1
|
Zhang S, Li R, An Z. Degradable Block Copolymer Nanoparticles Synthesized by Polymerization-Induced Self-Assembly. Angew Chem Int Ed Engl 2024; 63:e202315849. [PMID: 38155097 DOI: 10.1002/anie.202315849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/20/2023] [Accepted: 12/28/2023] [Indexed: 12/30/2023]
Abstract
Polymerization-induced self-assembly (PISA) combines polymerization and in situ self-assembly of block copolymers in one system and has become a widely used method to prepare block copolymer nanoparticles at high concentrations. The persistence of polymers in the environment poses a huge threat to the ecosystem and represents a significant waste of resources. There is an urgent need to develop novel chemical approaches to synthesize degradable polymers. To meet with this demand, it is crucial to install degradability into PISA nanoparticles. Most recently, degradable PISA nanoparticles have been synthesized by introducing degradation mechanisms into either shell-forming or core-forming blocks. This Minireview summarizes the development in degradable block copolymer nanoparticles synthesized by PISA, including shell-degradable, core-degradable, and all-degradable nanoparticles. Future development will benefit from expansion of polymerization techniques with new degradation mechanisms and adaptation of high-throughput approaches for both PISA syntheses and degradation studies.
Collapse
Affiliation(s)
- Shudi Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Ruoyu Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Zesheng An
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130012, China
| |
Collapse
|
2
|
György C, Armes SP. Recent Advances in Polymerization-Induced Self-Assembly (PISA) Syntheses in Non-Polar Media. Angew Chem Int Ed Engl 2023; 62:e202308372. [PMID: 37409380 PMCID: PMC10952376 DOI: 10.1002/anie.202308372] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/05/2023] [Accepted: 07/05/2023] [Indexed: 07/07/2023]
Abstract
It is well-known that polymerization-induced self-assembly (PISA) is a powerful and highly versatile technique for the rational synthesis of colloidal dispersions of diblock copolymer nanoparticles, including spheres, worms or vesicles. PISA can be conducted in water, polar solvents or non-polar media. In principle, the latter formulations offer a wide range of potential commercial applications. However, there has been just one review focused on PISA syntheses in non-polar media and this prior article was published in 2016. The purpose of the current review article is to summarize the various advances that have been reported since then. In particular, PISA syntheses conducted using reversible addition-fragmentation chain-transfer (RAFT) polymerization in various n-alkanes, poly(α-olefins), mineral oil, low-viscosity silicone oils or supercritical CO2 are discussed in detail. Selected formulations exhibit thermally induced worm-to-sphere or vesicle-to-worm morphological transitions and the rheological properties of various examples of worm gels in non-polar media are summarized. Finally, visible absorption spectroscopy and small-angle X-ray scattering (SAXS) enable in situ monitoring of nanoparticle formation, while small-angle neutron scattering (SANS) can be used to examine micelle fusion/fission and chain exchange mechanisms.
Collapse
Affiliation(s)
- Csilla György
- Department of ChemistryUniversity of SheffieldDainton BuildingSheffieldSouth YorkshireS3 7HFUK
| | - Steven P. Armes
- Department of ChemistryUniversity of SheffieldDainton BuildingSheffieldSouth YorkshireS3 7HFUK
| |
Collapse
|
3
|
Ma X, Pan A, He F, Huang S, Liang J, He L. Well-shaped poly(dimethylsiloxane)-based copolymer nanowires from spherical micelles via kinetic shape evolution. SOFT MATTER 2023; 19:3739-3746. [PMID: 37190952 DOI: 10.1039/d3sm00515a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The formation of self-assembled arrays or superstructures from copolymers has attracted intense research interest. Herein, we propose a kinetic approach to form self-assembled nanowires using a PDMS-based block copolymer consisting of poly(dimethylsiloxane)-b-poly[2-(cinnamoyloxy)ethyl methacrylate] (PDMS-b-PCEMA). The copolymer was synthesized by using the macroinitiator PDMS-Br to initiate 2-(trimethylsiloxy)ethyl methacrylate (HEMA-TMS) via ATRP, followed by hydrolysis of the TMS group and gradual esterification with cinnamoyl chloride. PDMS-b-PCEMA presented core-shell spherical micelles in tetrahydrofuran, which transformed into nanowires within 5 days self-assembly via a typical kinetic shape evolution. The diameter of the assembled nanowires with a PCEMA inner core and PDMS shell was about 25-35 nm. The formation of these nanowires reflected a balance between the PDMS and PCEMA components: the PDMS segment was soluble enough to form a corona block, which was beneficial for the transformation of the micellar shape. Meanwhile, the PCEMA segment was able to control the diameter of the nanowire micelles but had no decisive effect on their formation. The effect of solvents on the self-assembled micelles indicated that nanowires were formed in tetrahydrofuran and dichloromethane, while core-shell micelles were formed in acetone. This was due to the different permittivities of these solvents. The nanowires were fixed by cross-linking the PCEMA group under UV irradiation, which enhanced their stability. We believe that this work provides a new strategy for the formation of nanowires and offers a guide for the diversified self-assembly of nanostructures from copolymers.
