101
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Mellot G, Beaunier P, Guigner JM, Bouteiller L, Rieger J, Stoffelbach F. Beyond Simple AB Diblock Copolymers: Application of Bifunctional and Trifunctional RAFT Agents to PISA in Water. Macromol Rapid Commun 2018; 40:e1800315. [DOI: 10.1002/marc.201800315] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/19/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Gaëlle Mellot
- Sorbonne Université; CNRS; Institut Parisien de Chimie Moléculaire; UMR 8232; Equipe chimie des polymères; F-75252 Paris Cedex 05 France
| | - Patricia Beaunier
- Sorbonne Université; CNRS; Laboratoire de Réactivité de Surface; UMR 7197 F-75252 Paris Cedex 05 France
| | - Jean-Michel Guigner
- Sorbonne Université; CNRS; Institut de Minéralogie; de Physique des Matériaux et de Cosmochimie; UMR 7590 - IRD - MNHN F-75005 Paris France
| | - Laurent Bouteiller
- Sorbonne Université; CNRS; Institut Parisien de Chimie Moléculaire; UMR 8232; Equipe chimie des polymères; F-75252 Paris Cedex 05 France
| | - Jutta Rieger
- Sorbonne Université; CNRS; Institut Parisien de Chimie Moléculaire; UMR 8232; Equipe chimie des polymères; F-75252 Paris Cedex 05 France
| | - François Stoffelbach
- Sorbonne Université; CNRS; Institut Parisien de Chimie Moléculaire; UMR 8232; Equipe chimie des polymères; F-75252 Paris Cedex 05 France
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102
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Jesson C, Cunningham VJ, Smallridge MJ, Armes SP. Synthesis of High Molecular Weight Poly(glycerol monomethacrylate) via RAFT Emulsion Polymerization of Isopropylideneglycerol Methacrylate. Macromolecules 2018; 51:3221-3232. [PMID: 29805184 PMCID: PMC5959244 DOI: 10.1021/acs.macromol.8b00294] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/27/2018] [Indexed: 12/17/2022]
Abstract
High molecular weight water-soluble polymers are widely used as flocculants or thickeners. However, synthesis of such polymers via solution polymerization invariably results in highly viscous fluids, which makes subsequent processing somewhat problematic. Alternatively, such polymers can be prepared as colloidal dispersions; in principle, this is advantageous because the particulate nature of the polymer chains ensures a much lower fluid viscosity. Herein we exemplify the latter approach by reporting the convenient one-pot synthesis of high molecular weight poly(glycerol monomethacrylate) (PGMA) via the reversible addition-fragmentation chain transfer (RAFT) aqueous emulsion polymerization of a water-immiscible protected monomer precursor, isopropylideneglycerol methacrylate (IPGMA) at 70 °C, using a water-soluble poly(glycerol monomethacrylate) (PGMA) chain transfer agent as a steric stabilizer. This formulation produces a low-viscosity aqueous dispersion of PGMA-PIPGMA diblock copolymer nanoparticles at 20% solids. Subsequent acid deprotection of the hydrophobic core-forming PIPGMA block leads to particle dissolution and affords a viscous aqueous solution comprising high molecular weight PGMA homopolymer chains with a relatively narrow molecular weight distribution. Moreover, it is shown that this latex precursor route offers an important advantage compared to the RAFT aqueous solution polymerization of glycerol monomethacrylate since it provides a significantly faster rate of polymerization (and hence higher monomer conversion) under comparable conditions.
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Affiliation(s)
- Craig
P. Jesson
- Department
of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K.
| | | | | | - Steven P. Armes
- Department
of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K.
