid polymeric materials.
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Affiliation(s)
- Wei Hong
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaohui Tian
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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13
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Gao G, Zhang S, Wang L, Lin J, Qi H, Zhu J, Du L, Chu M. Developing Highly Tough, Heat-Resistant Blend Thermosets Based on Silicon-Containing Arylacetylene: A Material Genome Approach. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27587-27597. [PMID: 32459954 DOI: 10.1021/acsami.0c06292] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Silicon-containing arylacetylene (PSA) resins exhibit excellent heat resistance, yet their brittleness limits the applications. We proposed using acetylene-terminated polyimides (ATPI) as an additive to enhance the toughness of the PSA resins and maintain excellent heat resistance. A material genome approach (MGA) was first established for designing and screening the acetylene-terminated polyimides, and a polyimide named ATPI was filtered out by using this MGA. The ATPI was synthesized and blended with PSA resins to improve the toughness of the thermosets. Influences of the added ATPI contents and prepolymerization temperature on the properties were examined. The result shows that the blend resin can resist high temperature and bear excellent mechanical properties. The molecular dynamics simulations were carried out to understand the mechanism behind the improvement of toughness. The present work provides a method for the rapid design and screening of high-performance polymeric materials.
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Affiliation(s)
- Guanru Gao
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Songqi Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Huimin Qi
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Junli Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Lei Du
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ming Chu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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14
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Li Q, Wang L, Lin J, Xu Z. Distinctive Morphology Modifiers for Polymer Blends: Roles of Asymmetric Janus Nanoparticles during Phase Separation. J Phys Chem B 2020; 124:4619-4630. [PMID: 32379453 DOI: 10.1021/acs.jpcb.0c02165] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Janus nanoparticles (JPs), which are anisotropic nanoparticles with multiple constituting parts, have been recognized as superior compatibilizers for polymer-blend-based nanocomposites. However, so far, most studies focused on the effects of symmetric JPs on the phase separation dynamics of polymer blends, while the roles of asymmetric JPs during phase separation remain unclear. In this work, the phase separation dynamics of symmetric blends compatibilized by JPs with various compositions was studied by using dissipative particle dynamics (DPD) simulations. It was found that the blends compatibilized by asymmetric JPs tend to undergo morphological transitions from bicontinuous networks to droplets-in-matrix structures at the late stage of phase separation, which is due to the influence of asymmetric JPs on the energetically favored curvature of the interfaces between polymer domains. Such a mechanism is absent for symmetric JPs and other compatibilizers (e.g., triblock copolymers and homogeneous particles) because they lack the unique combination of chemical asymmetry with the particulate nature like the asymmetric JPs. Moreover, it was observed that the asymmetric JPs can stably localize at the interfaces and act as efficient compatibilizers only when the fraction of the minor constituent part exceeds a critical value. These findings not only shed light upon the roles of asymmetric JPs as compatibilizers but also indicate a promising strategy for designing polymer-blend-based nanocomposites with tailor-made structures.
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Affiliation(s)
- Qing Li
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhanwen Xu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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15
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Huang Q, Xu Z, Cai C, Lin J. Micelles with a Loose Core Self‐Assembled from Coil‐
g
‐Rod Graft Copolymers Displaying High Drug Loading Capacity. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qijing Huang
- Shanghai Key Laboratory of Advanced Polymeric MaterialsKey Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Zhanwen Xu
- Shanghai Key Laboratory of Advanced Polymeric MaterialsKey Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric MaterialsKey Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric MaterialsKey Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
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16
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Liu Z, Xu Z, Wang L, Lin J. Distinctive Optical Properties of Hierarchically Ordered Nanostructures Self-Assembled from Multiblock Copolymer/Nanoparticle Mixtures. Macromol Rapid Commun 2020; 41:e2000131. [PMID: 32329165 DOI: 10.1002/marc.202000131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 04/05/2020] [Indexed: 11/06/2022]
Abstract
Hybrid materials with hierarchical nanostructures are of great interest for their advanced functions. However, the effect of the formation of hierarchical nanostructures on properties is not well understood. Here, through combining dissipative particle dynamics simulation and the finite-difference time-domain method, the optical properties of hierarchically ordered nanostructures formed by mixtures of A(BC)n multiblock copolymers and nanoparticles (NPs) are investigated. A series of hierarchically ordered nanostructures with multiple small-length-scale hybrid domains are obtained from the self-assembly of A(BC)n /NP. An increase and blueshift in optical absorption are observed when the number of small-length-scale hybrid domains increases. The small-length-scale hybrid domains enhance light scattering, which consequently contributes to the improved optical performance. These findings can yield guidelines for designing hierarchically ordered functional nanocomposites with light-harvesting characteristics.