Collapse
Affiliation(s)
- Xiaoqin Ma
- School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an, 710049, China.
| | - Aizhao Pan
- School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an, 710049, China.
| | - Fengyi He
- School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an, 710049, China.
| | - Shengying Huang
- School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an, 710049, China.
| | - Junyan Liang
- School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an, 710049, China.
| | - Ling He
- School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an, 710049, China.
| |
Collapse
|
4
|
Neal TJ, Penfold NJW, Armes SP. Reverse Sequence Polymerization‐Induced Self‐Assembly in Aqueous Media. Angew Chem Int Ed Engl 2022; 61:e202207376. [PMID: 35678548 PMCID: PMC9541501 DOI: 10.1002/anie.202207376] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Indexed: 11/06/2022]
Abstract
We report a new aqueous polymerization‐induced self‐assembly (PISA) formulation that enables the hydrophobic block to be prepared first when targeting diblock copolymer nano‐objects. This counter‐intuitive reverse sequence approach uses an ionic reversible addition–fragmentation chain transfer (RAFT) agent for the RAFT aqueous dispersion polymerization of 2‐hydroxypropyl methacrylate (HPMA) to produce charge‐stabilized latex particles. Chain extension using a water‐soluble methacrylic, acrylic or acrylamide comonomer then produces sterically stabilized diblock copolymer nanoparticles in an aqueous one‐pot formulation. In each case, the monomer diffuses into the PHPMA particles, which act as the locus for the polymerization. A remarkable change in morphology occurs as the ≈600 nm latex is converted into much smaller sterically stabilized diblock copolymer nanoparticles, which exhibit thermoresponsive behavior. Such reverse sequence PISA formulations enable the efficient synthesis of new functional diblock copolymer nanoparticles.
Collapse
Affiliation(s)
- Thomas J. Neal
- Department or Chemistry The University of Sheffield Brook Hill, Sheffield, South Yorkshire S3 7HF UK
| | - Nicholas J. W. Penfold
- Department or Chemistry The University of Sheffield Brook Hill, Sheffield, South Yorkshire S3 7HF UK
| | - Steven P. Armes
- Department or Chemistry The University of Sheffield Brook Hill, Sheffield, South Yorkshire S3 7HF UK
| |
Collapse
|
5
|
Mei H, Hu J, Gao Y, Li L, Zheng S. Incorporation of crosslinked polydicyclopentadiene nanoparticles into epoxy thermosets via ring opening metathesis polymerization-induced self-assembly. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
6
|
Neal TJ, Penfold NJW, Armes SP. Reverse Sequence Polymerization‐Induced Self‐Assembly in Aqueous Media. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Thomas J. Neal
- Department or Chemistry The University of Sheffield Brook Hill, Sheffield, South Yorkshire S3 7HF UK
| | - Nicholas J. W. Penfold
- Department or Chemistry The University of Sheffield Brook Hill, Sheffield, South Yorkshire S3 7HF UK
| | - Steven P. Armes
- Department or Chemistry The University of Sheffield Brook Hill, Sheffield, South Yorkshire S3 7HF UK
| |
Collapse
|
7
|
Hunter SJ, Penfold NJW, Jones ER, Zinn T, Mykhaylyk OO, Armes SP. Synthesis of Thermoresponsive Diblock Copolymer Nano-Objects via RAFT Aqueous Emulsion Polymerization of Hydroxybutyl Methacrylate. Macromolecules 2022; 55:3051-3062. [PMID: 35492576 PMCID: PMC9047412 DOI: 10.1021/acs.macromol.2c00379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/01/2022] [Indexed: 02/08/2023]
Affiliation(s)
- Saul J. Hunter
