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Ye L, Liu M, Wang X, Yu Z, Huang Z, Zhou N, Zhang Z, Zhu X. Sequence effect on the self-assembly of discrete amphiphilic co-oligomers with fluorene-azobenzene semirigid backbones. RSC Adv 2023; 13:24181-24190. [PMID: 37575403 PMCID: PMC10416705 DOI: 10.1039/d3ra04205g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 07/27/2023] [Indexed: 08/15/2023] Open
Abstract
Sequences can have a dramatic impact on the unique properties and self-assembly in natural macromolecules, which has received increasing interest. Herein, we report a series of discrete amphiphilic co-oligomers with the same composition but different building blocks in a semirigid backbone. These sequence-defined oligomers possess two primary amine groups on the side chain of the azobenzene building block, and hence, they become amphipathic due to quaternization of the amine groups when protonated in acidic aqueous solution. These oligomer isomers assembled into different nanoparticles, including nanofibers, hollow vesicles and spherical micellar complexes, in a THF/water/HCl mixture under the same conditions. UV-vis absorption spectra, differential scanning calorimetry (DSC) and X-ray scattering (XRD) experiments combined with theoretical calculations reveal that the sequence-controlled co-oligomers induce different molecular packing conformations and arrangement modes of building blocks in self-assembly. Furthermore, these self-assembled nanoparticles demonstrate photoresponsive morphological transformation and fluorescence emission under UV light irradiation due to trans-to-cis photoisomerization of azobenzene. This work demonstrates that customizing functional nanoparticles can be achieved by controlling the sequence structure in synthetic co-oligomers.
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Affiliation(s)
- Liandong Ye
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Min Liu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Xiao Wang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Zhihong Yu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Zhihao Huang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Nianchen Zhou
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Zhengbiao Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Xiulin Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
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Zhou ZH, Zhang JG, Chen Q, Luo YL, Xu F, Chen YS. Temperature and Photo Dual-Stimuli Responsive Block Copolymer Self-Assembly Micelles for Cellular Controlled Drug Release. Macromol Biosci 2020; 21:e2000291. [PMID: 33326167 DOI: 10.1002/mabi.202000291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/09/2020] [Indexed: 11/09/2022]
Abstract
To well adapt to the complicated physiological environments, it is necessary to engineer dual- and/or multi-stimuli responsive drug carriers for more effective drug release. For this, a novel temperature responsive lateral chain photosensitive block copolymer, poly[(N-isopropylacrylamide-co-N,N-dimethylacrylamide) -block-propyleneacylalkyl-4-azobenzoate] (P(NIPAM-co-DMAA)-b-PAzoHPA), is synthesized by atom transfer radical polymerization. The structure is characterized by 1 H nuclear magnetic resonance spectrometry and laser light scattering gel chromatography system. The self-assembly behavior, morphology, and sizes of micelles are investigated by fluorescence spectroscopy, transmission electron microscope, and laser particle analyzer. Dual responsiveness to light and temperature is explored by ultraviolet-visible absorption spectroscopy. The results show that the copolymer micelles take on apparent light and temperature dual responsiveness, and its lower critical solution temperature (LCST) is above 37 °C, and changes with the trans-/cis- isomerization of azobenzene structure under UV irradiation. The blank copolymers are nontoxic, whereas the paclitaxel (PTX)-loaded counterparts possessed comparable anticancer activities to free PTX, with entrapment efficiency of 83.7%. The PTX release from the PTX-loaded micelles can be mediated by changing temperature and/or light stimuli. The developed block copolymers can potentially be used for cancer therapy as drug controlled release carriers.
