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Wan J, Fan B, Putera K, Kim J, Banaszak Holl MM, Thang SH. Polymerization-Induced Hierarchical Self-Assembly: From Monomer to Complex Colloidal Molecules and Beyond. ACS NANO 2021; 15:13721-13731. [PMID: 34375086 DOI: 10.1021/acsnano.1c05089] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The nanoscale hierarchical design that draws inspiration from nature's biomaterials allows the enhancement of material performance and enables multifarious applications. Self-assembly of block copolymers represents one of these artificial techniques that provide an elegant bottom-up strategy for the synthesis of soft colloidal hierarchies. Fast-growing polymerization-induced self-assembly (PISA) renders a one-step process for the polymer synthesis and in situ self-assembly at high concentrations. Nevertheless, it is exceedingly challenging for the fabrication of hierarchical colloids via aqueous PISA, simply because most monomers produce kinetically trapped spheres except for a few PISA-suitable monomers. We demonstrate here a sequential one-pot synthesis of hierarchically self-assembled polymer colloids with diverse morphologies via aqueous PISA that overcomes the limitation. Complex formation of water-immiscible monomers with cyclodextrin via "host-guest" inclusion, followed by sequential aqueous polymerization, provides a linear triblock terpolymer that can in situ self-assemble into hierarchical nanostructures. To access polymer colloids with different morphologies, three types of linear triblock terpolymers were synthesized through this methodology, which allows the preparation of AXn-type colloidal molecules (CMs), core-shell-corona micelles, and raspberry-like nanoparticles. Furthermore, the phase separations between polymer blocks in nanostructures were revealed by transmission electron microscopy and atomic force microscopy-infrared spectroscopy. The proposed mechanism explained how the interfacial tensions and glass transition temperatures of the core-forming blocks affect the morphologies. Overall, this study provides a scalable method of the production of CMs and other hierarchical structures. It can be applied to different block copolymer formulations to enrich the complexity of morphology and enable diverse functions of nano-objects.
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2
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Zhang T, Zhan C, Huang X, Huang Y, Zong L, Hong L, Ngai T. Adaptive Morphology of Surface‐Segregated Micelles Synthesized from Polymerization‐Induced Self‐Assembly Co‐Mediated by a Binary Mixture of Macro‐RAFT Agents. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tongtong Zhang
- Faculty of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology Guangzhou 510640 China
| | - Chengdong Zhan
- Faculty of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology Guangzhou 510640 China
| | - Xiangyue Huang
- Faculty of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology Guangzhou 510640 China
| | - Yinghui Huang
- Faculty of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology Guangzhou 510640 China
| | - Lina Zong
- Faculty of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology Guangzhou 510640 China
| | - Liangzhi Hong
- Faculty of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology Guangzhou 510640 China
| | - To Ngai
- Department of Chemistry The Chinese University of Hong Kong Shatin N.T. Hong Kong
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3
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Hils C, Manners I, Schöbel J, Schmalz H. Patchy Micelles with a Crystalline Core: Self-Assembly Concepts, Properties, and Applications. Polymers (Basel) 2021; 13:1481. [PMID: 34064413 PMCID: PMC8125556 DOI: 10.3390/polym13091481] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/30/2021] [Accepted: 05/01/2021] [Indexed: 02/07/2023] Open
Abstract
Crystallization-driven self-assembly (CDSA) of block copolymers bearing one crystallizable block has emerged to be a powerful and highly relevant method for the production of one- and two-dimensional micellar assemblies with controlled length, shape, and corona chemistries. This gives access to a multitude of potential applications, from hierarchical self-assembly to complex superstructures, catalysis, sensing, nanomedicine, nanoelectronics, and surface functionalization. Related to these applications, patchy crystalline-core micelles, with their unique, nanometer-sized, alternating corona segmentation, are highly interesting, as this feature provides striking advantages concerning interfacial activity, functionalization, and confinement effects. Hence, this review aims to provide an overview of the current state of the art with respect to self-assembly concepts, properties, and applications of patchy micelles with crystalline cores formed by CDSA. We have also included a more general discussion on the CDSA process and highlight block-type co-micelles as a special type of patchy micelle, due to similarities of the corona structure if the size of the blocks is well below 100 nm.