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103
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Zhang B, Lv X, Zhu A, Zheng J, Yang Y, An Z. Morphological Stabilization of Block Copolymer Worms Using Asymmetric Cross-Linkers during Polymerization-Induced Self-Assembly. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00246] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Baohua Zhang
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Xiaoqing Lv
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Anqi Zhu
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Jinwen Zheng
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Yongqi Yang
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Zesheng An
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
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104
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Cai M, Ding Y, Wang L, Huang L, Lu X, Cai Y. Synthesis of One-Component Nanostructured Polyion Complexes via Polymerization-Induced Electrostatic Self-Assembly. ACS Macro Lett 2018; 7:208-212. [PMID: 35610894 DOI: 10.1021/acsmacrolett.8b00005] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Nanostructured polyion complexes (PICs) are expected to serve as novel platforms to stabilize and deliver drugs, proteins, and nucleic acids. Yet, traditional self-assembly suffers from lack of scale-up and reproducibility. Particularly for one-component PICs, only spheres are available to date. Here, we report an efficient and scalable strategy to prepare one-component low-dimensional PICs. It involves visible-light-mediated RAFT iterative polymerization of opposite-charge monomers at 25% w/w solids in water at 25 °C. Sphere-film-vesicle transition and charge-/medium-tunable shape selectivity are reported. One-component PIC nanowire, ultrathin film, vesicle, tube, and surface-charged vesicle are easily prepared, and vesicle-polymerization is fulfilled, using this new strategy. This strategy provides a general platform to prepare one-component low-dimensional PICs with tailorable morphologies and high reproducibility on commercially viable scale under eco-friendly conditions.
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Affiliation(s)
- Meng Cai
- College of Chemistry, Chemical Engineering
and Materials Science, State-Local Joint Engineering Laboratory for
Novel Functional Polymer Materials, Soochow University, Suzhou 215123, China
| | - Yi Ding
- College of Chemistry, Chemical Engineering
and Materials Science, State-Local Joint Engineering Laboratory for
Novel Functional Polymer Materials, Soochow University, Suzhou 215123, China
| | - Lei Wang
- College of Chemistry, Chemical Engineering
and Materials Science, State-Local Joint Engineering Laboratory for
Novel Functional Polymer Materials, Soochow University, Suzhou 215123, China
| | - Leilei Huang
- College of Chemistry, Chemical Engineering
and Materials Science, State-Local Joint Engineering Laboratory for
Novel Functional Polymer Materials, Soochow University, Suzhou 215123, China
| | - Xinhua Lu
- College of Chemistry, Chemical Engineering
and Materials Science, State-Local Joint Engineering Laboratory for
Novel Functional Polymer Materials, Soochow University, Suzhou 215123, China
| | - Yuanli Cai
- College of Chemistry, Chemical Engineering
and Materials Science, State-Local Joint Engineering Laboratory for
Novel Functional Polymer Materials, Soochow University, Suzhou 215123, China
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105
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Jia T, Rao J, Zou L, Zhao S, Yi Z, Wu B, Li L, Yuan H, Shi L, Zhang C, Gao Y, Liu S, Xu H, Liu H, Liang S, Li G. Nanoparticle-Encapsulated Curcumin Inhibits Diabetic Neuropathic Pain Involving the P2Y12 Receptor in the Dorsal Root Ganglia. Front Neurosci 2018; 11:755. [PMID: 29422835 PMCID: PMC5788895 DOI: 10.3389/fnins.2017.00755] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 12/29/2017] [Indexed: 12/28/2022] Open
Abstract
Diabetic peripheral neuropathy results in diabetic neuropathic pain (DNP). Satellite glial cells (SGCs) enwrap the neuronal soma in the dorsal root ganglia (DRG). The purinergic 2 (P2) Y12 receptor is expressed on SGCs in the DRG. SGC activation plays an important role in the pathogenesis of DNP. Curcumin has anti-inflammatory and antioxidant properties. Because curcumin has poor metabolic stability in vivo and low bioavailability, nanoparticle-encapsulated curcumin was used to improve its targeting and bioavailability. In the present study, our aim was to investigate the effects of nanoparticle-encapsulated curcumin on DNP mediated by the P2Y12 receptor on SGCs in the rat DRG. Diabetic peripheral neuropathy increased the expression levels of the P2Y12 receptor on SGCs in the DRG and enhanced mechanical and thermal hyperalgesia in rats with diabetes mellitus (DM). Up-regulation of the P2Y12 receptor in SGCs in the DRG increased the production of pro-inflammatory cytokines. Up-regulation of interleukin-1β (IL-1β) and connexin43 (Cx43) resulted in mechanical and thermal hyperalgesia in rats with DM. The nanoparticle-encapsulated curcumin decreased up-regulated IL-1β and Cx43 expression and reduced levels of phosphorylated-Akt (p-Akt) in the DRG of rats with DM. The up-regulation of P2Y12 on SGCs and the up-regulation of the IL-1β and Cx43 in the DRG indicated the activation of SGCs in the DRG. The nano-curcumin treatment inhibited the activation of SGCs accompanied by its anti-inflammatory effect to decrease the up-regulated CGRP expression in the DRG neurons. Therefore, the nanoparticle-encapsulated curcumin treatment decreased the up-regulation of the P2Y12 receptor on SGCs in the DRG and decreased mechanical and thermal hyperalgesia in rats with DM.
