1
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Morrell AH, Warren NJ, Thornton PD. The Production of Polysarcosine-Containing Nanoparticles by Ring-Opening Polymerization-Induced Self-Assembly. Macromol Rapid Commun 2024; 45:e2400103. [PMID: 38597209 DOI: 10.1002/marc.202400103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/02/2024] [Indexed: 04/11/2024]
Abstract
N-carboxyanhydride ring-opening polymerization-induced self-assembly (NCA ROPISA) offers a convenient route for generating poly(amino acid)-based nanoparticles in a single step, crucially avoiding the need for post-polymerization self-assembly. Most examples of NCA ROPISA make use of a poly(ethylene glycol) (PEG) hydrophilic stabilizing block, however this non-biodegradable, oil-derived polymer may cause an immunological response in some individuals. Alternative water-soluble polymers are therefore highly sought. This work reports the synthesis of wholly poly(amino acid)-based nanoparticles, through the chain-extension of a polysarcosine macroinitiator with L-Phenylalanine-NCA (L-Phe-NCA) and Alanine-NCA (Ala-NCA), via aqueous NCA ROPISA. The resulting polymeric structures comprise of predominantly anisotropic, rod-like nanoparticles, with morphologies primarily influenced by the secondary structure of the hydrophobic poly(amino acid) that enables their formation.
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Affiliation(s)
- Anna H Morrell
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Nicholas J Warren
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Paul D Thornton
- Leeds Institute of Textiles and Colour (LITAC), School of Design, University of Leeds, Leeds, LS2 9JT, UK
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2
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Lukáš Petrova S, Sincari V, Konefał R, Pavlova E, Hrubý M, Pokorný V, Jäger E. Microwave Irradiation-Assisted Reversible Addition-Fragmentation Chain Transfer Polymerization-Induced Self-Assembly of pH-Responsive Diblock Copolymer Nanoparticles. ACS OMEGA 2022; 7:42711-42722. [PMID: 36467927 PMCID: PMC9713868 DOI: 10.1021/acsomega.2c04036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 10/18/2022] [Indexed: 06/17/2023]
Abstract
Herein, we present a versatile platform for the synthesis of pH-responsive poly([N-(2-hydroxypropyl)]methacrylamide)-b-poly[2-(diisopropylamino)ethyl methacrylate] diblock copolymer (PHPMA-b-PDPA) nanoparticles (NPs) obtained via microwave-assisted reversible addition-fragmentation chain transfer polymerization-induced self-assembly (MWI-PISA). The N-(2-hydroxypropyl) methacrylamide (HPMA) monomer was first polymerized to obtain a macrochain transfer agent with polymerization degrees (DPs) of 23 and 51. Subsequently, using mCTA and 2-(diisopropylamino)ethyl methacrylate (DPA) as monomers, we successfully conducted MWI-PISA emulsion polymerization in aqueous solution with a solid content of 10 wt %. The NPs were obtained with high monomer conversion and polymerization rates. The resulting diblock copolymer NPs were analyzed by dynamic light scattering (DLS) and cryogenic-transmission electron microscopy (cryo-TEM). cryo-TEM studies reveal the presence of only NPs with spherical morphology such as micelles and polymer vesicles known as polymersomes. Under the selected conditions, we were able to fine-tune the morphology from micelles to polymersomes, which may attract considerable attention in the drug-delivery field. The capability for drug encapsulation using the obtained in situ pH-responsive NPs, the polymersomes based on PHPMA23-b-PDPA100, and the micelles based on PHPMA51-b-PDPA100 was demonstrated using the hydrophobic agent and fluorescent dye as Nile red (NR). In addition, the NP disassembly in slightly acidic environments enables fast NR release.
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3
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Zhang Y, Wang P, Li N, Guo C, Li S. The Effect of Topology on Block Copolymer Nanoparticles: Linear versus Star Block Copolymers in Toluene. Polymers (Basel) 2022; 14:polym14173691. [PMID: 36080766 PMCID: PMC9460934 DOI: 10.3390/polym14173691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Linear and star block copolymer (BCP) nanoparticles of (polystyrene-block-poly(4-vinylpyridine))n (PS-b-P4VP)n with arm numbers of 1, 2, 3, and 4 were prepared by two methods of polymerization-induced self-assembly (PISA) and general self-assembly of block copolymers in the low-polar organic solvent, toluene. The effect of the arm number on the size and/or morphology of the (PS-b-P4VP)n nanoassemblies synthesized by the two methods in toluene and on the polymerization kinetics was investigated in detail. Our results show that in toluene, a low-polar solvent, the topology not only affected the morphology of the BCP nanoparticles prepared by PISA, but also influenced the BCP nanoparticles synthesized through general self-assembly.
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4
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György C, Smith T, Growney DJ, Armes SP. Synthesis and derivatization of epoxy-functional sterically-stabilized diblock copolymer spheres in non-polar media: does the spatial location of the epoxy groups matter? Polym Chem 2022. [DOI: 10.1039/d2py00559j] [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
Epoxy-functional sterically-stabilized diblock copolymer nanoparticles are prepared via PISA in mineral oil and then derivatized using various reagents and reaction conditions.
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Affiliation(s)
- Csilla György
- Dainton Building, Department of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, UK
| | - Timothy Smith
- Lubrizol Ltd, Nether Lane, Hazelwood, Derbyshire, DE56 4AN, UK
| | | | - Steven P. Armes
- Dainton Building, Department of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, UK
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5
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Zhang T, Jiang H, Hong L, Ngai T. Multiple Pickering emulsions stabilized by surface-segregated micelles with adaptive wettability. Chem Sci 2022; 13:10752-10758. [PMID: 36320716 PMCID: PMC9491070 DOI: 10.1039/d2sc03783a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 07/27/2022] [Indexed: 11/21/2022] Open
Abstract
Surface-segregated micelles (SSMs) with adaptive wettability have considerable potential for application in Pickering emulsions and bioanalytical technology. In this study, spherical SSMs were prepared via polymerization-induced self-assembly co-mediated with a binary mixture of macromolecular chain transfer agents: pH-responsive poly(2-(dimethylamino) ethyl methacrylate) and hydrophobic polydimethylsiloxane. Using these SSMs as the sole emulsifier, we adjusted the pH to successfully produce both water-in-oil-in-water (W/O/W) and oil-in-water-in-oil (O/W/O) multiple emulsions through a single-step emulsification process. Moreover, we demonstrated that multiple emulsion systems with adjustable pH are suitable for the development of an efficient and recyclable interfacial catalytic system. Multiple emulsion microreactors increase the area of the oil–water interface and are therefore more efficient than the commonly used O/W and W/O emulsion systems. Surface-segregated micelles (SSMs) with adaptive wettability have considerable potential for application in Pickering emulsions and microreactors.![]()
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Affiliation(s)
- Tongtong Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Hang Jiang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education & School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Liangzhi Hong
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, P. R. China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin N.T., Hong Kong, P. R. China
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6
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Ko Y, Truong VK, Woo SY, Dickey MD, Hsiao L, Genzer J. Counterpropagating Gradients of Antibacterial and Antifouling Polymer Brushes. Biomacromolecules 2021; 23:424-430. [PMID: 34905339 DOI: 10.1021/acs.biomac.1c01386] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report on the formation of counterpropagating density gradients in poly([2-dimethylaminoethyl] methacrylate) (PDMAEMA) brushes featuring spatially varying quaternized and betainized units. Starting with PDMAEMA brushes with constant grafting density and degree of polymerization, we first generate a density gradient of quaternized units by directional vapor reaction involving methyl iodide. The unreacted DMAEMA units are then betainized through gaseous-phase betainization with 1,3-propanesultone. The gas reaction of PDMAEMA with 1,3-propanesultone eliminates the formation of byproducts present during the liquid-phase modification. We use the counterpropagating density gradients of quaternized and betainized PDMAEMA brushes in antibacterial and antifouling studies. Completely quaternized and betainized brushes exhibit antibacterial and antifouling behaviors. Samples containing 12% of quaternized and 85% of betainized units act simultaneously as antibacterial and antifouling surfaces.