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Affiliation(s)
- Zaojin Liu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhanwen Xu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
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17
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Tang Z, Li D, Lin J, Zhang L, Cai C, Yao Y, Yang C, Tian X. Self-assembly of rod-coil block copolymers on a substrate into micrometer-scale ordered stripe nanopatterns. Polym Chem 2020. [DOI: 10.1039/d0py01404d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Micrometer-scale ordered stripe nanopatterns are readily constructed through an adsorption-assembly of rod-coil block copolymers on the substrate.
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Affiliation(s)
- Zhengmin Tang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Da Li
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Liangshun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Yuan Yao
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Chunming Yang
- Shanghai Synchrotron Radiation Facility
- Shanghai Advanced Research Institute
- Chinese Academy of Sciences
- Shanghai 201204
- China
| | - Xiaohui Tian
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- School of Materials Science and Engineering
- East China University of Science and Technology
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18
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Gao H, Ma X, Lin J, Wang L, Cai C, Zhang L, Tian X. Synthesis of Nanowires via Temperature-Induced Supramolecular Step-Growth Polymerization. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01358] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hongbing Gao
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaodong Ma
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liangshun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaohui Tian
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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19
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Xue J, Guan Z, Zhu X, Lin J, Cai C, Jin X, Li Y, Ye Z, Zhang W, Jiang X. Cellular internalization of polypeptide-based nanoparticles: effects of size, shape and surface morphology. Biomater Sci 2019; 6:3251-3261. [PMID: 30335094 DOI: 10.1039/c8bm01163j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Nanoparticles (NPs) can be taken up by cells; however, the effects of the structural characteristics of NPs on their cellular internalization have not been well explored. In this work, cellular internalization performances of various NPs including rods with helical surface (helical rods), spheres with stripe-pattern surface (striped spheres), and spheres with smooth surface (smooth spheres) were investigated by a combination of experiments and theoretical simulations. This study focuses on the effects of the size, shape, and surface morphology on their cellular internalization behaviors. These NPs were self-assembled from mixtures of fluorescein isothiocyanate (FITC)-labelled poly(γ-benzyl-l-glutamate)-block-poly(ethylene glycol) (PBLG(FITC)-b-PEG) block copolymers and PBLG or polystyrene (PS) homopolymers. It was found that the NPs possessing smaller size, rod-like shape, and helical/striped surface morphology exhibit higher cellular internalization efficiency. Such differences in the internalization efficiency for the NPs can be attributed to the differences in both their surface areas and internalization pathways. This study could not only guide the design of nanocarriers with enhanced cellular internalization efficiency, but also deepen our understanding of the internalization behavior of natural NPs with similar structures (e.g., virus).
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Affiliation(s)
- Jiaxiao Xue
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
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20
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Yue B, Jin X, Zhao P, Zhu M, Zhu L. Directed Self-Assembly of Templatable Block Copolymers by Easily Accessible Magnetic Control. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804572. [PMID: 30673173 DOI: 10.1002/smll.201804572] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Magnetic control has been a prosperous and powerful contactless approach in arraying materials into high-order nanostructures. However, it is tremendously difficult to control organic polymers in this way on account of the weak magnetic response. The preparation of block copolymers (BCPs) with high magnetostatic energy is reported here, relying on an effective electrostatic coupling between paramagnetic ions and polymer side chains. As a result, the BCPs undergo a magnetically directed self-assembly to form microphase-segregated nanostructures with long-range order. It is emphasized that such a precisely controlled alignment of the BCPs is performed upon a single commercial magnet with low-intensity field (0.35 Tesla). This strategy is profoundly easy-to-handle in contrast to routine electromagnetic methods with high-intensity field (5-10 Tesla). More significantly, the paramagnetic metal component in the BCP samples can be smartly removed, providing a template effect with a preservation of the directed self-assembled nanofeatures for patterning follow-up functionalized species through the original binding site.