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Affiliation(s)
- Tianyu Jia
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Jingan Rao
- Second Clinical Department, Medical School, Nanchang University, Nanchang, China
| | - Lifang Zou
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Shanhong Zhao
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Zhihua Yi
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Bing Wu
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Lin Li
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Huilong Yuan
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Liran Shi
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Chunping Zhang
- Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China.,Department of Cell Biology, Medical School, Nanchang University, Nanchang, China
| | - Yun Gao
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Shuangmei Liu
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Hong Xu
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Hui Liu
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Shangdong Liang
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
| | - Guilin Li
- Department of Physiology, Medical School, Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, China
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106
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Guragain S, Perez-Mercader J. Light-mediated one-pot synthesis of an ABC triblock copolymer in aqueous solution via RAFT and the effect of pH on copolymer self-assembly. Polym Chem 2018. [DOI: 10.1039/c8py00775f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the triblock copolymer self-assembly resulting into different morphologies that occurred during the polymerization of a hydrophobic third block in aqueous solution.
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Affiliation(s)
- Sudhina Guragain
- Department of Earth and Planetary Science
- Origin of Life Initiative
- Harvard University
- Cambridge
- USA
| | - Juan Perez-Mercader
- Department of Earth and Planetary Science
- Origin of Life Initiative
- Harvard University
- Cambridge
- USA
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107
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Biais P, Beaunier P, Stoffelbach F, Rieger J. Loop-stabilized BAB triblock copolymer morphologies by PISA in water. Polym Chem 2018. [DOI: 10.1039/c8py00914g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Assemblies of BAB triblock copolymers are prepared by PISA via aqueous RAFT dispersion polymerization. The importance of charges in the middle of the hydrophilic stabilizer loops is highlighted.
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Affiliation(s)
- Pauline Biais
- Sorbonne Université
- CNRS
- UMR 8232
- Institut Parisien de Chimie Moléculaire (IPCM)
- 75252 Paris Cedex 05
| | - Patricia Beaunier
- Sorbonne Université
- CNRS
- UMR 7197
- Laboratoire de Réactivité de Surface (LRS)
- 75252 Paris Cedex 05
| | - François Stoffelbach
- Sorbonne Université
- CNRS
- UMR 8232
- Institut Parisien de Chimie Moléculaire (IPCM)
- 75252 Paris Cedex 05
| | - Jutta Rieger
- Sorbonne Université
- CNRS
- UMR 8232
- Institut Parisien de Chimie Moléculaire (IPCM)
- 75252 Paris Cedex 05
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108
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Tao J, Lin Z, Zhang H, Wu Z, Cao H. Determination of ADH in textiles using the HPLC-MS/MS method and the study of its adsorption behaviour towards formaldehyde. RSC Adv 2018; 8:2915-2921. [PMID: 35541177 PMCID: PMC9077537 DOI: 10.1039/c7ra13155k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 12/26/2017] [Indexed: 12/30/2022] Open
Abstract
In the textile industry, formaldehyde-based resins are used as finishers to make the fabrics crease-resistant, which are the main source of formaldehyde in textiles. In our practical study, there are cases that prove that textile products containing adipic dihydrazide (ADH) will continuously adsorb formaldehyde from the surrounding environment during storage. In this study, a high performance liquid chromatography-tandem mass spectrometry method was established for the precise determination of ADH in textiles. The method was optimized in terms of instrument conditions, extraction temperature, extraction time, and extraction mode. Under optimum test conditions, ADH was determined precisely with the linearity range of 0.05–2 mg L−1 and correlation coefficient (R2) of 0.9993. Recovery rate and repeatability were tested; the data showed that the recovery rate of ADH in textiles was in the range of 85–100%, and the RSD (relative standard deviation) was less than 10%. The ADH-positive textile samples were placed in designed environments for some time to adsorb formaldehyde. The adsorbed amounts of formaldehyde in the textile samples first increase and then decrease with time. The maximum amount of formaldehyde a sample can adsorb increases with an increase in its ADH content and will stop increasing once its ADH content exceeds 1700 mg kg−1. The placement environment has a little effect on the maximum adsorption capacity of the samples towards formaldehyde, but can significantly affect the adsorption rate and equilibrium adsorption capacity. Study on the adsorption behaviour of textiles containing ADH towards formaldehyde under different placement environments.![]()
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Affiliation(s)
- Jinxiong Tao
- Shenzhen Academy of Metrology and Quality Inspection
- Shenzhen 518000
- P. R. China
| | - Ziwei Lin
- Shenzhen Academy of Metrology and Quality Inspection
- Shenzhen 518000
- P. R. China
| | - Haixuan Zhang
- Shenzhen Academy of Metrology and Quality Inspection
- Shenzhen 518000
- P. R. China
| | - Zhuoming Wu
- Shenzhen Academy of Metrology and Quality Inspection
- Shenzhen 518000
- P. R. China
| | - Haihui Cao
- Embry (China) Garments Co. Ltd
- Shenzhen
- P. R. China
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109
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Wu Y, Tan M, Su Z, Shi Y, Fu Z, Yang W. In situ synthesis of PAA-b-PSt nano-assemblies via dispersion RAFT polymerization: effects of PEG in the medium. NEW J CHEM 2018. [DOI: 10.1039/c8nj04644a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A facile and efficient approach was proposed to adjust BCP assemblies in PISA by introduction of PEG in the medium. Both PEG amount and molecular weight have significant effects on PAA-b-PSt micelles.