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Affiliation(s)
- Yeongun Ko
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Vi Khanh Truong
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States.,Nanobiotechnology Laboratory, School of Science, RMIT University, Melbourne, VIC 3000, Australia
| | - Sun Young Woo
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Michael D Dickey
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Lilian Hsiao
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Jan Genzer
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States.,Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Hokkaido 060-0808, Japan
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7
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Britten CN, Lason K, Walters KB. Facile Synthesis of Tertiary Amine Pendant Polymers by Cu 0-Mediated ATRP under Aqueous Conditions. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01234] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Collin N. Britten
- School of Chemical, Biological and Materials Engineering, The University of Oklahoma, 100 East Boyd Street, Norman, Oklahoma 73019, United States
| | - Kristen Lason
- School of Chemical, Biological and Materials Engineering, The University of Oklahoma, 100 East Boyd Street, Norman, Oklahoma 73019, United States
| | - Keisha B. Walters
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
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8
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György C, Verity C, Neal TJ, Rymaruk MJ, Cornel EJ, Smith T, Growney DJ, Armes SP. RAFT Dispersion Polymerization of Methyl Methacrylate in Mineral Oil: High Glass Transition Temperature of the Core-Forming Block Constrains the Evolution of Copolymer Morphology. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01528] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Csilla György
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
| | - Chloe Verity
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
| | - Thomas J. Neal
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
| | - Matthew J. Rymaruk
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
| | - Erik J. Cornel
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
| | - Timothy Smith
- Lubrizol Ltd., Nether Lane, Hazelwood, Derbyshire DE56 4AN, U.K
| | | | - Steven P. Armes
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
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9
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Raphael E, Derry MJ, Hippler M, Armes SP. Tuning the properties of hydrogen-bonded block copolymer worm gels prepared via polymerization-induced self-assembly. Chem Sci 2021; 12:12082-12091. [PMID: 34667573 PMCID: PMC8457373 DOI: 10.1039/d1sc03156b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/04/2021] [Indexed: 12/19/2022] Open
Abstract
Polymerization-induced self-assembly (PISA) is exploited to design hydrogen-bonded poly(stearyl methacrylate)-poly(benzyl methacrylate) [PSMA-PBzMA] worm gels in n-dodecane. Using a carboxylic acid-based RAFT agent facilitates hydrogen bonding between neighboring worms to produce much stronger physical gels than those prepared using the analogous methyl ester-based RAFT agent. Moreover, tuning the proportion of these two types of end-groups on the PSMA chains enables the storage modulus (G') of a 20% w/w worm gel to be tuned from ∼4.5 kPa up to ∼114 kPa. This is achieved via two complementary routes: (i) an in situ approach using binary mixtures of acid- and ester-capped PSMA stabilizer chains during PISA or (ii) a post-polymerization processing strategy using a thermally-induced worm-to-sphere transition to mix acid- and ester-functionalized spheres at 110 °C that fuse to form worms on cooling to 20 °C. SAXS and rheology studies of these hydrogen-bonded worm gels provide detailed insights into their inter-worm interactions and physical behavior, respectively. In the case of the carboxylic acid-functionalized worms, SAXS provides direct evidence for additional inter-worm interactions, while rheological studies confirm both a significant reduction in critical gelation concentration (from approximately 10% w/w to 2-3% w/w) and a substantial increase in critical gelation temperature (from 41 °C to 92 °C). It is remarkable that a rather subtle change in the chemical structure results in such improvements in gel strength, gelation efficiency and gel cohesion.
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Affiliation(s)
- Eleanor Raphael
- Chemistry Department, University of Sheffield Dainton Building, Brook Hill Sheffield South Yorkshire S3 7HF UK
| | - Matthew J Derry
- Chemistry Department, University of Sheffield Dainton Building, Brook Hill Sheffield South Yorkshire S3 7HF UK
| | - Michael Hippler
- Chemistry Department, University of Sheffield Dainton Building, Brook Hill Sheffield South Yorkshire S3 7HF UK
| | - Steven P Armes
- Chemistry Department, University of Sheffield Dainton Building, Brook Hill Sheffield South Yorkshire S3 7HF UK
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10
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Polyampholyte poly[2-(dimethylamino)ethyl methacrylate]-star-poly(methacrylic acid) star copolymers as colloidal drug carriers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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Rymaruk MJ, O'Brien CT, György C, Darmau B, Jennings J, Mykhaylyk OO, Armes SP. Small-Angle X-Ray Scattering Studies of Block Copolymer Nano-Objects: Formation of Ordered Phases in Concentrated Solution During Polymerization-Induced Self-Assembly. Angew Chem Int Ed Engl 2021; 60:12955-12963. [PMID: 33725372 PMCID: PMC8252599 DOI: 10.1002/anie.202101851] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/12/2021] [Indexed: 01/13/2023]
Abstract
We report that polymerization-induced self-assembly (PISA) can be used to prepare lyotropic phases comprising diblock copolymer nano-objects in non-polar media. RAFT dispersion polymerization of benzyl methacrylate (BzMA) at 90 °C using a trithiocarbonate-capped hydrogenated polybutadiene (PhBD) steric stabilizer block in n-dodecane produces either spheres or worms that exhibit long-range order at 40 % w/w solids. NMR studies enable calculation of instantaneous copolymer compositions for each phase during the BzMA polymerization. As the PBzMA chains grow longer when targeting PhBD80 -PBzMA40 , time-resolved small-angle X-ray scattering reveals intermediate body-centered cubic (BCC) and hexagonally close-packed (HCP) sphere phases prior to formation of a final hexagonal cylinder phase (HEX). The HEX phase is lost on serial dilution and the aligned cylinders eventually form disordered flexible worms. The HEX phase undergoes an order-disorder transition on heating to 150 °C and a pure HCP phase forms on cooling to 20 °C.
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Affiliation(s)
- Matthew J. Rymaruk
- Dainton BuildingDepartment of ChemistryThe University of SheffieldSheffieldS3 7HFUK
- Present address: SyngentaJealott's HillBracknellBerkshireRG42 6EYUK
| | - Cate T. O'Brien
- Dainton BuildingDepartment of ChemistryThe University of SheffieldSheffieldS3 7HFUK
| | - Csilla György
- Dainton BuildingDepartment of ChemistryThe University of SheffieldSheffieldS3 7HFUK
| | - Bastien Darmau
- Dainton BuildingDepartment of ChemistryThe University of SheffieldSheffieldS3 7HFUK
| | - James Jennings
- Dainton BuildingDepartment of ChemistryThe University of SheffieldSheffieldS3 7HFUK
| | | | - Steven P. Armes
- Dainton BuildingDepartment of ChemistryThe University of SheffieldSheffieldS3 7HFUK
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12
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Rymaruk MJ, O'Brien CT, György C, Darmau B, Jennings J, Mykhaylyk OO, Armes SP. Small‐Angle X‐Ray Scattering Studies of Block Copolymer Nano‐Objects: Formation of Ordered Phases in Concentrated Solution During Polymerization‐Induced Self‐Assembly. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Matthew J. Rymaruk
- Dainton Building Department of Chemistry The University of Sheffield Sheffield S3 7HF UK
- Present address: Syngenta Jealott's Hill Bracknell Berkshire RG42 6EY UK
| | - Cate T. O'Brien
- Dainton Building Department of Chemistry The University of Sheffield Sheffield S3 7HF UK
| | - Csilla György
- Dainton Building Department of Chemistry The University of Sheffield Sheffield S3 7HF UK
| | - Bastien Darmau
- Dainton Building Department of Chemistry The University of Sheffield Sheffield S3 7HF UK
| | - James Jennings
- Dainton Building Department of Chemistry The University of Sheffield Sheffield S3 7HF UK
| | - Oleksandr O. Mykhaylyk
- Dainton Building Department of Chemistry The University of Sheffield Sheffield S3 7HF UK
| | - Steven P. Armes
- Dainton Building Department of Chemistry The University of Sheffield Sheffield S3 7HF UK
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13
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Ouyang Z, Li D, Xiong Z, Song C, Gao Y, Liu R, Shen M, Shi X. Antifouling Dendrimer-Entrapped Copper Sulfide Nanoparticles Enable Photoacoustic Imaging-Guided Targeted Combination Therapy of Tumors and Tumor Metastasis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6069-6080. [PMID: 33501834 DOI: 10.1021/acsami.0c21620] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The development of functional intelligent theranostic nanoplatform for imaging-directed synchronous inhibition of primary tumor and tumor metastasis is still a challenging task. We present here the creation of functional dendrimer-entrapped CuS nanoparticles (CuS DENPs) complexed with plasmid DNA-encoding hypermethylation in cancer 1 (pDNA-HIC1) for photoacoustic (PA) imaging-directed simultaneous inhibition of tumors and tumor metastasis. Poly(amidoamine) dendrimers of generation 5 were covalently attached with 1,3-propane sultone and arginine-glycine-aspartic acid (RGD) peptide through a spacer of poly(ethylene glycol) and adopted for the templated synthesis of CuS NPs. The prepared functional RGD-CuS DENPs possess a mean CuS core diameter of 4.2 nm, good colloidal stability, and an excellent absorption feature in the second near-infrared window, thus having a photothermal conversion efficiency of 49.8% and an outstanding PA imaging capability. The functional DENPs can effectively deliver pDNA-HIC1 to prevent cancer cell invasion and metastasis in a serum-enhancing manner by virtue of zwitterionic modification-rendered antifouling property. The developed RGD-CuS DENPs/pDNA polyplexes display αvβ3 integrin-targeted enhanced anticancer activity through the combined CuS NP-mediated photothermal therapy (PTT) and pDNA delivery-rendered cancer cell metastasis inhibition. This can also be proven by the therapeutic efficacy of a triple-negative breast cancer model in vivo, where inhibition of both the primary subcutaneous tumor and lung metastasis can be realized. The created dendrimer-CuS hybrid nanoplatform represents one of the updated designs of nanomedicine for PA imaging-directed combination PTT/gene therapy of tumors and tumor metastasis.