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Affiliation(s)
- Bingbing Yue
- Key Laboratory of Molecular Engineering of Polymer Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Xin Jin
- Shanghai Synchrotron Radiation Facility, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Pei Zhao
- Key Laboratory of Molecular Engineering of Polymer Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Mingjie Zhu
- Key Laboratory of Molecular Engineering of Polymer Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Liangliang Zhu
- Key Laboratory of Molecular Engineering of Polymer Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
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21
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Zhao F, Dong A, Deng L, Guo R, Zhang J. Morphology control and property design of boronate dynamic nanostructures. Polym Chem 2019. [DOI: 10.1039/c9py00217k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The morphogenesis of boronate dynamic nanostructures (BDNs) with different building blocks was systematically investigated to elucidate their design rules.
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Affiliation(s)
- Fuli Zhao
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Anjie Dong
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Liandong Deng
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Ruiwei Guo
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Jianhua Zhang
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
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22
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Li Q, Wang L, Lin J, Zhang L. Distinctive phase separation dynamics of polymer blends: roles of Janus nanoparticles. Phys Chem Chem Phys 2019; 21:2651-2658. [DOI: 10.1039/c8cp06431h] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The present work demonstrates that Janus nanoparticles uniquely promote the phase separation of polymer blends at the early stage of spinodal decomposition, but impede it at the late stage.
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Affiliation(s)
- Qing Li
- Shanghai Key Laboratory of Advanced Polymeric Materials
- State Key Laboratory of Bioreactor Engineering
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- State Key Laboratory of Bioreactor Engineering
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials
- State Key Laboratory of Bioreactor Engineering
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Liangshun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- State Key Laboratory of Bioreactor Engineering
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
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23
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Phase diagrams, mechanisms and unique characteristics of alternating-structured polymer self-assembly via simulations. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9360-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Xu Z, Lin J, Zhang L, Wang L, Wang G, Tian X, Jiang T. Distinct Photovoltaic Performance of Hierarchical Nanostructures Self-Assembled from Multiblock Copolymers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:22552-22561. [PMID: 29900737 DOI: 10.1021/acsami.8b04692] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We applied a multiscale approach coupling dissipative particle dynamics method with a drift-diffusion model to elucidate the photovoltaic properties of multiblock copolymers consisting of alternating electron donor and acceptor blocks. A series of hierarchical lamellae-in-lamellar structures were obtained from the self-assembly of the multiblock copolymers. A distinct improvement in photovoltaic performance upon the morphology transformation from lamella to lamellae-in-lamella was observed. The hierarchical lamellae-in-lamellar structures significantly enhanced exciton dissociation and charge carrier transport, which consequently contributed to the improved photovoltaic performance. On the basis of our theoretical calculations, the hierarchical nanostructures can achieve much enhanced energy conversion efficiencies, improved by around 25% compared with that of general ones, through structure modulation on the number and size of the small-length-scale domains via the molecular design of multiblock copolymers. Our findings are supported by recent experimental evidence and provide guidance for designing advanced photovoltaic materials with hierarchical structures.