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Affiliation(s)
- Zi-Hao Zhou
- Key Laboratory of Macromolecular Science of Shaanxi ProvinceSchool of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Jian-Guo Zhang
- Key Laboratory of Macromolecular Science of Shaanxi ProvinceSchool of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Qing Chen
- Key Laboratory of Macromolecular Science of Shaanxi ProvinceSchool of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Yan-Ling Luo
- Key Laboratory of Macromolecular Science of Shaanxi ProvinceSchool of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Feng Xu
- Key Laboratory of Macromolecular Science of Shaanxi ProvinceSchool of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Ya-Shao Chen
- Key Laboratory of Macromolecular Science of Shaanxi ProvinceSchool of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
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Dockendorff J, Mourran A, Gumerov RA, Potemkin II, Möller M, Gauthier M. Metal Coordination Induces Phase Segregation in Amphipolar Arborescent Copolymers with a Core–Shell–Corona Architecture. Macromolecules 2020; 53:8108-8122. [PMID: 35516458 PMCID: PMC9062874 DOI: 10.1021/acs.macromol.0c00778] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/07/2020] [Indexed: 01/08/2023]
Abstract
![]()
Arborescent
copolymers with a core–shell–corona (CSC)
architecture were synthesized and the topology of the molecules was
challenged (constrained) through intramolecular interactions, resulting
in phase separation breaking the symmetry of radial density. The inner
poly(2-vinylpyridine) shell of these arborescent polystyrene-g-[poly(2-vinylpyridine)-b-polystyrene]
molecules can self-assemble by binding metallic salts and acids in
apolar and intermediate-polarity solvents. Upon loading with HAuCl4, the characteristics of the polymer templates govern the
“loading sites” of the metal within the molecules. Unique
morphologies were observed for the metal-loaded G0–G4 arborescent
copolymers investigated, namely, spherical, toroidal, raspberry-like,
spherical nanocage, and a new worm-in-sphere morphology. The reason
for the emergence of such morphologies is the interplay among intramolecular
interactions of unlike polymer segments, solvent selectivity, the
entropic elasticity of the arborescent substrate, and phase segregation
induced by coordination with the charged metallic species. Meanwhile,
the stability of the arborescent molecules against aggregation provides
intramolecular phase segregation with imposed “confined”
geometry and thus leads to nonconventional morphologies. Furthermore,
the size of the arborescent molecules is much smaller than that of
other known particles (droplets) serving as confined geometries. Computer
simulations were used to model the mesostructure of the arborescent
copolymers, to demonstrate the influence of solvent selectivity, together
with HAuCl4 loading, on the evolution of the morphology
of the macromolecules.
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Affiliation(s)
- Jason Dockendorff
- Department of Chemistry, Institute for Polymer Research and Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Ahmed Mourran
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany
| | - Rustam A. Gumerov
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany
- Physics Department, Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russian Federation
| | - Igor I. Potemkin
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany
- Physics Department, Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russian Federation
- South Ural State University (National Research University), Chelyabinsk 454080, Russian Federation
| | - Martin Möller
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany
| | - Mario Gauthier
- Department of Chemistry, Institute for Polymer Research and Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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Zhou C, Chen Y, Huang M, Ling Y, Yang L, Zhao G, Chen J. A pH and UCST thermo-responsive tri-block copolymer (PAA- b-PDMA- b-P(AM- co-AN)) with micellization and gelatinization in aqueous media for drug release. NEW J CHEM 2020. [DOI: 10.1039/d0nj02755c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A brand new pH and thermo-responsive amphiphilic ABC triblock copolymer of poly(acrylic acid)-block-poly(N,N-dimethyl acrylamide)-block-poly(acrylamide-co-acrylonitrile) (PAA-b-PDMA-b-P(AM-co-AN)) was applied as drug carrier systems.