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Affiliation(s)
- Zhijun Ouyang
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Du Li
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Zhijuan Xiong
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Cong Song
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Yue Gao
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Renna Liu
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
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14
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Nieswandt K, Georgopanos P, Abetz V. Well-defined polyvinylpyridine- block-polystyrene diblock copolymers via RAFT aqueous-alcoholic dispersion polymerization: synthesis and isoporous thin film morphology. Polym Chem 2021. [DOI: 10.1039/d1py00074h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work presents the synthesis of polyvinylpyridine-polystyrene (PVP-b-PS) diblock copolymers via RAFT dispersion polymerization. Spin-coated PVP-b-PS films were converted into porous surfaces by a controlled alignment and swelling strategy.
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Affiliation(s)
- Katharina Nieswandt
- Helmholtz-Zentrum Geesthacht
- Institute of Membrane Research
- 21502 Geesthacht
- Germany
| | | | - Volker Abetz
- Helmholtz-Zentrum Geesthacht
- Institute of Membrane Research
- 21502 Geesthacht
- Germany
- Institute of Physical Chemistry
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15
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Hunter SJ, Cornel EJ, Mykhaylyk OO, Armes SP. Effect of Salt on the Formation and Stability of Water-in-Oil Pickering Nanoemulsions Stabilized by Diblock Copolymer Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:15523-15535. [PMID: 33332972 PMCID: PMC7884014 DOI: 10.1021/acs.langmuir.0c02742] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Sterically stabilized diblock copolymer nanoparticles are prepared in n-dodecane using polymerization-induced self-assembly. Precursor Pickering macroemulsions are then prepared by the addition of water followed by high-shear homogenization. In the absence of any salt, high-pressure microfluidization of such precursor emulsions leads to the formation of relatively large aqueous droplets with DLS measurements indicating a mean diameter of more than 600 nm. However, systemically increasing the salt concentration produces significantly finer droplets after microfluidization, until a limiting diameter of around 250 nm is obtained at 0.11 M NaCl. The mean size of these aqueous droplets can also be tuned by systematically varying the nanoparticle concentration, applied pressure, and the number of passes through the microfluidizer. The mean number of nanoparticles adsorbed onto each aqueous droplet and their packing efficiency are calculated. SAXS studies conducted on a Pickering nanoemulsion prepared using 0.11 M NaCl confirms that the aqueous droplets are coated with a loosely packed monolayer of nanoparticles. The effect of varying the NaCl concentration within the droplets on their initial rate of Ostwald ripening is investigated using DLS. Finally, the long-term stability of these water-in-oil Pickering nanoemulsions is assessed using analytical centrifugation. The rate of droplet ripening can be substantially reduced by using 0.11 M NaCl instead of pure water. However, increasing the salt concentration up to 0.43 M provided no further improvement in the long-term stability of such nanoemulsions.
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16
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17
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Parker B, Derry MJ, Ning Y, Armes SP. Exploring the Upper Size Limit for Sterically Stabilized Diblock Copolymer Nanoparticles Prepared by Polymerization-Induced Self-Assembly in Non-Polar Media. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3730-3736. [PMID: 32216260 PMCID: PMC7161081 DOI: 10.1021/acs.langmuir.0c00211] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/26/2020] [Indexed: 06/10/2023]
Abstract
Reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization of benzyl methacrylate is used to prepare a series of well-defined poly(stearyl methacrylate)-poly(benzyl methacrylate) (PSMA-PBzMA) diblock copolymer nanoparticles in mineral oil at 90 °C. A relatively long PSMA54 precursor acts as a steric stabilizer block and also ensures that only kinetically trapped spheres are obtained, regardless of the target degree of polymerization (DP) for the core-forming PBzMA block. This polymerization-induced self-assembly (PISA) formulation provides good control over the particle size distribution over a wide size range (24-459 nm diameter). 1H NMR spectroscopy studies confirm that high monomer conversions (≥96%) are obtained for all PISA syntheses while transmission electron microscopy and dynamic light scattering analyses show well-defined spheres with a power-law relationship between the target PBzMA DP and the mean particle diameter. Gel permeation chromatography studies indicate a gradual loss of control over the molecular weight distribution as higher DPs are targeted, but well-defined morphologies and narrow particle size distributions can be obtained for PBzMA DPs up to 3500, which corresponds to an upper particle size limit of 459 nm. Thus, these are among the largest well-defined spheres with reasonably narrow size distributions (standard deviation ≤20%) produced by any PISA formulation. Such large spheres serve as model sterically stabilized particles for analytical centrifugation studies.
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Affiliation(s)
- Bryony
R. Parker
- Dainton Building, Department
of Chemistry, University of Sheffield, Brook
Hill, Sheffield, South Yorkshire S3 7HF, United Kingdom
| | | | - Yin Ning
- Dainton Building, Department
of Chemistry, University of Sheffield, Brook
Hill, Sheffield, South Yorkshire S3 7HF, United Kingdom
| | - Steven P. Armes
- Dainton Building, Department
of Chemistry, University of Sheffield, Brook
Hill, Sheffield, South Yorkshire S3 7HF, United Kingdom
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18
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Liu J, Xiong Z, Shen M, Banyai I, Shi X. Characterization of zwitterion-modified poly(amidoamine) dendrimers in aqueous solution via a thorough NMR investigation. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2020; 43:7. [PMID: 32006191 DOI: 10.1140/epje/i2020-11931-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Zwitterions are a class of unique molecules that can be modified onto nanomaterials to render them with antifouling properties. Here we report a thorough NMR investigation of dendrimers modified with zwitterions in terms of their structure, hydrodynamic size, and diffusion time in aqueous solution. In this present work, poly(amidoamine) (PAMAM) dendrimers of generation 5 (G5) were partially decorated with carboxybetaine acrylamide (CBAA), 2-methacryloyloxyethyl phosphorylcholine (MPC), and 1,3-propane sultone (1,3-PS), respectively with different modification degrees. The formed zwitterion-modified G5 dendrimers were characterized using NMR techniques. We show that the zwitterion modification leads to increased G5 dendrimer size in aqueous solution, suggesting that the modified zwitterions can form a hydration layer on the surface of G5 dendrimers. In addition, the hydrodynamic sizes of G5 dendrimers modified with different zwitterions but with the same degree of surface modification are discrepant depending on the type of zwitterions. The present study provides a new physical insight into the structure of zwitterion-modified G5 dendrimers by NMR techniques, which is beneficial for further design of different biomedical applications.