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Affiliation(s)
- Zhanwen Xu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Liangshun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Gengchao Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Xiaohui Tian
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Tao Jiang
- Beijing Institute of Nanoenergy and Nanosystems , Chinese Academy of Sciences , Beijing 100083 , China
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25
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Barber DM, Crosby AJ, Emrick T. Mesoscale Block Copolymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706118. [PMID: 29380431 DOI: 10.1002/adma.201706118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 12/08/2017] [Indexed: 06/07/2023]
Abstract
Materials composed of well-defined mesoscale building blocks are ubiquitous in nature, with noted ability to assemble into hierarchical structures possessing exceptional physical and mechanical properties. Fabrication of similar synthetic mesoscale structures will offer opportunities for precise conformational tuning toward advantageous bulk properties, such as increased toughness or elastic modulus. This requires new materials designs to be discovered to impart such structural control. Here, the preparation of mesoscale polymers is achieved by solution fabrication of functional polymers containing photoinduced chemical triggers. Subsequent photopatterning affords mesoscale block copolymers composed of distinct segments of alternating chemical composition. When dispersed in appropriate solvents, selected segments form helices to generate architectures resembling block copolymers, but on an optically observable size scale. This approach provides a platform for producing mesoscale geometries with structural control and potential for driving materials assembly comparable to examples found in nature.
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Affiliation(s)
- Dylan M Barber
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Amherst, MA, 01003-9263, USA
| | - Alfred J Crosby
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Amherst, MA, 01003-9263, USA
| | - Todd Emrick
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Amherst, MA, 01003-9263, USA
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26
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González-Pizarro DA, Soto-Figueroa C, Rodríguez-Hidalgo MDR, Vicente L. Mesoscopic study of the ternary phase diagram of the PS-PB-PtBMA triblock copolymer: modification of the phase structure by the composition effect. SOFT MATTER 2018; 14:508-520. [PMID: 29265165 DOI: 10.1039/c7sm02132a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We explored in detail the ordered nanostructures and the ternary phase diagram of the polystyrene-polybutadiene-poly(tert-butyl methacrylate) (PS-PB-PtBMA) triblock copolymer via dissipative particle dynamics (DPD) simulations and coarse-grained models. The mesoscopic simulations show that the PS-PB-PtBMA copolymer in the bulk state can generate eight equilibrium phase regions with well-defined morphologies such as core-shell variations of spheres, cylinders, perforated layers, lamellar, gyroid, as well as cylinder-in-lamella, spheres-in-lamella, and cylinders in hexagonal lattice. The ordered phases exhibit high dependence on the chemical nature and volume fraction, thus portraying specific composition regions with high thermodynamic stability over a ternary phase diagram. The ternary phase diagram, including all equilibrium and metastable nanostructures detected, is described, and analysed in this work in detail. Finally, our dynamic simulation outcomes agree with experimental results. Our aim is to contribute to the understanding of the relationship between block volume fractions and bulk morphologies in ternary polymer systems.
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Affiliation(s)
- David Alfredo González-Pizarro
- Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Circuito Universitario s/n, Nuevo Campus Universitario, C.P. 31125, Chihuahua, Mexico
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27
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Wang J, Li J, Yao Q, Sun X, Yan Y, Zhang J. One-pot production of porous assemblies by PISA of star architecture copolymers: a simulation study. Phys Chem Chem Phys 2018; 20:10069-10076. [DOI: 10.1039/c8cp00480c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Porous vesicles can be produced in one-pot by the PISA of star architecture copolymers.
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Affiliation(s)
- Junfeng Wang
- College of Science
- China University of Petroleum (East China)
- Qingdao
- People's Republic of China
| | - Jiawei Li
- College of Science
- China University of Petroleum (East China)
- Qingdao
- People's Republic of China
| | - Qiang Yao
- College of Science
- China University of Petroleum (East China)
- Qingdao
- People's Republic of China
| | - Xiaoli Sun
- College of Science
- China University of Petroleum (East China)
- Qingdao
- People's Republic of China
| | - Youguo Yan
- College of Science
- China University of Petroleum (East China)
- Qingdao
- People's Republic of China
| | - Jun Zhang
- College of Science
- China University of Petroleum (East China)
- Qingdao
- People's Republic of China
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28