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Affiliation(s)
- Christian Hils
- Macromolecular Chemistry II, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany;
| | - Ian Manners
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada;
| | - Judith Schöbel
- Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstraße 69, 14476 Potsdam-Golm, Germany
| | - Holger Schmalz
- Macromolecular Chemistry II, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany;
- Bavarian Polymer Institute (BPI), University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
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4
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Fu C, Yang Y, Qiu F, Shi AC. Fractional yield and phase separation of ladder-like interpolymer complexation between diblock copolymers. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Multifunctional biocompatible Janus nanostructures for biomedical applications. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2019. [DOI: 10.1016/j.cobme.2019.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Yan N, Liu X, Zhang Y, Sun N, Jiang W, Zhu Y. Confined co-assembly of AB/BC diblock copolymer blends under 3D soft confinement. SOFT MATTER 2018; 14:4679-4686. [PMID: 29634055 DOI: 10.1039/c8sm00486b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Compared to synthesizing a new block copolymer, blending of two types of block copolymers or a block copolymer and a homopolymer is a simple yet effective approach to create new self-assembled nanostructures. Here, we apply Monte Carlo (MC) simulations to mimic the co-assembly of AB/BC diblock copolymer blends within a three-dimensional (3D) soft confined space, which corresponds to the co-assembly confined in an emulsion droplet in experiment. The confined co-assemblies of four types of block copolymer blends at different block ratios, i.e., A8B8/B8C8, A6B10/B10C6, A12B4/B4C12 and A12B4/B10C6, are investigated by MC simulations. The simulation results reveal that the ratio of different types of blocks and the polymer-solvent interactions between the different blocks and the solvent determine the final self-assembled nanostructures. By tailoring these two controlling parameters, we not only reproduced some classic nanostructures, i.e., pupa-, onion-, and bud-like particles, but also predicted some unconventional nanostructures, such as patch-, Janus-, peanut-, disc- and snowman-like particles via MC simulations.
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Affiliation(s)
- Nan Yan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
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7
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Li W, Fan X, Wang X, Shang X, Wang Q, Lin J, Hu Z, Li Z. Stereocomplexed micelle formation through enantiomeric PLA-based Y-shaped copolymer for targeted drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:688-695. [PMID: 30033303 DOI: 10.1016/j.msec.2018.06.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/11/2018] [Accepted: 06/08/2018] [Indexed: 12/29/2022]
Abstract
In this study, a novel stereocomplexed micelle system was prepared from the self-assembly of enantiomeric PLA-based Y-shaped copolymers, i.e. folic acid-adamantane/β-cyclodextrin-b-[poly(D-lactide)]2 (FA-AD/CD-b-(PDLA)2) and poly(2-dimethylaminoethyl methacrylate)-b-[poly(L-lactide)]2 (PDMAEMA-b-(PLLA)2) in aqueous solution. The newly designed Y-shaped copolymer FA-AD/CD-b-(PDLA)2 was prepared by a combination of "click" reaction and host guest interaction between FA-AD and CD-b-(PDLA)2. In addition, enantiomeric Y-shaped PDMAEMA-b-(PLLA)2 copolymer was synthesized through ring-opening polymerization (ROP) of L-lactide using three-head initiator with bromo and -OH at distal ends, followed by atom transfer radical polymerization (ATRP) of DMAEMA to obtain the desired macromolecular architecture. The resultant copolymers and their intermediates were characterized by 1H nuclear magnetic resonance (1H NMR) and gel permeation chromatography (GPC) techniques. Due to the strong stereocomplexation interaction, FA-AD/CD-b-(PDLA)2 and PDMAEMA-b-(PLLA)2 mixture could self-assemble into stable mixed micelles in aqueous solution. Further, the stereocomplexed micelles exhibited excellent biocompatibility as revealed in the cytotoxicity assay. Together with the intrinsic biodegradability of PLA, it is envisioned that the stereocomplexed micelles developed in this study can be used as a promising nanocarrier for targeting drug delivery.
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Affiliation(s)
- Wenqiang Li
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; The Second Affiliated Hospital of Xinxiang Medical University, Henan Key Lab of Biological Psychiatry of Xinxiang Medical University, China
| | - Xiaoshan Fan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Xiaokun Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Xiaohong Shang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Qi Wang
- The Second Affiliated Hospital of Xinxiang Medical University, Henan Key Lab of Biological Psychiatry of Xinxiang Medical University, China
| | - Juntang Lin
- The Second Affiliated Hospital of Xinxiang Medical University, Henan Key Lab of Biological Psychiatry of Xinxiang Medical University, China
| | - Zhiguo Hu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China.
| | - Zibiao Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore.