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Affiliation(s)
- Jinyuan Liu
- Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 201620, Shanghai, China
| | - Zhijuan Xiong
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 201620, Shanghai, China
| | - Mingwu Shen
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 201620, Shanghai, China
| | - Istvan Banyai
- Department of Physical Chemistry, University of Debrecen, H-4032, Debrecen, Hungary.
| | - Xiangyang Shi
- Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China.
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 201620, Shanghai, China.
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal.
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19
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Gibson RR, Cornel EJ, Musa OM, Fernyhough A, Armes SP. RAFT dispersion polymerisation of lauryl methacrylate in ethanol–water binary mixtures: synthesis of diblock copolymer vesicles with deformable membranes. Polym Chem 2020. [DOI: 10.1039/c9py01768b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Diblock copolymer vesicles with deformable membranes are prepared via RAFT dispersion polymerisation of lauryl methacrylate in an 80 : 20 w/w ethanol–water mixture; visible light irradiation allows facile RAFT chain-end removal from these nano-objects.
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Affiliation(s)
- R. R. Gibson
- Dainton Building
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
| | - E. J. Cornel
- Dainton Building
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
| | | | | | - S. P. Armes
- Dainton Building
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
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20
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Docherty PJ, Girou C, Derry MJ, Armes SP. Epoxy-functional diblock copolymer spheres, worms and vesicles via polymerization-induced self-assembly in mineral oil. Polym Chem 2020. [DOI: 10.1039/d0py00380h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Epoxy-functional poly(stearyl methacrylate)-poly(glycidyl methacrylate) spheres, worms or vesicles can be prepared by RAFT dispersion polymerization of glycidyl methacrylate in mineral oil at 70 °C.
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Affiliation(s)
| | - Chloé Girou
- Department of Chemistry
- The University of Sheffield
- Sheffield
- UK
| | | | - Steven P. Armes
- Department of Chemistry
- The University of Sheffield
- Sheffield
- UK
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21
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Derry MJ, Smith T, O’Hora PS, Armes SP. Block Copolymer Nanoparticles Prepared via Polymerization-Induced Self-Assembly Provide Excellent Boundary Lubrication Performance for Next-Generation Ultralow-Viscosity Automotive Engine Oils. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33364-33369. [PMID: 31430432 PMCID: PMC7007003 DOI: 10.1021/acsami.9b12472] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Core cross-linked poly(stearyl methacrylate)-poly(benzyl methacrylate)-poly(ethylene glycol dimethacrylate) [S31-B200-E20] triblock copolymer nanoparticles were synthesized directly in an industrial mineral oil via polymerization-induced self-assembly (PISA). Gel permeation chromatography analysis of the S31-B200 diblock copolymer precursor chains indicated a well-controlled reversible addition-fragmentation chain transfer dispersion polymerization, while transmission electron microscopy, dynamic light-scattering (DLS), and small-angle X-ray scattering studies indicated the formation of well-defined spheres. Moreover, DLS studies performed in THF, which is a common solvent for the S and B blocks, confirmed successful covalent stabilization because well-defined solvent-swollen spheres were obtained under such conditions. Tribology experiments using a mini-traction machine (MTM) indicated that 0.50% w/w dispersions of S31-B200-E20 spheres dramatically reduce the friction coefficient of base oil within the boundary lubrication regime. Given their efficient and straightforward PISA synthesis at high solids, such nanoparticles offer new opportunities for the formulation of next-generation ultralow-viscosity automotive engine oils.
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Affiliation(s)
- Matthew J. Derry
- Dainton
Building, Department of Chemistry, University
of Sheffield, Brook Hill, Sheffield, S3 7HF South Yorkshire, United Kingdom
- E-mail: . Phone: +44(0)114-222-9503
| | - Timothy Smith
- Lubrizol
Ltd., The Knowle, Nether
Lane, Hazelwood, Derbyshire DE56 4AN, United Kingdom
| | - Paul S. O’Hora
- Lubrizol
Ltd., The Knowle, Nether
Lane, Hazelwood, Derbyshire DE56 4AN, United Kingdom
| | - Steven P. Armes
- Dainton
Building, Department of Chemistry, University
of Sheffield, Brook Hill, Sheffield, S3 7HF South Yorkshire, United Kingdom
- E-mail: . Phone: +44(0)114-222-9342
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22
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Penfold NJW, Yeow J, Boyer C, Armes SP. Emerging Trends in Polymerization-Induced Self-Assembly. ACS Macro Lett 2019; 8:1029-1054. [PMID: 35619484 DOI: 10.1021/acsmacrolett.9b00464] [Citation(s) in RCA: 344] [Impact Index Per Article: 68.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In this Perspective, we summarize recent progress in polymerization-induced self-assembly (PISA) for the rational synthesis of block copolymer nanoparticles with various morphologies. Much of the PISA literature has been based on thermally initiated reversible addition-fragmentation chain transfer (RAFT) polymerization. Herein, we pay particular attention to alternative PISA protocols, which allow the preparation of nanoparticles with improved control over copolymer morphology and functionality. For example, initiation based on visible light, redox chemistry, or enzymes enables the incorporation of sensitive monomers and fragile biomolecules into block copolymer nanoparticles. Furthermore, PISA syntheses and postfunctionalization of the resulting nanoparticles (e.g., cross-linking) can be conducted sequentially without intermediate purification by using various external stimuli. Finally, PISA formulations have been optimized via high-throughput polymerization and recently evaluated within flow reactors for facile scale-up syntheses.
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Affiliation(s)
- Nicholas J. W. Penfold
- Department of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, United Kingdom
| | - Jonathan Yeow
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, and Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales, 2051, Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, and Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales, 2051, Australia
| | - Steven P. Armes
- Department of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, United Kingdom
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23
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Li S, Nie H, Gu S, Han Z, Han G, Zhang W. Synthesis of Multicompartment Nanoparticles of ABC Miktoarm Star Polymers by Seeded RAFT Dispersion Polymerization. ACS Macro Lett 2019; 8:783-788. [PMID: 35619511 DOI: 10.1021/acsmacrolett.9b00371] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Polymeric multicompartment nanoparticles (MCNs) of μ-ABC miktoarm star polymers composed of poly(N,N-dimethylacrylamide) (PDMA), poly(butyl methacrylate) (PBMA), and polystyrene (PS) were synthesized by Cu(I)-catalyzed click reaction and seeded RAFT dispersion polymerization. The synthesized MCNs have a solvophobic PBMA core with separate segregated PS microdomains and a solvophilic PDMA corona. The size and/or morphology of MCNs are correlative to the length of PDMA, PBMA, and PS segments. Ascribed to the characteristic structure, MCNs of μ-DBS can decrease interfacial tension in n-hexane/water, which is much superior to linear diblock copolymer nanoassemblies.