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, Yorkshire S3 7HF, U.K
| | - Nicholas J. W. Penfold
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, Yorkshire S3 7HF, U.K
| | | | - Thomas Zinn
- ESRF - The European Synchrotron, 38043 Grenoble, France
| | - Oleksandr O. Mykhaylyk
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, Yorkshire S3 7HF, U.K
| | - Steven P. Armes
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, Yorkshire S3 7HF, U.K
| |
Collapse
|
8
|
Chan DH, Deane OJ, Kynaston EL, Lindsay C, Taylor P, Armes SP. Sterically Stabilized Diblock Copolymer Nanoparticles Enable Convenient Preparation of Suspension Concentrates Comprising Various Agrochemical Actives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:2885-2894. [PMID: 35192370 PMCID: PMC9007534 DOI: 10.1021/acs.langmuir.1c03275] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/08/2022] [Indexed: 05/08/2023]
Abstract
It is well known that sterically stabilized diblock copolymer nanoparticles can be readily prepared using polymerization-induced self-assembly. Recently, we reported that such nanoparticles can be employed as a dispersant to prepare micron-sized particles of a widely used fungicide (azoxystrobin) via ball milling. In the present study, we examine the effect of varying the nature of the steric stabilizer block, the mean nanoparticle diameter, and the glass transition temperature (Tg) of the core-forming block on the particle size and colloidal stability of such azoxystrobin microparticles. In addition, the effect of crosslinking the nanoparticle cores is also investigated. Laser diffraction studies indicated the formation of azoxystrobin microparticles of approximately 2 μm diameter after milling for between 15 and 30 min at 6000 rpm. Diblock copolymer nanoparticles comprising a non-ionic steric stabilizer, rather than a cationic or anionic steric stabilizer, were determined to be more effective dispersants. Furthermore, nanoparticles of up to 51 nm diameter enabled efficient milling and ensured overall suspension concentrate stability. Moreover, crosslinking the nanoparticle cores and adjusting the Tg of the core-forming block had little effect on the milling of azoxystrobin. Finally, we show that this versatile approach is also applicable to five other organic crystalline agrochemicals, namely pinoxaden, cyproconazole, difenoconazole, isopyrazam and tebuconazole. TEM studies confirmed the adsorption of sterically stabilized nanoparticles at the surface of such agrochemical microparticles. The nanoparticles are characterized using TEM, DLS, aqueous electrophoresis and 1H NMR spectroscopy, while the final aqueous' suspension concentrates comprising microparticles of the above six agrochemical actives are characterized using optical microscopy, laser diffraction and electron microscopy.
Collapse
Affiliation(s)
- Derek
H. H. Chan
- Dainton
Building, Chemistry Department, University
of Sheffield, Brook Hill, Sheffield, South
Yorkshire S3 7HF, U.K.
| | - Oliver J. Deane
- Dainton
Building, Chemistry Department, University
of Sheffield, Brook Hill, Sheffield, South
Yorkshire S3 7HF, U.K.
| | - Emily L. Kynaston
- Syngenta,
Jealott’s Hill International Research Centre, Bracknell, Berkshire RG42 6EY, U.K.
| | - Christopher Lindsay
- Syngenta,
Jealott’s Hill International Research Centre, Bracknell, Berkshire RG42 6EY, U.K.
| | - Philip Taylor
- Syngenta,
Jealott’s Hill International Research Centre, Bracknell, Berkshire RG42 6EY, U.K.
| | - Steven P. Armes
- Dainton
Building, Chemistry Department, University
of Sheffield, Brook Hill, Sheffield, South
Yorkshire S3 7HF, U.K.