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8
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Oliver AM, Gwyther J, Winnik MA, Manners I. Cylindrical Micelles with “Patchy” Coronas from the Crystallization-Driven Self-Assembly of ABC Triblock Terpolymers with a Crystallizable Central Polyferrocenyldimethylsilane Segment. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02025] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Alex M. Oliver
- School
of Chemistry, University of Bristol, Bristol, BS8 1TS, U.K
| | - Jessica Gwyther
- School
of Chemistry, University of Bristol, Bristol, BS8 1TS, U.K
| | - Mitchell A. Winnik
- Department
of Chemistry, University of Toronto, 80 George Street, Toronto, Ontario M5S 3H6, Canada
| | - Ian Manners
- School
of Chemistry, University of Bristol, Bristol, BS8 1TS, U.K
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9
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Tritschler U, Pearce S, Gwyther J, Whittell GR, Manners I. 50th Anniversary Perspective: Functional Nanoparticles from the Solution Self-Assembly of Block Copolymers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02767] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ulrich Tritschler
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Sam Pearce
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Jessica Gwyther
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - George R. Whittell
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Ian Manners
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
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10
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Yu Z, Lin S, Liu G, Hu J, Zhang P, Tu Y, Zou H, Wei Y, Gao Z. Highly dispersible silver nanowires via a diblock copolymer approach for potential application in transparent conductive composites. NEW J CHEM 2017. [DOI: 10.1039/c7nj00178a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile and reproducible strategy for fabricating highly dispersible silver nanowires (AgNWs) in nonalcoholic organic solvents using diblock copolymer micelles.
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Affiliation(s)
- Zhiwei Yu
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Shudong Lin
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Guojun Liu
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Jiwen Hu
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Pei Zhang
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Yuanyuan Tu
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Hailiang Zou
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Yanlong Wei
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Zhenzhong Gao
- College of Materials and Energy
- South China Agriculture University
- Guangzhou
- P. R. China
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11
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Sun L, Hong L, Wang C. Facile Fabrication of Water Dispersible Latex Particles with Homogeneous or Chain-Segregated Surface from RAFT Polymerization Using a Mixture of Two Macromolecular Chain Transfer Agents. Macromol Rapid Commun 2016; 37:691-9. [DOI: 10.1002/marc.201600003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 02/11/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Li Sun
- Department of Polymer Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Liangzhi Hong
- Department of Polymer Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Chaoyang Wang
- Research Institute of Materials Science; South China University of Technology; Guangzhou 510640 China
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12
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Gröschel AH, Müller AHE. Self-assembly concepts for multicompartment nanostructures. NANOSCALE 2015; 7:11841-76. [PMID: 26123217 DOI: 10.1039/c5nr02448j] [Citation(s) in RCA: 236] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Compartmentalization is ubiquitous to many biological and artificial systems, be it for the separate storage of incompatible matter or to isolate transport processes. Advancements in the synthesis of sequential block copolymers offer a variety of tools to replicate natural design principles with tailor-made soft matter for the precise spatial separation of functionalities on multiple length scales. Here, we review recent trends in the self-assembly of amphiphilic block copolymers to multicompartment nanostructures (MCNs) under (semi-)dilute conditions, with special emphasis on ABC triblock terpolymers. The intrinsic immiscibility of connected blocks induces short-range repulsion into discrete nano-domains stabilized by a third, soluble block or molecular additive. Polymer blocks can be synthesized from an arsenal of functional monomers directing self-assembly through packing frustration or response to various fields. The mobility in solution further allows the manipulation of self-assembly processes into specific directions by clever choice of environmental conditions. This review focuses on practical concepts that direct self-assembly into predictable nanostructures, while narrowing particle dispersity with respect to size, shape and internal morphology. The growing understanding of underlying self-assembly mechanisms expands the number of experimental concepts providing the means to target and manipulate progressively complex superstructures.
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Affiliation(s)
- André H Gröschel
- Molecular Materials, Department of Applied Physics, Aalto University School of Science, FIN-00076 Aalto, Espoo, Finland.