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Affiliation(s)
- Shenzhen Li
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Huijun Nie
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Song Gu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhongqiang Han
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co., Ltd, Beijing 100123, China
| | - Guang Han
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co., Ltd, Beijing 100123, China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
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24
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Liu J, Xiong Z, Zhang J, Peng C, Klajnert-Maculewicz B, Shen M, Shi X. Zwitterionic Gadolinium(III)-Complexed Dendrimer-Entrapped Gold Nanoparticles for Enhanced Computed Tomography/Magnetic Resonance Imaging of Lung Cancer Metastasis. ACS APPLIED MATERIALS & INTERFACES 2019; 11:15212-15221. [PMID: 30964632 DOI: 10.1021/acsami.8b21679] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Design of dual mode or multimode contrast agents or nanoplatforms with antifouling properties is crucial for improved cancer diagnosis since the antifouling materials are able to escape the clearance of the reticuloendothelial system with improved pharmacokinetics. Herein, we present the creation of zwitterionic gadolinium(III) (Gd(III))-complexed dendrimer-entrapped gold nanoparticles (Au DEN) for enhanced dual mode computed tomography (CT)/magnetic resonance (MR) imaging of lung cancer metastasis. In the present work, poly(amidoamine) (PAMAM) dendrimers of generation 5 were partially decorated with carboxybetanie acrylamide (CBAA), 2-methacryloyloxyethyl phosphorylcholine (MPC), and 1,3-propane sultone (1,3-PS), respectively at different degrees, then used to entrap Au NPs within their interiors, and finally acetylated to cover their remaining amine termini. Through protein resistance, macrophage cellular uptake, and pharmacokinetics assays, we show that zwitterionic Au DEN modified with 1,3-PS exhibit the best antifouling property with the longest half-decay time (37.07 h) when compared to the CBAA- and MPC-modified Au DEN. Furthermore, with the optimized zwitterion type, we then prepared zwitterionic Gd(III)-loaded Au DEN modified with arginine-glycine-aspartic acid peptide for targeted dual mode CT/MR imaging of a lung cancer metastasis model. We disclose that the designed multifunctional Au DEN having an Au core size of 2.7 nm and a surface potential of 7.6 ± 0.9 mV display a good X-ray attenuation property, relatively high r1 relaxivity (13.17 mM s-1), acceptable cytocompatibility, and targeting specificity to αvβ3 integrin-expressing cancer cells and enable effective dual mode CT/MR imaging of a lung cancer metastasis model in vivo. The developed multifunctional zwitterion-functionalized Au DEN may be potentially adopted as an effective nanoprobe for enhanced dual-modal CT/MR imaging of other cancer types.
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Affiliation(s)
- Jinyuan Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , P. R. China
| | - Zhijuan Xiong
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , P. R. China
| | - Jiulong Zhang
- Department of Radiology, Shanghai Public Health Clinical Center , Fudan University , Shanghai 201508 , P. R. China
| | - Chen Peng
- Department of Radiology, Shanghai Public Health Clinical Center , Fudan University , Shanghai 201508 , P. R. China
- Cancer Center, Shanghai Tenth People's Hospital , Tongji University School of Medicine , Shanghai 200072 , P. R. China
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection , University of Lodz , 141/143 Pomorska St. , 90-236 Lodz , Poland
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , P. R. China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , P. R. China
- CQM-Centro de Química da Madeira , Universidade da Madeira, Campus da Penteada , 9020-105 Funchal , Portugal
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25
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Guan S, Deng Z, Huang T, Wen W, Zhao Y, Chen A. Light-Triggered Reversible Slimming of Azobenzene-Containing Wormlike Nanoparticles Synthesized by Polymerization-Induced Self-Assembly for Nanofiltration Switches. ACS Macro Lett 2019; 8:460-465. [PMID: 35651132 DOI: 10.1021/acsmacrolett.9b00146] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Photoresponsive wormlike block copolymer nanoparticles (NPs) have potential applications in versatile fields, but their preparation suffers from narrow worm phase region and tedious approaches. In this work, azobenzene-containing wormlike NPs based on poly(methylacrylic acid)-b-poly(4-((4-butylphenyl)diazenyl)phenyl methacrylate) are prepared via polymerization-induced self-assembly at high solids concentration in ethanol. The pure wormlike NPs occupy a remarkably broad region in the morphological phase diagram because of the rigid nature of the core-forming block. These wormlike NPs expand resulting from trans-cis transformation upon UV irradiation, and slim near to the original state via visible light irradiation. The diameter and its variation amplitude of worms increase with the chain length of core-forming block. Moreover, a nanofiltration switch for rhodamine B is assembled to illustrate one of its potential applications by remote trigger using light.
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Affiliation(s)
| | | | | | | | - Yongbin Zhao
- Shandong Oubo New Material Co. Ltd., Shandong 257088, People’s Republic of China
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26
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Lim J, Matsuoka H, Yusa SI, Saruwatari Y. Temperature-Responsive Behavior of Double Hydrophilic Carboxy-Sulfobetaine Block Copolymers and Their Self-Assemblies in Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1571-1582. [PMID: 30558410 DOI: 10.1021/acs.langmuir.8b02952] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The block copolymer poly(2-((2-(methacryloyloxy)ethyl)dimethylammonio)acetate)- b-poly(3-( N-(2-metharyloylethyl)- N, N-dimethylammonio)propanesulfonate) (PGLBT- b-PSPE) was synthesized by reversible addition-fragmentation chain transfer (RAFT) technique under precise control. The PGLBT- b-PSPE block copolymers showed upper critical solution temperature (UCST) behavior originating from PSPE moieties. Unlike PSPE homopolymers, the transmittance change with temperature was gradual, and unexpected retardation or slight changes in a reverse direction were found at the intermediate stage. Light scattering and 1H NMR studies proved that the block copolymers formed spherical micelles that were composed of a PSPE core and PGLBT shell around room temperature and lower temperatures, and slowly disassociated with temperature increase. During the transition, fast (small particle) and slow (large particle) diffusive modes were detected by dynamic light scattering (DLS), which implied that the unimers were escaping from the self-assembled structure and swollen micelles, respectively. At sufficiently high temperatures where the solutions became almost transparent, the slow mode eventually disappeared, and only the fast mode remained. In addition, once the polymeric particles are formed, the size did not vary much with additional cooling. The transition point and the pattern of transmittance alteration were dependent on the degree of polymerization and the [PGLBT]:[PSPE] ratios; more PGLBT made the block copolymer less responsive to temperature and led the cloud point to lower degrees. However, random copolymers PGLBT- r-PSPE did not show any temperature-responsivity, and even small amount of GLBTs (10%) distributed in a PSPE chain significantly suppressed the transition.
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Affiliation(s)
- Jongmin Lim
- Department of Polymer Chemistry , Kyoto University , Katsura , Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Hideki Matsuoka
- Department of Polymer Chemistry , Kyoto University , Katsura , Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Shin-Ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering , University of Hyogo , 2167 Shosha , Himeji , Hyogo 671-2280 , Japan
| | - Yoshiyuki Saruwatari
- Osaka Organic Chemical Industry Ltd. , 7-20 Azuchi-machi, 1chome , Chuo-ku, Osaka 541-0052 , Japan
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27
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Hofman AH, Fokkink R, Kamperman M. A mild and quantitative route towards well-defined strong anionic/hydrophobic diblock copolymers: synthesis and aqueous self-assembly. Polym Chem 2019. [DOI: 10.1039/c9py01227c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Well-defined hydrophobic/strong anionic diblock copolymers were synthesized through a protected hydrophobic intermediate. Their self-assembly in aqueous solution was subsequently studied.
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Affiliation(s)
- Anton H. Hofman
- Physical Chemistry and Soft Matter
- Wageningen University
- 6708 WE Wageningen
- The Netherlands
- Polymer Science
| | - Remco Fokkink
- Physical Chemistry and Soft Matter
- Wageningen University
- 6708 WE Wageningen
- The Netherlands
| | - Marleen Kamperman
- Polymer Science
- Zernike Institute for Advanced Materials
- University of Groningen
- 9747 AG Groningen
- The Netherlands
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28
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Docherty PJ, Derry MJ, Armes SP. RAFT dispersion polymerization of glycidyl methacrylate for the synthesis of epoxy-functional block copolymer nanoparticles in mineral oil. Polym Chem 2019. [DOI: 10.1039/c8py01584h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Epoxy-functional poly(stearyl methacrylate)-poly(glycidyl methacrylate) (PSMA-PGlyMA) diblock copolymer nanoparticles are synthesized via reversible addition–fragmentation chain transfer (RAFT) dispersion polymerization of glycidyl methacrylate (GlyMA) in mineral oil at 70 °C.