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Affiliation(s)
- Cheng Zhou
- Department of Chemical Engineering and Technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Yan Chen
- Department of Chemical Engineering and Technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Mingjun Huang
- Department of Chemical Engineering and Technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Yi Ling
- Department of Chemical Engineering and Technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Liming Yang
- Department of Chemical Engineering and Technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Guochen Zhao
- Shandong Provincial Key Laboratory of High Strength Lightweight Metallic Materials
- Advanced Materials Institute
- Qilu University of Technology (Shandong Academy of Sciences)
- Jinan 250014
- China
| | - Jie Chen
- Department of Chemical Engineering and Technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
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6
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Zhao X, Shan G. PSMA-b-PNIPAM copolymer micelles with both a hydrophobic segment and a hydrophilic terminal group: synthesis, micelle formation, and characterization. Colloid Polym Sci 2019. [DOI: 10.1007/s00396-019-04556-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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7
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Smart carrier from electrospun core-shell thermo-sensitive ultrafine fibers for controlled drug release. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.01.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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8
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Lv C, Zhang Z, Gao J, Xue J, Li J, Nie J, Xu J, Du B. Self-Assembly of Thermosensitive Amphiphilic Pentablock Terpolymer PNIPAMx-b-PtBA90-b-PPO36-b-PtBA90-b-PNIPAMx in Dilute Aqueous Solution. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01933] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Chao Lv
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhijun Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jia Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jinqiao Xue
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jianyuan Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jingjing Nie
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Junting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Binyang Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
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9
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Phase diagrams, mechanisms and unique characteristics of alternating-structured polymer self-assembly via simulations. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9360-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Aoyagi N, Endo T. Cyclic and linear amidine catalysts for the efficient synthesis of cyclic trithiocarbonates from carbon disulfide and episulfides under mild conditions. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Song Y, Xie T, Jiang R, Wang Z, Yin Y, Li B, Shi AC. Effect of Chain Architecture on Self-Assembled Aggregates from Cyclic AB Diblock and Linear ABA Triblock Copolymers in Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:4013-4023. [PMID: 29544246 DOI: 10.1021/acs.langmuir.8b00630] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The self-assembly behaviors of two block copolymers with the same chain length but different chain architectures (cyclic AB, linear ABA) in B-selective solvents are investigated using Monte Carlo simulations. A morphological transition sequence, from spherical micelles to cylindrical micelles, to vesicles and then to multicompartment vesicles, is observed for both copolymer systems when the interaction between the solvophobic A-block and the solvent is increased. In particular, toroidal micelles could be formed in triblock systems due to the presence of the bridging chains at the parameter region between cylindrical micelles and vesicles whereas disklike micelles are formed in cyclic systems. The simulation results demonstrated that the architecture of block copolymers could be used to regulate the structural characteristics and thermal stability of these self-assembled aggregates.
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Affiliation(s)
- Yongbing Song
- School of Physics , Nankai University , Tianjin 300071 , China
| | - Teng Xie
- School of Physics , Nankai University , Tianjin 300071 , China
| | - Run Jiang
- School of Physics , Nankai University , Tianjin 300071 , China
| | - Zheng Wang
- School of Physics , Nankai University , Tianjin 300071 , China
| | - Yuhua Yin
- School of Physics , Nankai University , Tianjin 300071 , China
| | - Baohui Li
- School of Physics , Nankai University , Tianjin 300071 , China
| | - An-Chang Shi
- Department of Physics and Astronomy , McMaster University , Hamilton , Ontario L8S 4M1 , Canada
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12
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Chen Y, Gao Y, da Silva LP, Pirraco RP, Ma M, Yang L, Reis RL, Chen J. A thermo-/pH-responsive hydrogel (PNIPAM-PDMA-PAA) with diverse nanostructures and gel behaviors as a general drug carrier for drug release. Polym Chem 2018. [DOI: 10.1039/c8py00838h] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The aim of this research was to develop thermo- and pH-responsive hydrogels based on H-bonds for the sustained release of the small-molecule model drug Methylene Blue (MB).