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13
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Hierarchical nanostructures self-assembled from a mixture system containing rod-coil block copolymers and rigid homopolymers. Sci Rep 2015; 5:10137. [PMID: 25965726 PMCID: PMC4428031 DOI: 10.1038/srep10137] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 03/30/2015] [Indexed: 01/28/2023] Open
Abstract
Self-assembly behavior of a mixture system containing rod-coil block copolymers and rigid homopolymers was investigated by using Brownian dynamics simulations. The morphologies of formed hierarchical self-assemblies were found to be dependent on the Lennard-Jones (LJ) interaction εRR between rod blocks, lengths of rod and coil blocks in copolymer, and mixture ratio of block copolymers to homopolymers. As the εRR value decreases, the self-assembled structures of mixtures are transformed from an abacus-like structure to a helical structure, to a plain fiber, and finally are broken into unimers. The order parameter of rod blocks was calculated to confirm the structure transition. Through varying the length of rod and coil blocks, the regions of thermodynamic stability of abacus, helix, plain fiber, and unimers were mapped. Moreover, it was discovered that two levels of rod block ordering exist in the helices. The block copolymers are helically wrapped on the homopolymer bundles to form helical string, while the rod blocks are twistingly packed inside the string. In addition, the simulation results are in good agreement with experimental observations. The present work reveals the mechanism behind the formation of helical (experimentally super-helical) structures and may provide useful information for design and preparation of the complex structures.
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14
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Structural reorganization of cylindrical nanoparticles triggered by polylactide stereocomplexation. Nat Commun 2014; 5:5746. [PMID: 25517544 PMCID: PMC4281646 DOI: 10.1038/ncomms6746] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 11/04/2014] [Indexed: 12/25/2022] Open
Abstract
Co-crystallization of polymers with different configurations/tacticities provides access to materials with enhanced performance. The stereocomplexation of isotactic poly(L-lactide) and poly(D-lactide) has led to improved properties compared with each homochiral material. Herein, we report the preparation of stereocomplex micelles from a mixture of poly(L-lactide)-b-poly(acrylic acid) and poly(D-lactide)-b-poly(acrylic acid) diblock copolymers in water via crystallization-driven self-assembly. During the formation of these stereocomplex micelles, an unexpected morphological transition results in the formation of dense crystalline spherical micelles rather than cylinders. Furthermore, mixture of cylinders with opposite homochirality in either THF/H2O mixtures or in pure water at 65 °C leads to disassembly into stereocomplexed spherical micelles. Similarly, a transition is also observed in a related PEO-b-PLLA/PEO-b-PDLA system, demonstrating wider applicability. This new mechanism for morphological reorganization, through competitive crystallization and stereocomplexation and without the requirement for an external stimulus, allows for new opportunities in controlled release and delivery applications. A polymer stereocomplex can possess quite different properties to its constituent homopolymers. Here, the authors prepare stereocomplex micelles of amphiphilic block-copolymers via crystallization-driven self-assembly, and observe a change from cylindrical to mixed spherical micelle morphology.
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15
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Nunns A, Whittell GR, Winnik MA, Manners I. Crystallization-Driven Solution Self-Assembly of μ-ABC Miktoarm Star Terpolymers with Core-Forming Polyferrocenylsilane Blocks. Macromolecules 2014. [DOI: 10.1021/ma501725h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Adam Nunns
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K
| | | | - Mitchell A. Winnik
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Ian Manners
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K
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16
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Finnegan JR, Lunn DJ, Gould OEC, Hudson ZM, Whittell GR, Winnik MA, Manners I. Gradient Crystallization-Driven Self-Assembly: Cylindrical Micelles with “Patchy” Segmented Coronas via the Coassembly of Linear and Brush Block Copolymers. J Am Chem Soc 2014; 136:13835-44. [DOI: 10.1021/ja507121h] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- John R. Finnegan
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - David J. Lunn
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Oliver E. C. Gould
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Zachary M. Hudson
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - George R. Whittell
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Mitchell A. Winnik
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Ian Manners
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
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17
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Sheng Y, Yan N, An J, Zhu Y. Multicompartment nanoparticles from the self-assembly of mixtures of ABC and AC block copolymers in C-selective solvents. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2014.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Tran LTC, Lesieur S, Faivre V. Janus nanoparticles: materials, preparation and recent advances in drug delivery. Expert Opin Drug Deliv 2014; 11:1061-74. [PMID: 24811771 DOI: 10.1517/17425247.2014.915806] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION The term Janus particles was used to describe particles that are the combination of two distinct sides with differences in chemical nature and/or polarity on each face. Due to the exponential growth of interest on multifunctional nanotechnologies, such anisotropic nanoparticles are promising tools in the field of drug delivery. AREAS COVERED The main preparation processes and the materials used have been described first. Then a specific focus has been done on therapeutic and/or diagnostic applications of Janus particles. EXPERT OPINION Janus particles are demonstrated as interesting objects with advanced properties that combine features and functionalities of different materials in one single unit. Due to their dual structure, Janus particles are promising candidates for a variety of high-quality applications dealing with drug delivery purposes. Still, the main challenges for the future lie in the development of the preparation of shape-controlled and nano-sized particles with large-scale production processes and approved pharmaceutical excipients.