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Affiliation(s)
| | | | - Steven P. Armes
- Department of Chemistry
- The University of Sheffield
- Sheffield
- UK
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29
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Chidanguro T, Ghimire E, Liu CH, Simon YC. Polymersomes: Breaking the Glass Ceiling? SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802734. [PMID: 30369045 DOI: 10.1002/smll.201802734] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/05/2018] [Indexed: 06/08/2023]
Abstract
Polymer vesicles, also known as polymersomes, have garnered a lot of interest even before the first report of their fabrication in the mid-1990s. These capsules have found applications in areas such as drug delivery, diagnostics and cellular models, and are made via the self-assembly of amphiphilic block copolymers, predominantly with soft, rubbery hydrophobic segments. Comparatively, and despite their remarkable impermeability, glassy polymersomes (GPs) have been less pervasive due to their rigidity, lack of biodegradability and more restricted fabrication strategies. GPs are now becoming more prominent, thanks to their ability to undergo stable shape-change (e.g., into non-spherical morphologies) as a response to a predetermined trigger (e.g., light, solvent). The basics of block copolymer self-assembly with an emphasis on polymersomes and GPs in particular are reviewed here. The principles and advantages of shape transformation of GPs as well as their general usefulness are also discussed, together with some of the challenges and opportunities currently facing this area.
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Affiliation(s)
- Tamuka Chidanguro
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, 39406, MS, USA
| | - Elina Ghimire
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, 39406, MS, USA
| | - Cheyenne H Liu
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, 39406, MS, USA
| | - Yoan C Simon
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, 39406, MS, USA
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30
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Lovett JR, Derry MJ, Yang P, Hatton FL, Warren NJ, Fowler PW, Armes SP. Can percolation theory explain the gelation behavior of diblock copolymer worms? Chem Sci 2018; 9:7138-7144. [PMID: 30310636 PMCID: PMC6137452 DOI: 10.1039/c8sc02406e] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/25/2018] [Indexed: 12/20/2022] Open
Abstract
It is well known that polymerization-induced self-assembly (PISA) offers an efficient synthetic route for the production of highly anisotropic diblock copolymer worms. When prepared in aqueous media, such worms form thermoresponsive free-standing hydrogels that are (i) readily sterilizable, (ii) can act as a 3D matrix for the culture of normal mammalian cells and (iii) can induce stasis in human stem cell colonies. Herein we critically examine the gelation behavior of two types of diblock copolymer worms in terms of recent advances in percolation theory for rigid rods, which explicitly account for the effect of rod length polydispersity. More specifically, we use small-angle X-ray scattering (SAXS) to determine the weight-average worm contour length, L w, and the mean worm cross-sectional radius, R. This approach enables a direct comparison to be made between the theoretical critical worm volume fraction, φ c, required for gelation and the experimental values indicated by rheological measurements and tube inversion experiments. Given that these diblock copolymer worms are relatively flexible rather than truly rod-like, reasonably good agreement between these two parameters is observed, particularly for shorter, relatively stiff worms. For longer, more flexible worms a proportionality constant of approximately two is required to reconcile theory with experimental values for φ c. These findings are expected to have important implications for the aqueous gelation behavior exhibited by various other anisotropic nanoparticles, such as cellulose nanocrystals and semicrystalline block copolymer rods, and also fibril-forming small molecule (e.g. dipeptide) gelators.
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Affiliation(s)
- Joseph R Lovett
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK .
| | - Matthew J Derry
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK .
| | - Pengcheng Yang
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK .
| | - Fiona L Hatton
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK .
| | - Nicholas J Warren
- School of Chemical and Process Engineering , University of Leeds , Leeds , West Yorkshire LS2 9JT , UK
| | - Patrick W Fowler
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK .
| | - Steven P Armes
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK .
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31
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Zhang Y, Cao M, Han G, Guo T, Ying T, Zhang W. Topology Affecting Block Copolymer Nanoassemblies: Linear Block Copolymers versus Star Block Copolymers under PISA Conditions. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01121] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | | | - Guang Han
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co., Ltd., Beijing 100123, China
| | | | - Tengyuan Ying
- Institute of Semiconductor
Technology of Tianjin, Tianjin, China
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32
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Busatto N, Stolojan V, Shaw M, Keddie JL, Roth PJ. Reactive Polymorphic Nanoparticles: Preparation via Polymerization-Induced Self-Assembly and Postsynthesis Thiol-para
-Fluoro Core Modification. Macromol Rapid Commun 2018; 40:e1800346. [DOI: 10.1002/marc.201800346] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/08/2018] [Indexed: 01/20/2023]
Affiliation(s)
- Nicolas Busatto
- Department of Chemistry; University of Surrey; Guildford Surrey GU2 7XH UK
| | - Vlad Stolojan
- Advanced Technology Institute; University of Surrey; Guildford Surrey GU2 7XH UK
| | - Michael Shaw
- National Physical Laboratory; Hampton Road; Teddington Middlesex TW11 0LW UK
- Department of Computer Science; University College London; London WC1 6BT UK
| | - Joseph L. Keddie
- Department of Physics; University of Surrey; Guildford Surrey GU2 7XH UK
| | - Peter J. Roth
- Department of Chemistry; University of Surrey; Guildford Surrey GU2 7XH UK
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33
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He J, Xu Q, Tan J, Zhang L. Ketone-Functionalized Polymer Nano-Objects Prepared via Photoinitiated Polymerization-Induced Self-Assembly (Photo-PISA) Using a Poly(diacetone acrylamide)-Based Macro-RAFT Agent. Macromol Rapid Commun 2018; 40:e1800296. [DOI: 10.1002/marc.201800296] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/23/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Jun He
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
| | - Qin Xu
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
| | - Jianbo Tan
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter; Guangdong University of Technology; Guangzhou 510006 China
| | - Li Zhang
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter; Guangdong University of Technology; Guangzhou 510006 China
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34
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György C, Lovett JR, Penfold NJW, Armes SP. Epoxy-Functional Sterically Stabilized Diblock Copolymer Nanoparticles via RAFT Aqueous Emulsion Polymerization: Comparison of Two Synthetic Strategies. Macromol Rapid Commun 2018; 40:e1800289. [DOI: 10.1002/marc.201800289] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/17/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Csilla György
- Dainton Building; Department of Chemistry; University of Sheffield; Brook Hill Sheffield South Yorkshire S3 7HF UK
| | - Joseph R. Lovett
- Dainton Building; Department of Chemistry; University of Sheffield; Brook Hill Sheffield South Yorkshire S3 7HF UK
| | - Nicholas J. W. Penfold
- Dainton Building; Department of Chemistry; University of Sheffield; Brook Hill Sheffield South Yorkshire S3 7HF UK
| | - Steven P. Armes
- Dainton Building; Department of Chemistry; University of Sheffield; Brook Hill Sheffield South Yorkshire S3 7HF UK
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35
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Zhang Y, Han G, Cao M, Guo T, Zhang W. Influence of Solvophilic Homopolymers on RAFT Polymerization-Induced Self-Assembly. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00690] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | - Guang Han
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co., Ltd., Beijing, China
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36
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He J, Liu D, Tan J, Zhang L. Sodium Bis(acyl)phosphane oxide (SBAPO): An efficient photoinitiator for blue light initiated aqueous RAFT dispersion polymerization. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.04.071] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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Derry MJ, Mykhaylyk OO, Ryan AJ, Armes SP. Thermoreversible crystallization-driven aggregation of diblock copolymer nanoparticles in mineral oil. Chem Sci 2018; 9:4071-4082. [PMID: 29780536 PMCID: PMC5944243 DOI: 10.1039/c8sc00762d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 04/01/2018] [Indexed: 12/18/2022] Open
Abstract
A poly(behenyl methacrylate)37 (PBeMA37) macromolecular chain transfer agent is utilized for the reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization of benzyl methacrylate (BzMA) directly in mineral oil at 90 °C. Polymerization-induced self-assembly (PISA) occurs under these conditions, yielding a series of sterically-stabilized PBeMA37-PBzMA x diblock copolymer spheres of tunable diameter as confirmed by dynamic light scattering (DLS) and transmission electron microscopy (TEM) studies. Rheological studies indicate that a relatively transparent, free-flowing, concentrated dispersion of non-interacting 32 nm PBeMA37-PBzMA100 spheres at 50 °C forms a turbid, paste-like dispersion on cooling to 20 °C. Turbidimetry and differential scanning calorimetry (DSC) studies conducted on solutions of PBeMA37 homopolymer in mineral oil suggest that this switchable colloidal stability is linked to crystallization-induced phase separation exhibited by this stabilizer block. Indeed, variable-temperature small-angle X-ray scattering (SAXS) indicates that a loose mass fractal network of strongly interacting spheres is formed on cooling to 20 °C, which accounts for this thermoreversible sol-gel transition. Moreover, SAXS, DSC and wide-angle X-ray scattering (WAXS) analyses indicate that the behenyl (C22H45) side-chains first form crystalline domains comprising adjacent stabilizer chains within individual spherical nanoparticles, with subsequent crystallization between neighboring nanoparticles leading to the formation of the mass fractal aggregates.