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Affiliation(s)
- Yong Wu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Mengting Tan
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Zhipeng Su
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Yan Shi
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Zhifeng Fu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
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110
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Badoux M, Drechsler S, Pal S, Kilbinger AFM. Facile Synthesis of a High Molecular Weight Amphiphilic Aramid–ROMP Block Copolymer. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01989] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael Badoux
- Chemistry Department, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Susanne Drechsler
- Chemistry Department, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Subhajit Pal
- Chemistry Department, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Andreas F. M. Kilbinger
- Chemistry Department, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
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111
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CO2-sensitive amphiphilic triblock copolymer self-assembly morphology transition and accelerating drug release from polymeric vesicle. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2008-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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112
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Zhao S, Yang J, Han X, Gong Y, Rao S, Wu B, Yi Z, Zou L, Jia T, Li L, Yuan H, Shi L, Zhang C, Gao Y, Li G, Liu S, Xu H, Liu H, Liang S. Effects of nanoparticle-encapsulated curcumin on HIV-gp120-associated neuropathic pain induced by the P2X 3 receptor in dorsal root ganglia. Brain Res Bull 2017; 135:53-61. [PMID: 28962965 DOI: 10.1016/j.brainresbull.2017.09.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 09/14/2017] [Accepted: 09/22/2017] [Indexed: 12/12/2022]
Abstract
HIV-1 envelope glycoprotein (Glycoprotein 120, gp120) can directly stimulate primary sensory afferent neurons and cause chronic neuropathic pain. The P2X3 receptor in the dorsal root ganglia (DRG) is associated with the transmission of neuropathic pain. Curcumin isolated from the herb Curcuma rhizome has anti-inflammatory and anti-tumor effects. The water solubility, targeting and bioavailability of curcumin can be improved by nanoparticle encapsulation. In this study, we sought to explore the effects of nanoparticle-encapsulated curcumin (nano curcumin) on HIV-gp120-induced neuropathic pain mediated by the P2X3 receptor in DRG neurons. The results showed that mechanical and thermal hyperalgesia in rats treated with gp120 were increased compared to those in the control group. The expression levels of P2X3 mRNA and protein in rats treated with gp120 were higher than those in the control group. Nano curcumin treatment decreased mechanical hyperalgesia and thermal hyperalgesia and upregulated the expression levels of P2X3 mRNA and protein in rats treated with gp120. Nano curcumin treatment also reduced the ERK1/2 phosphorylation levels in gp120-treated rat DRG. In addition, P2X3 agonist α,β-methylene ATP (α,β-meATP)-induced currents in DRG neurons cultured with gp120 significantly decreased after co-treatment with nano curcumin. Therefore, nano curcumin treatment may inhibit P2X3 activation, decrease the sensitizing DRG primary afferents and relieve mechanical hyperalgesia and thermal hyperalgesia in gp120-treated rats.