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Affiliation(s)
- Yan Chen
- Department of Chemical Engineering and technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Yuting Gao
- Department of Chemical Engineering and technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Lucília P. da Silva
- 3B's Research Group - Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Barco, Guimarães
| | - Rogério P. Pirraco
- 3B's Research Group - Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Barco, Guimarães
| | - Mengdi Ma
- Department of Chemical Engineering and technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Liming Yang
- Department of Chemical Engineering and technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Rui L. Reis
- 3B's Research Group - Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Barco, Guimarães
| | - Jie Chen
- Department of Chemical Engineering and technology
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
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13
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Hu WT, Yang H, Cheng H, Hu HQ. Morphology evolution of polystyrene-core/poly(N-isopropylacrylamide)-shell microgel synthesized by one-pot polymerization. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1969-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Wang J, Caceres M, Li S, Deratani A. Synthesis and Self-Assembly of Amphiphilic Block Copolymers from Biobased Hydroxypropyl Methyl Cellulose and Poly(l
-lactide). MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201600558] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jielin Wang
- Institut Européen des Membranes; UMR CNRS 5635; Université de Montpellier; 34095 Montpellier France
- Department of Materials Science; Fudan University; Shanghai 200433 P. R. China
| | - Marleny Caceres
- Institut Européen des Membranes; UMR CNRS 5635; Université de Montpellier; 34095 Montpellier France
| | - Suming Li
- Institut Européen des Membranes; UMR CNRS 5635; Université de Montpellier; 34095 Montpellier France
| | - André Deratani
- Institut Européen des Membranes; UMR CNRS 5635; Université de Montpellier; 34095 Montpellier France
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15
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Li J, Zhang Z, Zhou X, Chen T, Nie J, Du B. PNIPAmx–PPO36–PNIPAmx thermo-sensitive triblock copolymers: chain conformation and adsorption behavior on a hydrophobic gold surface. Phys Chem Chem Phys 2016; 18:519-28. [DOI: 10.1039/c5cp06079f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The presence of the PNIPAm block is not a sufficient condition for the complex adsorption behavior of PNIPAmx–PPO36–PNIPAmx triblock copolymers.
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Affiliation(s)
- Jianyuan Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhijun Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xianjing Zhou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Tongquan Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Jingjing Nie
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Binyang Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
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16
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Zhang H, Sun L, Yang B, Zhang Y, Zhu S. A thermo-responsive dual-crosslinked hydrogel with ultrahigh mechanical strength. RSC Adv 2016. [DOI: 10.1039/c6ra12278g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A thermal-responsive hydrogel with ultrahigh mechanical strength was engineered by a covalently cross-linked and an ionic coordinated network.
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Affiliation(s)
- Huijuan Zhang
- School of Material and Mechanical Engineering
- Beijing Technology and Business University
- Beijing 100048
- China
| | - Linfeng Sun
- School of Material and Mechanical Engineering
- Beijing Technology and Business University
- Beijing 100048
- China
| | - Biao Yang
- School of Material and Mechanical Engineering
- Beijing Technology and Business University
- Beijing 100048
- China
| | - Yanan Zhang
- School of Material and Mechanical Engineering
- Beijing Technology and Business University
- Beijing 100048
- China
| | - Shujie Zhu
- School of Material and Mechanical Engineering
- Beijing Technology and Business University
- Beijing 100048
- China
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17
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Pottier C, Morandi G, Dulong V, Souguir Z, Picton L, Le Cerf D. Thermo- and pH-sensitive triblock copolymers with tunable hydrophilic/hydrophobic properties. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27729] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Christophe Pottier
- Normandie Université; Caen France
- Université de Rouen, Laboratoire Polymères Biopolymères Surfaces; 76821 Mont Saint Aignan France