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Affiliation(s)
- Matthew J Derry
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ; ;
| | - Oleksandr O Mykhaylyk
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ; ;
| | - Anthony J Ryan
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ; ;
| | - Steven P Armes
- Department of Chemistry , The University of Sheffield , Dainton Building, Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ; ;
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38
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Tan J, Li X, Zeng R, Liu D, Xu Q, He J, Zhang Y, Dai X, Yu L, Zeng Z, Zhang L. Expanding the Scope of Polymerization-Induced Self-Assembly: Z-RAFT-Mediated Photoinitiated Dispersion Polymerization. ACS Macro Lett 2018; 7:255-262. [PMID: 35610903 DOI: 10.1021/acsmacrolett.8b00035] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
In this communication, we developed the first well-controlled Z-RAFT (RAFT = reversible addition-fragmentation chain transfer) mediated polymerization-induced self-assembly (PISA) formulation based on photoinitiated RAFT dispersion polymerization of tert-butyl acrylate (tBA) in ethanol/water (60/40, w/w) at room temperature using a Z-type macromolecular chain transfer agent (macro-CTA). Polymerizations proceeded rapidly via the exposure of visible-light irradiation (405 nm, 0.45 mW/cm2) with high monomer conversion (>95%) being achieved within 1 h. A variety of polymer nano-objects (spheres, worms, and vesicles) with narrow molar mass distributions were prepared by this Z-RAFT mediated PISA formulation. Silver nanoparticles were loaded with the vesicles via in situ reduction, which can be used as a catalyst for the reduction of methylene blue (MB) in the presence of NaBH4. Finally, gel permeation chromatography (GPC) analysis demonstrated that the corona block and the core-forming block could be cleaved by treating with excess initiator. This novel PISA formulation will greatly expand the scope of PISA and provide more mechanistic insights into the PISA research.
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Affiliation(s)
- Jianbo Tan
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
| | - Xueliang Li
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Ruiming Zeng
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Dongdong Liu
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Qin Xu
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Jun He
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Yuxuan Zhang
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaocong Dai
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Liangliang Yu
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhaohua Zeng
- School
of Materials Science and Engineering, Sun-Yat Sen University, Guangzhou 510275, China
| | - Li Zhang
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
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39
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Deng R, Ning Y, Jones ER, Cunningham VJ, Penfold NJW, Armes SP. Stimulus-responsive block copolymer nano-objects and hydrogels via dynamic covalent chemistry. Polym Chem 2017; 8:5374-5380. [PMID: 29308094 PMCID: PMC5735357 DOI: 10.1039/c7py01242j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 07/28/2017] [Indexed: 01/09/2023]
Abstract
Herein we demonstrate that dynamic covalent chemistry can be used to induce reversible morphological transitions in block copolymer nano-objects and hydrogels. Poly(glycerol monomethacrylate)-poly(2-hydroxypropyl methacrylate) (PGMA-PHPMA) diblock copolymer nano-objects (vesicles or worms) were prepared via polymerization-induced self-assembly. Addition of 4-carboxyphenylboronic acid (CPBA) leads to the formation of phenylboronate ester bonds with the 1,2-diol pendent groups on the hydrophilic PGMA stabilizer chains; such binding causes a subtle reduction in the packing parameter, which in turn induces either vesicle-to-worm or worm-to-sphere transitions. Moreover, CPBA binding is pH-dependent, so reversible transitions can be achieved by switching the solution pH, with relatively high copolymer concentrations leading to associated (de)gelation. This distinguishes these new physical hydrogels from the covalently cross-linked gels prepared using dynamic covalent chemistry reported in the literature.
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Affiliation(s)
- Renhua Deng
- Dainton Building , Department of Chemistry , The University of Sheffield , Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ;
| | - Yin Ning
- Dainton Building , Department of Chemistry , The University of Sheffield , Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ;
| | - Elizabeth R Jones
- Dainton Building , Department of Chemistry , The University of Sheffield , Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ;
| | - Victoria J Cunningham
- Dainton Building , Department of Chemistry , The University of Sheffield , Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ;
| | - Nicholas J W Penfold
- Dainton Building , Department of Chemistry , The University of Sheffield , Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ;
| | - Steven P Armes
- Dainton Building , Department of Chemistry , The University of Sheffield , Brook Hill , Sheffield , South Yorkshire S3 7HF , UK . ;
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40
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Yeow J, Boyer C. Photoinitiated Polymerization-Induced Self-Assembly (Photo-PISA): New Insights and Opportunities. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1700137. [PMID: 28725534 PMCID: PMC5514979 DOI: 10.1002/advs.201700137] [Citation(s) in RCA: 264] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/20/2017] [Indexed: 05/17/2023]
Abstract
The polymerization-induced self-assembly (PISA) process is a useful synthetic tool for the efficient synthesis of polymeric nanoparticles of different morphologies. Recently, studies on visible light initiated PISA processes have offered a number of key research opportunities that are not readily accessible using traditional thermally initiated systems. For example, visible light mediated PISA (Photo-PISA) enables a high degree of control over the dispersion polymerization process by manipulation of the wavelength and intensity of incident light. In some cases, the final nanoparticle morphology of a single formulation can be modulated by simple manipulation of these externally controlled parameters. In addition, temporal (and in principle spatial) control over the Photo-PISA process can be achieved in most cases. Exploitation of the mild room temperature polymerizations conditions can enable the encapsulation of thermally sensitive therapeutics to occur without compromising the polymerization rate and their activities. Finally, the Photo-PISA process can enable further mechanistic insights into the morphological evolution of nanoparticle formation such as the effects of temperature on the self-assembly process. The purpose of this mini-review is therefore to examine some of these recent advances that have been made in Photo-PISA processes, particularly in light of the specific advantages that may exist in comparison with conventional thermally initiated systems.