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Affiliation(s)
- Le-Tuyet-Chau Tran
- UMR CNRS 8612, Institut Galien Paris-Sud Labo. Physico-chimie des Systèmes Polyphasés , 5, rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex , France
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19
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Santos JL, Herrera-Alonso M. Kinetically Arrested Assemblies of Architecturally Distinct Block Copolymers. Macromolecules 2013. [DOI: 10.1021/ma402047e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- José Luis Santos
- Department of Materials Science and Engineering, The Johns Hopkins University, Baltimore, Maryland 21218
| | - Margarita Herrera-Alonso
- Department of Materials Science and Engineering, The Johns Hopkins University, Baltimore, Maryland 21218
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20
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Cheng L, Lin X, Wang F, Liu B, Zhou J, Li J, Li W. Well-Defined Polymeric Double Helices with Solvent-Triggered Destruction from Amphiphilic Hairy-Like Nanoparticles. Macromolecules 2013. [DOI: 10.1021/ma401726x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Lin Cheng
- Key Laboratory of Functional Molecular Solids, Ministry
of Education of China, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
| | - Xiang Lin
- Key Laboratory of Functional Molecular Solids, Ministry
of Education of China, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Fengyang Wang
- Key Laboratory of Functional Molecular Solids, Ministry
of Education of China, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Biao Liu
- Key Laboratory of Functional Molecular Solids, Ministry
of Education of China, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Jincheng Zhou
- Key Laboratory of Functional Molecular Solids, Ministry
of Education of China, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Jie Li
- Key Laboratory of Functional Molecular Solids, Ministry
of Education of China, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Wenlian Li
- Key Laboratory of Functional Molecular Solids, Ministry
of Education of China, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
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21
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Ian W, Guojun L. Self-assembly and chemical processing of block copolymers: a roadmap towards a diverse array of block copolymer nanostructures. SCIENCE CHINA. LIFE SCIENCES 2013. [PMID: 23740360 DOI: 10.1007/s11427-013-4499-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 05/27/2013] [Indexed: 11/28/2022]
Abstract
Block copolymers can yield a diverse array of nanostructures. Their assembly structures are influenced by their inherent structures, and the wide variety of structures that can be prepared especially becomes apparent when one considers the number of routes available to prepare block copolymer assemblies. Some examples include self-assembly, directed assembly, coupling, as well as hierarchical assembly, which can yield assemblies having even higher structural order. These assembly routes can also be complemented by processing techniques such as selective crosslinking and etching, the former technique leading to permanent structures, the latter towards sculpted and the combination of the two towards permanent sculpted structures. The combination of these pathways provides extremely versatile routes towards an exciting variety of architectures. This review will attempt to highlight destinations reached by LIU Guojun and coworkers following these pathways.