- CNRS UMR 6270 and FR3038; 76821 Mont Saint Aignan France
| | - Gaëlle Morandi
- Normandie Université; Caen France
- CNRS UMR 6270 and FR3038; 76821 Mont Saint Aignan France
- INSA de Rouen, Laboratoire Polymères Biopolymères Surfaces; 76821 Mont Saint Aignan France
| | - Virginie Dulong
- Normandie Université; Caen France
- Université de Rouen, Laboratoire Polymères Biopolymères Surfaces; 76821 Mont Saint Aignan France
- CNRS UMR 6270 and FR3038; 76821 Mont Saint Aignan France
| | - Zied Souguir
- Normandie Université; Caen France
- Université de Rouen, Laboratoire Polymères Biopolymères Surfaces; 76821 Mont Saint Aignan France
- CNRS UMR 6270 and FR3038; 76821 Mont Saint Aignan France
| | - Luc Picton
- Normandie Université; Caen France
- Université de Rouen, Laboratoire Polymères Biopolymères Surfaces; 76821 Mont Saint Aignan France
- CNRS UMR 6270 and FR3038; 76821 Mont Saint Aignan France
| | - Didier Le Cerf
- Normandie Université; Caen France
- Université de Rouen, Laboratoire Polymères Biopolymères Surfaces; 76821 Mont Saint Aignan France
- CNRS UMR 6270 and FR3038; 76821 Mont Saint Aignan France
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18
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Morphology and thermoresponsive behavior of hybrid micelles of polystyrene-b-poly((N-isopropyl acrylamide)-co-(4-vinylbenzyl chloride)) with Prussian blue. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1656-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Luo YL, Wang Y, Wang X, Xu F, Chen YS. Thermosensitive tribrachia star-shaped s-P(NIPAM-co-DMAM) random copolymer micelle aggregates: Preparation, characterization, and drug release applications. J Biomater Appl 2015; 30:662-76. [PMID: 25926671 DOI: 10.1177/0885328215584293] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Tribrachia star-shaped random copolymers with tunable thermosensitive phase transition temperature were designed and synthesized via a simple one-pot ammonolysis reaction approach with trimesic acid as cores. The self-assembly micellization behavior of the copolymers in aqueous solution was examined by surface tension, UV-vis transmittance, transmission electron microscope, and dynamic light scattering measurements, etc. The results indicated that the resultant copolymers formed thermosensitive micelle aggregates through hydrophobic interactions among the isopropyl groups of poly(N-isopropylacrylamide) PNIPAM chains and inter-star association at a polymer concentration above critical aggregation concentrations from 4.06 to 6.55 mg L(-1), with a cloud point range from 36.6℃ to 52.1℃, and homogeneously distributed micelle size below 200 nm. The arm length and the compositional ratios of the two comonomers had effect on physicochemical properties of the polymer micelle aggregates. Particularly, the cloud point values were enhanced as the (N,N-dimethylacrylamide) DMAM monomer was introduced and reached to 36.6℃ and 41.0℃-44.7℃ when the mass ratio of NIPAM to DMAM was 90:10 and 80:20, respectively. The thermo-triggered drug release and cytotoxicity were evaluated to confirm the applicability of the random copolymer micelle aggregates as novel drug targeted release carriers.
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Affiliation(s)
- Yan-Ling Luo
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, P. R. China
| | - Yuan Wang
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, P. R. China
| | - Xuan Wang
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, P. R. China
| | - Feng Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, P. R. China
| | - Ya-Shao Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, P. R. China
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20
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Abbott LJ, Tucker AK, Stevens MJ. Single Chain Structure of a Poly(N-isopropylacrylamide) Surfactant in Water. J Phys Chem B 2015; 119:3837-45. [DOI: 10.1021/jp511398q] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Lauren J. Abbott
- Sandia National Laboratories, Albuquerque, New Mexico 87185-1315, United States
| | - Ashley K. Tucker
- Sandia National Laboratories, Albuquerque, New Mexico 87185-1315, United States
| | - Mark J. Stevens
- Sandia National Laboratories, Albuquerque, New Mexico 87185-1315, United States
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21
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Chen L, Zhang J, Liu Y, Zhang H, Wang G. Synthesis, characterization, micellization and application of novel multiblock copolymers with the same compositions but different linkages. Polym Chem 2015. [DOI: 10.1039/c5py01103e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several novel multiblock copolymers, (PEO-b-PS-b-PEO-Diyne)s, [PEO-b-PS-b-PEO-(OH)4]s and (PEO-b-PS-b-PEO-Acetal)s, with the same compositions but different linkages were constructed, and their micellization and application were studied.