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Affiliation(s)
- Shanhong Zhao
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Jinpu Yang
- Queen Mary School, Medical College of Nanchang University Nanchang, Jiangxi 330006, People's Republic of China
| | - Xinyao Han
- Undergraduate Student of the First Clinical Department, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China
| | - Yingxin Gong
- Undergraduate Student of the First Clinical Department, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China
| | - Shenqiang Rao
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Bing Wu
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Zhihua Yi
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China; Nursing College, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China
| | - Lifang Zou
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Tianyu Jia
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Lin Li
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Huilong Yuan
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Liran Shi
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Chunping Zhang
- Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China; Department of Cell Biology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China
| | - Yun Gao
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Guilin Li
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Shuangmei Liu
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Hong Xu
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Hui Liu
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China
| | - Shangdong Liang
- Department of Physiology, Medical School of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, People's Republic of China.
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113
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Wu Y, Wang K, Tan H, Xu J, Zhu J. Emulsion Solvent Evaporation-Induced Self-Assembly of Block Copolymers Containing pH-Sensitive Block. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:9889-9896. [PMID: 28836788 DOI: 10.1021/acs.langmuir.7b02330] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A simple yet efficient method is developed to manipulate the self-assembly of pH-sensitive block copolymers (BCPs) confined in emulsion droplets. Addition of acid induces significant variation in morphological transition (e.g., structure and surface composition changes) of the polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) assemblies, due to the hydrophobic-hydrophilic transition of the pH-sensitive P4VP block via protonation. In the case of pH > pKa(P4VP) (pKa (P4VP) = 4.8), the BCPs can self-assemble into pupa-like particles because of the nearly neutral wetting of PS and P4VP blocks at the oil/water interface. As expected, onion-like particles obtained when pH is slightly lower than pKa(P4VP) (e.g., pH = 3.00), due to the interfacial affinity to the weakly hydrophilic P4VP block. Interestingly, when pH was further decreased to ∼2.5, interfacial instability of the emulsion droplets was observed, and each emulsion droplet generated nanoscale assemblies including vesicles, worm-like and/or spherical micelles rather than a nanostructured microparticle. Furthermore, homopolymer with different molecular weights and addition ratio are employed to adjust the interactions among copolymer blocks. By this means, particles with hierarchical structures can be obtained. Moreover, owing to the kinetically controlled processing, we found that temperature and stirring speed, which can significantly affect the kinetics of the evaporation of organic solvent and the formation of particles, played a key role in the morphology of the assemblies. We believe that manipulation of the property for the aqueous phase is a promising strategy to rationally design and fabricate polymeric assemblies with desirable shapes and internal structures.
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Affiliation(s)
| | | | | | | | - Jintao Zhu
- Shenzhen Research Institute of HUST , Shenzhen 518000, China
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114
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Affiliation(s)
- Joris J. Haven
- Polymer Reaction Design Group; Institute for Materials Research (imo-imomec); Hasselt University; Campus Diepenbeek Building D 3590 Diepenbeek Belgium
| | - Tanja Junkers
- Polymer Reaction Design Group; Institute for Materials Research (imo-imomec); Hasselt University; Campus Diepenbeek Building D 3590 Diepenbeek Belgium
- IMEC division IMOMEC; Wetenschapspark 1 3590 Diepenbeek Belgium
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115
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Wang X, Zhou J, Lv X, Zhang B, An Z. Temperature-Induced Morphological Transitions of Poly(dimethylacrylamide)–Poly(diacetone acrylamide) Block Copolymer Lamellae Synthesized via Aqueous Polymerization-Induced Self-Assembly. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01644] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xiao Wang
- Institute of Nanochemistry and Nanobiology,
College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Jiamin Zhou
- Institute of Nanochemistry and Nanobiology,
College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Xiaoqing Lv
- Institute of Nanochemistry and Nanobiology,
College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Baohua Zhang
- Institute of Nanochemistry and Nanobiology,
College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Zesheng An
- Institute of Nanochemistry and Nanobiology,
College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
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116
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Canning SL, Cunningham VJ, Ratcliffe LPD, Armes SP. Phenyl acrylate is a versatile monomer for the synthesis of acrylic diblock copolymer nano-objects via polymerization-induced self-assembly. Polym Chem 2017. [DOI: 10.1039/c7py01161j] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Poly(phenyl acrylate) has a sufficiently high glass transition temperature to enable TEM studies of the morphology of diblock copolymer nano-objects prepared using three different polymerization-induced self-assembly (PISA) formulations.
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Affiliation(s)
- S. L. Canning
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
| | | | | | - S. P. Armes
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
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