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Affiliation(s)
- Wyman Ian
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, K7L 3N6, Canada
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22
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Wyman I, Liu G. Self-assembly and chemical processing of block copolymers: A roadmap towards a diverse array of block copolymer nanostructures. Sci China Chem 2013. [DOI: 10.1007/s11426-013-4951-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Walther A, Müller AHE. Janus Particles: Synthesis, Self-Assembly, Physical Properties, and Applications. Chem Rev 2013; 113:5194-261. [DOI: 10.1021/cr300089t] [Citation(s) in RCA: 1328] [Impact Index Per Article: 120.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Andreas Walther
- DWI at RWTH Aachen University − Institute for Interactive Materials Research, D-52056 Aachen, Germany
| | - Axel H. E. Müller
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz,
Germany
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24
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Zhou HM, Cheng H, Luo ZH. Double-hydrophobic siloxane diblock copolymers: Synthesis, micellization behavior, and application as a stabilizer for silver nanoparticles. POLYM ENG SCI 2012. [DOI: 10.1002/pen.23400] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Zhuang Z, Zhu X, Cai C, Lin J, Wang L. Self-Assembly of a Mixture System Containing Polypeptide Graft and Block Copolymers: Experimental Studies and Self-Consistent Field Theory Simulations. J Phys Chem B 2012; 116:10125-34. [DOI: 10.1021/jp305956v] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zeliang Zhuang
- 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
| | - Xiaomeng Zhu
- 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
| | - 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
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26
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Han Y, Cui J, Jiang W. Vesicle Structure and Formation of AB/BC Amphiphile Mixture Based on Hydrogen Bonding in a Selective Solvent: A Monte Carlo Study. J Phys Chem B 2012; 116:9208-14. [DOI: 10.1021/jp3009783] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuanyuan Han
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022,
P. R. China
| | - Jie Cui
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022,
P. R. China
| | - Wei Jiang
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022,
P. R. China
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27
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Xiong D, Liu G, Duncan EJS. Simultaneous coating of silica particles by two diblock copolymers. ACS APPLIED MATERIALS & INTERFACES 2012; 4:2445-2454. [PMID: 22551090 DOI: 10.1021/am300127d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Silica particles have been coated by two diblock copolymers, P1 and P2, through a one-pot reaction, and the resultant particles were characterized. The P1 and P2 used were synthesized by anionic polymerization and denote PIPSMA-b-PFOEMA and PIPSMA-b-PtBA, respectively. Here PIPSMA, PFOEMA, and PtBA correspond individually to poly[3-(triisopropyloxysilyl)propyl methacrylate], poly(perfluorooctylethyl methacrylate), and poly(tert-butyl acrylate). Catalyzed by HCl, the PIPSMA blocks of P1 and P2 co-condensed onto the surface of the same silica particles, exposing the PtBA and PFOEMA blocks. The relative amounts of grafted P1 and P2 could be tuned by changing the P1 to P2 weight ratio and were quantified by thermogravimetric analysis. The vertical segregation of the PFOEMA and PtBA chains could also be adjusted. Casting a dispersion of the coated particles in a solvent selective for either PFOEMA or PtBA onto glass plates or silicon wafers yielded films consisting of bumpy silica particles whose surfaces were enriched by the polymer that was soluble in the casting solvent. Particulate coatings with tunable surface wetting properties were obtained by changing either the proportion of grafted P1 and P2 or the casting solvent for coated silica. When a silica dispersion in perfluoromethylcychohexane (C(7)F(14)) was cast, films of coated silica that had P1 weight fractions of 25, 50, and 75% were all superhydrophobic because the particle surfaces were enriched by PFOEMA, which was selectively soluble in C(7)F(14).
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Affiliation(s)
- Dean Xiong
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
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28
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Affiliation(s)
- Yongming Chen
- Laboratory of Polymer Physics
and Chemistry, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
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29
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ZHUANG Y, WANG L, LIN J. SELF-ASSEMBLY BEHAVIOR OF SUPRAMOLECULAR DIBLOCK COPOLYMER/HOMOPOLYMER MIXTURES WITH NON-COVALENT BONDING INTERACTIONS IN SELECTIVE SOLVENTS. ACTA POLYM SIN 2011. [DOI: 10.3724/sp.j.1105.2011.11017] [Citation(s) in RCA: 3] [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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30
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Salim NV, Guo Q. Multiple Vesicular Morphologies in AB/AC Diblock Copolymer Complexes through Hydrogen Bonding Interactions. J Phys Chem B 2011; 115:9528-36. [DOI: 10.1021/jp200678a] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nisa V. Salim