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Affiliation(s)
- Lingdi Chen
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
| | - Jiaxing Zhang
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
| | - Yujie Liu
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
| | - Hongdong Zhang
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
| | - Guowei Wang
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
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22
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Ke XX, Wang L, Xu JT, Du BY, Tu YF, Fan ZQ. Effect of local chain deformability on the temperature-induced morphological transitions of polystyrene-b-poly(N-isopropylacrylamide) micelles in aqueous solution. SOFT MATTER 2014; 10:5201-5211. [PMID: 24916798 DOI: 10.1039/c4sm00698d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The effect of temperature on the micellar morphology of two polystyrene-b-poly(N-isopropylacrylamide) (PS-b-PNIPAM) diblock copolymers in an aqueous solution was investigated by dynamic light scattering (DLS) and transmission electron microscopy (TEM). At 25 °C, a mixture of vesicles and spheres are observed for the micelles of PS65-b-PNIPAM108, while PS65-b-PNIPAM360 exhibits mixed cylindrical and spherical micellar morphology. Upon increasing the temperature, the micellar morphology becomes spherical for PS65-b-PNIPAM108 at 60 °C and for PS65-b-PNIPAM360 at 40 °C. Such vesicle-to-sphere and cylinder-to-sphere transitions of micellar morphology are reversible when the micellar solutions are cooled back to 25 °C. However, these temperature-induced morphological transitions of the PS-b-PNIPAM micelles are contrary to the theoretical prediction. Qualitative analysis of the free energy shows that vesicular or cylindrical micelles tend to form at higher temperatures if only the overall volume change of the PNIPAM block is considered. The contradiction between the experimental results and theoretical prediction is interpreted in terms of the local deformability of the PNIPAM chains. At elevated temperatures, the collapsed PNIPAM globules are less deformable and must occupy larger areas at the micellar interface, although the overall volume is smaller at higher temperatures. This will lead to a larger repulsion between the PNIPAM globules and a remarkable increase in the free energy of the corona; thus, the formation of vesicles or cylinders at higher temperatures is prohibited.
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Affiliation(s)
- Xi-Xian Ke
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China.
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23
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Liang X, Kozlovskaya V, Cox CP, Wang Y, Saeed M, Kharlampieva E. Synthesis and self-assembly of thermosensitive double-hydrophilic poly(N-vinylcaprolactam)-b-poly(N-vinyl-2-pyrrolidone) diblock copolymers. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27291] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xing Liang
- Department of Chemistry; University of Alabama at Birmingham; Birmingham Alabama 35294
| | - Veronika Kozlovskaya
- Department of Chemistry; University of Alabama at Birmingham; Birmingham Alabama 35294
| | - Christopher P. Cox
- Department of Chemistry; University of Alabama at Birmingham; Birmingham Alabama 35294
| | - Yun Wang
- Department of Chemistry; University of Alabama at Birmingham; Birmingham Alabama 35294
| | - Mohammad Saeed
- Drug Discovery Division; Department of Biochemistry and Molecular Biology; Southern Research Institute; Birmingham Alabama 35294
| | - Eugenia Kharlampieva
- Department of Chemistry; University of Alabama at Birmingham; Birmingham Alabama 35294
- Center for Nanoscale Materials and Biointegration; University of Alabama at Birmingham; Birmingham Alabama 35294
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24
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Xu F, Zhang BX, Luo YL. Thermosensitive P(NIPAM-co-AM)-b-PLA block copolymer micelles for applications in intracellular drug delivery. J Drug Deliv Sci Technol 2014. [DOI: 10.1016/s1773-2247(14)50022-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Liu Z, Jiang ZB, Yang H, Bai SM, Wang R, Xue G. Crowding effect induced phase transition of amphiphilic diblock copolymer in solution. CHINESE JOURNAL OF POLYMER SCIENCE 2013. [DOI: 10.1007/s10118-013-1346-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Hu Y, Darcos V, Monge S, Li S. Synthesis and self-assembling of poly(N-isopropylacrylamide-block-poly(L