| |
Collapse
|
9
|
Zhang Q, Wang R, Chen Y, Zhang L, Tan J. Block Copolymer Vesicles with Tunable Membrane Thicknesses and Compositions Prepared by Aqueous Seeded Photoinitiated Polymerization-Induced Self-Assembly at Room Temperature. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:2699-2710. [PMID: 35176211 DOI: 10.1021/acs.langmuir.1c03430] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Block copolymer vesicles with diverse functionalities and intrinsic hollow structures have received considerable attention due to their broad applications in biomedical fields, including drug delivery, bioimaging, theranostics, gene therapy, etc. However, efficient preparation of block copolymer vesicles with tunable membrane thicknesses and compositions under mild conditions is still a challenge. Herein, we report an aqueous seeded photoinitiated polymerization-induced self-assembly (photo-PISA) for the precise preparation of block copolymer vesicles at room temperature. By changing the total degree of polymerization (DP) of the hydrophobic block in seeded photo-PISA, one can easily tune the membrane thickness without compromising the morphology of vesicles. Moreover, by adding different comonomers such as hydrophobic monomers, hydrophilic monomers, and cross-linkers into seeded photo-PISA, vesicles with different compositions could be prepared without compromising the morphology and colloidal stability. Polymerization kinetics show that seeded photo-PISA can skip the step of in situ self-assembly with a short homogeneous polymerization stage being observed. To demonstrate potential biological applications, enzymatic nanoreactors were constructed by loading horseradish peroxidase (HRP) inside vesicles via seeded photo-PISA. The enzymatic properties of these nanoreactors could be easily regulated by changing the membrane thickness and hydrophobicity. It is expected that this method can provide a facile platform for the precise preparation of block copolymer vesicles that may find applications in different fields.
Collapse
Affiliation(s)
- Qichao Zhang
- Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Ruiming Wang
- Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Ying Chen
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, 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
| | - 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
| |
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
Derry MJ, Mykhaylyk OO, Armes SP. Shear-induced alignment of block copolymer worms in mineral oil. SOFT MATTER 2021; 17:8867-8876. [PMID: 34542137 DOI: 10.1039/d1sm01011e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Poly(stearyl methacrylate)-poly(benzyl methacrylate) [PSMA-PBzMA] diblock copolymer worms were synthesized directly in mineral oil via reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization at 90 °C. Free-standing gels were obtained from this polymerization-induced self-assembly (PISA) formulation when targeting PSMA13-PBzMA65 dispersions at 5% w/w to 20% w/w copolymer concentration. Gel permeation chromatography (GPC) studies indicated that almost identical copolymer chains were obtained in all cases, while transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) studies confirmed that highly anisotropic worms were formed with mean cross-sectional diameters of 11.9-13.1 nm. These worms undergo a thermoreversible worm-to-sphere transition on heating up to 150 °C. Rheological studies were conducted to characterize the shear rate- and concentration-dependent behaviour caused by this change in copolymer morphology, where the initial shear-thinning worm gels form spheres (i.e. a Newtonian fluid) on heating up to 150 °C. Complementary shear-induced polarized light imaging (SIPLI) experiments confirmed the formation of aligned linear worms under applied shear between 80 °C and 110 °C, with high-viscosity dispersions of branched worms being obtained at 20-60 °C and low-viscosity spheres being produced at 150 °C. This study informs the use of such block copolymer worms as rheology modifiers for non-polar oils, which is of potential interest for the automotive industry.
Collapse
Affiliation(s)
- Matthew J Derry
- Department of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, UK.
| | - Oleksandr O Mykhaylyk
- Department of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, UK.
| | - Steven P Armes
- Department of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, UK.
| |
Collapse
|
12
|
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
| |
Collapse
|
13
|
Smith GN, Canning SL, Derry MJ, Jones ER, Neal TJ, Smith AJ. Ionic and Nonspherical Polymer Nanoparticles in Nonpolar Solvents. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Gregory N. Smith
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, United Kingdom
| | - Sarah L. Canning
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, United Kingdom
| | - Matthew J. Derry
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, United Kingdom
| | - Elizabeth R. Jones
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, United Kingdom
| | - Thomas J. Neal
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, United Kingdom
| | - Andrew J. Smith
- Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| |
Collapse
|
14
|
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.
Collapse
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
| |
Collapse
|
15
|
Li S, Han G, Zhang W. Cross-linking approaches for block copolymer nano-assemblies via RAFT-mediated polymerization-induced self-assembly. Polym Chem 2020. [DOI: 10.1039/d0py00627k] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This minireview summarizes the current cross-linking approaches to stabilize block copolymer nano-assemblies obtained via RAFT-mediated PISA process.
Collapse
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
| | - 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
| |
Collapse
|