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Yang C, Ma X, Lin J, Wang L, Lu Y, Zhang L, Cai C, Gao L. Supramolecular “Step Polymerization” of Preassembled Micelles: A Study of “Polymerization” Kinetics. Macromol Rapid Commun 2017; 39. [DOI: 10.1002/marc.201700701] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Indexed: 01/16/2023]
Affiliation(s)
- Chaoying Yang
- Shanghai Key Laboratory of Advanced Polymeric Materials; State Key Laboratory of Bioreactor Engineering; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Xiaodong Ma
- Shanghai Key Laboratory of Advanced Polymeric Materials; State Key Laboratory of Bioreactor Engineering; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials; State Key Laboratory of Bioreactor Engineering; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials; State Key Laboratory of Bioreactor Engineering; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Yingqing Lu
- Shanghai Key Laboratory of Advanced Polymeric Materials; State Key Laboratory of Bioreactor Engineering; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Liangshun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials; State Key Laboratory of Bioreactor Engineering; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials; State Key Laboratory of Bioreactor Engineering; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Liang Gao
- Shanghai Key Laboratory of Advanced Polymeric Materials; State Key Laboratory of Bioreactor Engineering; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
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29
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Zhang Q, Lin J, Wang L, Xu Z. Theoretical modeling and simulations of self-assembly of copolymers in solution. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.04.003] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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30
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Lin TP, Chang AB, Luo SX, Chen HY, Lee B, Grubbs RH. Effects of Grafting Density on Block Polymer Self-Assembly: From Linear to Bottlebrush. ACS NANO 2017; 11:11632-11641. [PMID: 29072906 DOI: 10.1021/acsnano.7b06664] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Grafting density is an important structural parameter that exerts significant influences over the physical properties of architecturally complex polymers. In this report, the physical consequences of varying the grafting density (z) were studied in the context of block polymer self-assembly. Well-defined block polymers spanning the linear, comb, and bottlebrush regimes (0 ≤ z ≤ 1) were prepared via grafting-through ring-opening-metathesis polymerization. ω-Norbornenyl poly(d,l-lactide) and polystyrene macromonomers were copolymerized with discrete comonomers in different feed ratios, enabling precise control over both the grafting density and molecular weight. Small-angle X-ray scattering experiments demonstrate that these graft block polymers self-assemble into long-range-ordered lamellar structures. For 17 series of block polymers with variable z, the scaling of the lamellar period with the total backbone degree of polymerization (d* ∼ Nbbα) was studied. The scaling exponent α monotonically decreases with decreasing z and exhibits an apparent transition at z ≈ 0.2, suggesting significant changes in the chain conformations. Comparison of two block polymer systems, one that is strongly segregated for all z (System I) and one that experiences weak segregation at low z (System II), indicates that the observed trends are primarily caused by the polymer architectures, not segregation effects. A model is proposed in which the characteristic ratio (C∞), a proxy for the backbone stiffness, scales with Nbb as a function of the grafting density: C∞ ∼ Nbbf(z). The scaling behavior disclosed herein provides valuable insights into conformational changes with grafting density, thus introducing opportunities for block polymer and material design.
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Affiliation(s)
- Tzu-Pin Lin
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Alice B Chang
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Shao-Xiong Luo
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Hsiang-Yun Chen
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Byeongdu Lee
- X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Robert H Grubbs
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
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31
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Woloszczuk S, Tuhin MO, Gade SR, Pasquinelli MA, Banaszak M, Spontak RJ. Complex Phase Behavior and Network Characteristics of Midblock-Solvated Triblock Copolymers as Physically Cross-Linked Soft Materials. ACS APPLIED MATERIALS & INTERFACES 2017; 9:39940-39944. [PMID: 29131574 DOI: 10.1021/acsami.7b14298] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In the presence of a midblock-selective solvent, triblock copolymers not only self-organize but also form a molecular network. Thermoplastic elastomer gels constitute examples of such materials and serve as sealants and adhesives, as well as ballistic, microfluidic, and electroactive media. We perform Monte Carlo and dissipative particle dynamics simulations to investigate the phase behavior and network characteristics of these materials. Of particular interest is the existence of a truncated octahedral morphology that resembles the atomic arrangement of various inorganic species. Both simulation approaches quantify the midblock bridges responsible for network development and thus provide a detailed molecular picture of these composition-tunable soft materials.