- Polymers Research Group, Institute for Technology Research and Innovation, Deakin University, Geelong, Victoria 3216, Australia
| | - Qipeng Guo
- Polymers Research Group, Institute for Technology Research and Innovation, Deakin University, Geelong, Victoria 3216, Australia
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31
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Han Y, Jiang W. Self-Assembly of the AB/BC Diblock Copolymer Mixture Based on Hydrogen Bonding in a Selective Solvent: A Monte Carlo Study. J Phys Chem B 2011; 115:2167-72. [DOI: 10.1021/jp1106313] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuanyuan Han
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China, and Graduate University of the Chinese Academy of Sciences
| | - Wei Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China, and Graduate University of the Chinese Academy of Sciences
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32
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Hu A, Cui Y, Wei X, Lu Z, Ngai T. Hydrogen-bonding-induced complexation of polydimethylsiloxane-graft-poly(ethylene oxide) and poly(acrylic acid)-block-polyacrylonitrile micelles in water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:14502-14508. [PMID: 20722378 DOI: 10.1021/la102539v] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Polydimethylsiloxane-graft-poly(ethylene oxide) (PDMS-g-PEO) copolymers form micelles in water with PDMS as the core and PEO as the corona. The introduction of poly(acrylic acid)-block-polyacrylonitrile (PAA-b-PAN) block copolymers in water leads to the formation of micellar complexes due to the hydrogen bonding between carboxyl groups and ether oxygens among the PAA and PEO chains in the corona of the micelles. The effects of pH, molar ratios (r) of PAA/PEO, and the standing time on the directly mixing these two micelles in water have been investigated using laser light scattering (LLS) and transmission electron microscopy (TEM). Our results showed that the complexation between PAA and PEO in the corona was greatly enhanced at a pH below 3.5. For a fixed pH value, the interactions between these two micelles in water were governed by the value of r. At r < ∼0.6, mixing the two micelles in water resulted in a large floccule because the smaller PAA-b-PAN micelles act as physical cross-links, which are absorbed onto one PDMS-g-PEO micelle and simultaneously bonded to PEO chains on the other micelles, forming bridges and causing flocculation. At ∼0.6 < r < ∼1.2, the mixing led to stable micellar complexes with a layer of PAA-b-PAN micelles absorbed onto the initial PDMS-g-PEO micelles. At r > ∼1.2, the resultant micellar complexes first remained stable, but they precipitated from solution after a long time standing.
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Affiliation(s)
- Aijuan Hu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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33
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Pan Q, Tong C, Zhu Y, Yang Q. Phase behaviors of bidisperse nanoparticle/block copolymer mixtures in dilute solutions. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.07.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Walther A, Barner-Kowollik C, Müller AHE. Mixed, multicompartment, or Janus micelles? A systematic study of thermoresponsive bis-hydrophilic block terpolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:12237-12246. [PMID: 20465237 DOI: 10.1021/la101173b] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We present a systematic investigation of the extent of compartmentalization in micelles formed by a series of bis-hydrophilic block terpolymers with two outer water-soluble segments. The corona blocks are constructed from poly(ethylene oxide) (PEO) and the thermoresponsive poly(N-isopropyl-acrylamide) (PNiPAAm). The fraction of PNiPAAm is varied to establish its influence on the supramicellar aggregation and corona phase behavior. We demonstrate that--when the collapse of PNiPAAm is triggered--a clustering of micelles into superstructures only occurs when the contour length of the thermoresponsive block is longer than that of the PEO chains. The volume fractions play a minor role. The extent of superstructure formation increases with the amount of heating cycles, pointing to a rearrangement of micelles with a mixed corona into a phase-segregated corona. The collapse of PNiPAAm is exploited to artificially raise the incompatibility and drive phase segregation. A uniform population of biphasic Janus micelles cannot be obtained. After repeated heating cycles, the mixture consists of a range of multicompartment architectures, whose patch distribution can be derived from aggregate structures found in cryo-TEM obtained at high temperature. In the last section, we relate our results to previously studied systems and attempt to derive some generalities. First, we try to answer the question of how likely it is in terms of thermodynamics to obtain truly self-assembled Janus micelles. Furthermore, our results can provide an estimation for the volume ratio or/and block lengths required in micelles composed out of two corona blocks to induce supramicellar aggregation when a hydrophilic-to-hydrophobic phase transition is triggered in one of the blocks.