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Affiliation(s)
- Jonathan Yeow
- School of Chemical EngineeringCentre for Advanced Macromolecular Design (CAMD) and Australian Centre for Nanomedicine (ACN)UNSW SydneySydneyNSW2052Australia
| | - Cyrille Boyer
- School of Chemical EngineeringCentre for Advanced Macromolecular Design (CAMD) and Australian Centre for Nanomedicine (ACN)UNSW SydneySydneyNSW2052Australia
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41
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Tan J, Liu D, Huang C, Li X, He J, Xu Q, Zhang L. Photoinitiated Polymerization-Induced Self-Assembly of Glycidyl Methacrylate for the Synthesis of Epoxy-Functionalized Block Copolymer Nano-Objects. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700195] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 04/27/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Jianbo Tan
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter; Guangzhou 510006 China
| | - Dongdong Liu
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
| | - Chundong Huang
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
| | - Xueliang Li
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
| | - Jun He
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
| | - Qin Xu
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
| | - Li Zhang
- Department of Polymeric Materials and Engineering; School of Materials and Energy; Guangdong University of Technology; Guangzhou 510006 China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter; Guangzhou 510006 China
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42
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Blackman LD, Doncom KEB, Gibson MI, O'Reilly RK. Comparison of photo- and thermally initiated polymerization-induced self-assembly: a lack of end group fidelity drives the formation of higher order morphologies. Polym Chem 2017; 8:2860-2871. [PMID: 29225706 PMCID: PMC5718300 DOI: 10.1039/c7py00407a] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 04/07/2017] [Indexed: 12/15/2022]
Abstract
Polymerization-induced self-assembly (PISA) is an emerging industrially relevant technology, which allows the preparation of defined and predictable polymer self-assemblies with a wide range of morphologies. In recent years, interest has turned to photoinitiated PISA processes, which show markedly accelerated reaction kinetics and milder conditions, thereby making it an attractive alternative to thermally initiated PISA. Herein, we attempt to elucidate the differences between these two initiation methods using isothermally derived phase diagrams of a well-documented poly(ethylene glycol)-b-(2-hydroxypropyl methacrylate) (PEG-b-HPMA) PISA system. By studying the influence of the intensity of the light source used, as well as an investigation into the thermodynamically favorable morphologies, the factors dictating differences in the obtained morphologies when comparing photo- and thermally initiated PISA were explored. Our findings indicate that differences in a combination of both reaction kinetics and end group fidelity led to the observed discrepencies between the two techniques. We find that the loss of the end group in photoinitiated PISA drives the formation of higher order structures and that a morphological transition from worms to unilamellar vesicles could be induced by extended periods of light and heat irradiation. Our findings demonstrate that PISA of identical block copolymers by the two different initiation methods can lead to structures that are both chemically and morphologically distinct.
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Affiliation(s)
- Lewis D. Blackman
- Dept of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK . ;
| | - Kay E. B. Doncom
- Dept of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK . ;
| | - Matthew I. Gibson
- Dept of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK . ;
- Warwick Medical School , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK
| | - Rachel K. O'Reilly
- Dept of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK . ;
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43
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Tan J, Huang C, Liu D, Li X, He J, Xu Q, Zhang L. Polymerization-Induced Self-Assembly of Homopolymer and Diblock Copolymer: A Facile Approach for Preparing Polymer Nano-Objects with Higher-Order Morphologies. ACS Macro Lett 2017; 6:298-303. [PMID: 35650906 DOI: 10.1021/acsmacrolett.7b00134] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Polymerization-induced self-assembly of homopolymer and diblock copolymer using a binary mixture of small chain transfer agent (CTA) and macromolecular chain transfer agent (macro-CTA) is reported. With this system, homopolymer and diblock copolymer were formed and chain extended at the same time to form polymer nano-objects. The molar ratio of homopolymer and diblock copolymer had a significant effect on the morphology of the polymer nano-objects. Porous vesicles, porous nanospheres, and micron-sized particles with highly porous inner structure were prepared by this method. We expect that this method will greatly expand the promise of polymerization-induced self-assembly for the synthesis of a range of polymer nano-objects with unique morphologies.
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Affiliation(s)
- Jianbo Tan
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
| | - Chundong Huang
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Dongdong Liu
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Xueliang Li
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Jun He
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Qin Xu
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Li Zhang
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
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44
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Derry MJ, Mykhaylyk OO, Armes SP. A Vesicle-to-Worm Transition Provides a New High-Temperature Oil Thickening Mechanism. Angew Chem Int Ed Engl 2017; 56:1746-1750. [PMID: 28071844 PMCID: PMC5396375 DOI: 10.1002/anie.201609365] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 12/21/2016] [Indexed: 11/23/2022]
Abstract
Diblock copolymer vesicles are prepared via RAFT dispersion polymerization directly in mineral oil. Such vesicles undergo a vesicle-to-worm transition on heating to 150 °C, as judged by TEM and SAXS. Variable-temperature 1 H NMR spectroscopy indicates that this transition is the result of surface plasticization of the membrane-forming block by hot solvent, effectively increasing the volume fraction of the stabilizer block and so reducing the packing parameter for the copolymer chains. The rheological behavior of a 10 % w/w copolymer dispersion in mineral oil is strongly temperature-dependent: the storage modulus increases by five orders of magnitude on heating above the critical gelation temperature of 135 °C, as the non-interacting vesicles are converted into weakly interacting worms. SAXS studies indicate that, on average, three worms are formed per vesicle. Such vesicle-to-worm transitions offer an interesting new mechanism for the high-temperature thickening of oils.
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Affiliation(s)
- Matthew J. Derry
- Dainton Building, Department of ChemistryThe University of SheffieldSheffield, South Yorkshire, S3 7HFUK
| | - Oleksandr O. Mykhaylyk
- Dainton Building, Department of ChemistryThe University of SheffieldSheffield, South Yorkshire, S3 7HFUK
| | - Steven P. Armes
- Dainton Building, Department of ChemistryThe University of SheffieldSheffield, South Yorkshire, S3 7HFUK
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45
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Figg CA, Carmean RN, Bentz KC, Mukherjee S, Savin DA, Sumerlin BS. Tuning Hydrophobicity To Program Block Copolymer Assemblies from the Inside Out. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02754] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- C. Adrian Figg
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
| | - R. Nicholas Carmean
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
| | - Kyle C. Bentz
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
| | - Soma Mukherjee
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
| | - Daniel A. Savin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
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46
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Derry MJ, Mykhaylyk OO, Armes SP. A Vesicle-to-Worm Transition Provides a New High-Temperature Oil Thickening Mechanism. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201609365] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Matthew J. Derry
- Dainton Building, Department of Chemistry; The University of Sheffield; Sheffield, South Yorkshire, S3 7HF UK
| | - Oleksandr O. Mykhaylyk
- Dainton Building, Department of Chemistry; The University of Sheffield; Sheffield, South Yorkshire, S3 7HF UK
| | - Steven P. Armes
- Dainton Building, Department of Chemistry; The University of Sheffield; Sheffield, South Yorkshire, S3 7HF UK
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47
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Chen SL, Shi PF, Zhang WQ. In situ synthesis of block copolymer nano-assemblies by polymerization-induced self-assembly under heterogeneous condition. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1907-8] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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48
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Yuan B, He X, Qu Y, Gao C, Eiser E, Zhang W. In situ synthesis of a self-assembled AB/B blend of poly(ethylene glycol)-b-polystyrene/polystyrene by dispersion RAFT polymerization. Polym Chem 2017. [DOI: 10.1039/c7py00339k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A diblock-copolymer/homopolymer self-assembled blend was synthesized through dispersion RAFT polymerization, and its morphology changed with a decreasing ratio of diblock-copolymer/homopolymer.
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Affiliation(s)
- Bing Yuan
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Xin He
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Yaqing Qu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Chengqiang Gao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Erika Eiser
- Cavendish Laboratory
- University of Cambridge
- Cambridge CB3 0HE
- UK
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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49
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Tan J, He J, Li X, Xu Q, Huang C, Liu D, Zhang L. Rapid synthesis of well-defined all-acrylic diblock copolymer nano-objects via alcoholic photoinitiated polymerization-induced self-assembly (photo-PISA). Polym Chem 2017. [DOI: 10.1039/c7py01652b] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A series of well-defined all-acrylic poly(hydroxyethyl acrylate)-poly(isobornyl acrylate) (PHEA-PIBOA) diblock copolymer nano-objects were prepared by photoinitiated polymerization-induced self-assembly (photo-PISA).
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Affiliation(s)
- Jianbo Tan
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Jun He
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Xueliang Li
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Qin Xu
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Chundong Huang
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Dongdong Liu
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Li Zhang
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
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Penfold NJW, Lovett JR, Verstraete P, Smets J, Armes SP. Stimulus-responsive non-ionic diblock copolymers: protonation of a tertiary amine end-group induces vesicle-to-worm or vesicle-to-sphere transitions. Polym Chem 2017. [DOI: 10.1039/c6py01076h] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Morpholine-functionalised poly(glycerol monomethacrylate)-poly(2-hydroxypropyl methacrylate) diblock copolymer vesicles are transformed into worms or spheres on lowering the solution pH.
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Affiliation(s)
| | | | | | - Johan Smets
- Procter & Gamble
- Eurocor NV/SA
- 1853 Strombeek-Bever
- Belgium
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