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Affiliation(s)
- Sebastian Woloszczuk
- Faculty of Physics and ⊥NanoBioMedical Centre, Adam Mickiewicz University , 61-614 Poznan, Poland
- Department of Chemical & Biomolecular Engineering, §Department of Computer Science, ∥Fiber & Polymer Science Program, and #Department of Materials Science & Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Mohammad O Tuhin
- Faculty of Physics and ⊥NanoBioMedical Centre, Adam Mickiewicz University , 61-614 Poznan, Poland
- Department of Chemical & Biomolecular Engineering, §Department of Computer Science, ∥Fiber & Polymer Science Program, and #Department of Materials Science & Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Soumya R Gade
- Faculty of Physics and ⊥NanoBioMedical Centre, Adam Mickiewicz University , 61-614 Poznan, Poland
- Department of Chemical & Biomolecular Engineering, §Department of Computer Science, ∥Fiber & Polymer Science Program, and #Department of Materials Science & Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Melissa A Pasquinelli
- Faculty of Physics and ⊥NanoBioMedical Centre, Adam Mickiewicz University , 61-614 Poznan, Poland
- Department of Chemical & Biomolecular Engineering, §Department of Computer Science, ∥Fiber & Polymer Science Program, and #Department of Materials Science & Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Michal Banaszak
- Faculty of Physics and ⊥NanoBioMedical Centre, Adam Mickiewicz University , 61-614 Poznan, Poland
- Department of Chemical & Biomolecular Engineering, §Department of Computer Science, ∥Fiber & Polymer Science Program, and #Department of Materials Science & Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Richard J Spontak
- Faculty of Physics and ⊥NanoBioMedical Centre, Adam Mickiewicz University , 61-614 Poznan, Poland
- Department of Chemical & Biomolecular Engineering, §Department of Computer Science, ∥Fiber & Polymer Science Program, and #Department of Materials Science & Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States
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32
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Xue J, Guan Z, Lin J, Cai C, Zhang W, Jiang X. Cellular Internalization of Rod-Like Nanoparticles with Various Surface Patterns: Novel Entry Pathway and Controllable Uptake Capacity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1604214. [PMID: 28464447 DOI: 10.1002/smll.201604214] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 03/17/2017] [Indexed: 06/07/2023]
Abstract
The cellular internalization of rod-like nanoparticles (NPs) is investigated in a combined experimental and simulation study. These rod-like nanoparticles with smooth, abacus-like (i.e., beads-on-wires), and helical surface patterns are prepared by the cooperative self-assembly of poly(γ-benzyl-l-glutamate)-block-poly(ethylene glycol) (PBLG-b-PEG) block copolymers and PBLG homopolymers. All three types of NPs can be internalized via endocytosis. Helical NPs exhibit the best endocytic efficacy, followed by smooth NPs and abacus-like NPs. Coarse-grained molecular dynamics simulations are used to examine the endocytic efficiency of these NPs. The NPs with helical and abacus-like surfaces can be endocytosed via novel "standing up" (tip entry) and "gyroscope-like" (precession) pathways, respectively, which are distinct from the pathway of traditional NPs with smooth surfaces. This finding indicates that the cellular internalization capacity and pathways can be regulated by introducing stripe patterns (helical and abacus-like) onto the surface of rod-like NPs. The results of this study may lead to novel applications of biomaterials, such as advanced drug delivery systems.
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Affiliation(s)
- Jiaxiao Xue
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhou Guan
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Wenjie Zhang
- Department of Prosthodontics, School of Medicine, Ninth Hospital Affiliated to Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Xinquan Jiang
- Department of Prosthodontics, School of Medicine, Ninth Hospital Affiliated to Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
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33
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Li Q, Wang L, Lin J. Co-assembly behaviour of Janus nanoparticles and amphiphilic block copolymers in dilute solution. Phys Chem Chem Phys 2017; 19:24135-24145. [DOI: 10.1039/c7cp04501h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work not only provides insights into assembly behaviors of Janus nanoparticle solutions, but also offers strategies for permeable membranes.
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Affiliation(s)
- Qing Li
- Shanghai Key Laboratory of Advanced Polymeric Materials
- State Key Laboratory of Bioreactor Engineering
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- State Key Laboratory of Bioreactor Engineering
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials
- State Key Laboratory of Bioreactor Engineering
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
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