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Affiliation(s)
- Andreas Walther
- Makromolekulare Chemie II and Bayreuther Zentrum für Kolloide und Grenzflächen, Universität Bayreuth, D-95440 Bayreuth, Germany
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35
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Miao Q, Jin Y, Dong Y, Cao Z, Zhang B. Synthesis and morphology transformation of amphiphilic diblock polyurethane copolymers in aqueous solution. POLYM INT 2010. [DOI: 10.1002/pi.2836] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Fabrication of SiO2 hollow microsphere with urchin-like structure based on template from directed assembly of block copolymer. Colloid Polym Sci 2010. [DOI: 10.1007/s00396-010-2184-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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37
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Zhu Y, Yang Q, Tong C, Li M, Yu X. The vesicle formation in a binary amphiphilic diblock copolymer/homopolymer solution. POLYMER 2010. [DOI: 10.1016/j.polymer.2009.07.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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Zhao F, Sun J, Liu Z, Feng L, Hu J. Multiple morphologies of the aggregates from self-assembly of diblock copolymer with relatively long corona-forming block in dilute aqueous solution. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/polb.21898] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Zhao B, Zhu L. Mixed Polymer Brush-Grafted Particles: A New Class of Environmentally Responsive Nanostructured Materials. Macromolecules 2009. [DOI: 10.1021/ma902042x] [Citation(s) in RCA: 181] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bin Zhao
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996
| | - Lei Zhu
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106
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40
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Wang C, Wang T, Pei X, Wang Q. Shell–core–corona aggregates formed from poly(styrene)-poly(4-vinylpyridine) block copolymer induced by added homopolymer via interpolymer hydrogen-bonding. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.09.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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41
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Hydrogen bond mediated supramolecular micellization of diblock copolymer mixture in common solvents. Eur Polym J 2009. [DOI: 10.1016/j.eurpolymj.2009.03.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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42
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Hou Y, Ye J, Wei X, Zhang G. Effects of Cations on the Sorting of Oppositely Charged Microgels. J Phys Chem B 2009; 113:7457-61. [DOI: 10.1021/jp902556m] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yi Hou
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, China, and Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Jing Ye
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, China, and Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Xiaoling Wei
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, China, and Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Guangzhao Zhang
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, China, and Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
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43
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Li G, Guo L, Ma S, Liu J. Complex micelles formed from two diblock copolymers for applications in controlled drug release. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23274] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Guiying Li
- College of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Lei Guo
- College of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Songmei Ma
- College of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Junshen Liu
- College of Chemistry and Materials Science, Ludong University, Yantai 264025, China
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44
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Zhuang Y, Lin J, Wang L, Zhang L. Self-Assembly Behavior of AB/AC Diblock Copolymer Mixtures in Dilute Solution. J Phys Chem B 2009; 113:1906-13. [DOI: 10.1021/jp809181d] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ying Zhuang
- 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
- 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
- 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
- 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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45
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46
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Kim SH, Tan JPK, Nederberg F, Fukushima K, Yang YY, Waymouth RM, Hedrick JL. Mixed Micelle Formation through Stereocomplexation between Enantiomeric Poly(lactide) Block Copolymers. Macromolecules 2008. [DOI: 10.1021/ma801739x] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sung Ho Kim
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; Department of Chemistry, Stanford University, Stanford, California 94305; and Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669
| | - Jeremy P. K. Tan
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; Department of Chemistry, Stanford University, Stanford, California 94305; and Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669
| | - Fredrik Nederberg
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; Department of Chemistry, Stanford University, Stanford, California 94305; and Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669
| | - Kazuki Fukushima
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; Department of Chemistry, Stanford University, Stanford, California 94305; and Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669
| | - Yi Yan Yang
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; Department of Chemistry, Stanford University, Stanford, California 94305; and Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669
| | - Robert M. Waymouth
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; Department of Chemistry, Stanford University, Stanford, California 94305; and Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669
| | - James L. Hedrick
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; Department of Chemistry, Stanford University, Stanford, California 94305; and Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669
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47
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Njikang G, Han D, Wang J, Liu G. ABC Triblock Copolymer Micelle-Like Aggregates in Selective Solvents for A and C. Macromolecules 2008. [DOI: 10.1021/ma801882r] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gabriel Njikang
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Dehui Han
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Jian Wang
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Guojun Liu
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
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48
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Hameed N, Guo Q. Nanostructure and hydrogen bonding in interpolyelectrolyte complexes of poly(ɛ-caprolactone)-block-poly(2-vinyl pyridine) and poly(acrylic acid). POLYMER 2008. [DOI: 10.1016/j.polymer.2008.09.032] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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49
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Hu J, Njikang G, Liu G. Twisted ABC Triblock Copolymer Cylinders with Segregated A and C Coronal Chains. Macromolecules 2008. [DOI: 10.1021/ma801626y] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiwen Hu
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N
| | - Gabriel Njikang
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N
| | - Guojun Liu
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N
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50
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Chen K, Liang D, Tian J, Shi L, Zhao H. In-Situ Polymerization at the Interfaces of Micelles: A “Grafting From” Method to Prepare Micelles with Mixed Coronal Chains. J Phys Chem B 2008; 112:12612-7. [DOI: 10.1021/jp803216s] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kaiqiang Chen
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, P. R. China and Department of Polymer Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Dehai Liang
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, P. R. China and Department of Polymer Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jia Tian
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, P. R. China and Department of Polymer Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, P. R. China and Department of Polymer Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, P. R. China and Department of Polymer Science and Engineering, Peking University, Beijing, 100871, P. R. China
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