-lactide)-block-poly(N-isopropylacrylamide) triblock copolymers prepared by combination of ring-opening polymerization and atom transfer radical polymerization. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26721] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yanfei Hu
- Institut des Biomolécules Max Mousseron; UMR CNRS 5247-Equipe Biopolymères Artificiels; Faculté de Pharmacie; Université Montpellier I; 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5 France
| | - Vincent Darcos
- Institut des Biomolécules Max Mousseron; UMR CNRS 5247-Equipe Biopolymères Artificiels; Faculté de Pharmacie; Université Montpellier I; 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5 France
| | - Sophie Monge
- Institut Charles Gerhardt; UMR 5253 CNRS-UM2-ENSCM-UM1-Equipe Ingénierie et Architectures Macromoléculaires; Université Montpellier II; cc1702, Place Eugène Bataillon, 34095 Montpellier Cedex 5 France
| | - Suming Li
- Institut des Biomolécules Max Mousseron; UMR CNRS 5247-Equipe Biopolymères Artificiels; Faculté de Pharmacie; Université Montpellier I; 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5 France
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27
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Lu Y, Chen T, Mei A, Chen T, Ding Y, Zhang X, Xu J, Fan Z, Du B. Solution behaviors and microstructures of PNIPAm-P123-PNIPAm pentablock terpolymers in dilute and concentrated aqueous solutions. Phys Chem Chem Phys 2013; 15:8276-86. [DOI: 10.1039/c3cp50376c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Lu Y, Zhang X, Fan Z, Du B. Adsorption of PNIPAm110-PEO100-PPO65-PEO100-PNIPAm110 pentablock terpolymer on hydrophobic gold. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.06.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Zhang Q, Noh SM, Nam JH, Jung HW, Park JM, Oh JK. Dual Temperature and Thiol-Responsive POEOMA-Multisegmented Polydisulfides: Synthesis and Thermoresponsive Properties. Macromol Rapid Commun 2012; 33:1528-34. [DOI: 10.1002/marc.201200289] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 05/10/2012] [Indexed: 12/28/2022]
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30
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Luo YL, Yu W, Xu F, Zhang LL. Novel thermo-responsive self-assembly micelles from a double brush-shaped PNIPAM-g
-(PA-b
-PEG-b
-PA)-g
-PNIPAM block copolymer with PNIPAM polymers as side chains. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.25980] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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31
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Gregory A, Stenzel MH. Complex polymer architectures via RAFT polymerization: From fundamental process to extending the scope using click chemistry and nature's building blocks. Prog Polym Sci 2012. [DOI: 10.1016/j.progpolymsci.2011.08.004] [Citation(s) in RCA: 377] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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32
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Moad G, Rizzardo E, Thang SH. Living Radical Polymerization by the RAFT Process – A Third Update. Aust J Chem 2012. [DOI: 10.1071/ch12295] [Citation(s) in RCA: 825] [Impact Index Per Article: 68.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This paper provides a third update to the review of reversible deactivation radical polymerization (RDRP) achieved with thiocarbonylthio compounds (ZC(=S)SR) by a mechanism of reversible addition-fragmentation chain transfer (RAFT) that was published in June 2005 (Aust. J. Chem. 2005, 58, 379). The first update was published in November 2006 (Aust. J. Chem. 2006, 59, 669) and the second in December 2009 (Aust. J. Chem. 2009, 62, 1402). This review cites over 700 publications that appeared during the period mid 2009 to early 2012 covering various aspects of RAFT polymerization which include reagent synthesis and properties, kinetics and mechanism of polymerization, novel polymer syntheses, and a diverse range of applications. This period has witnessed further significant developments, particularly in the areas of novel RAFT agents, techniques for end-group transformation, the production of micro/nanoparticles and modified surfaces, and biopolymer conjugates both for therapeutic and diagnostic applications.
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33
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Zhang Q, Re Ko N, Kwon Oh J. Recent advances in stimuli-responsive degradable block copolymer micelles: synthesis and controlled drug delivery applications. Chem Commun (Camb) 2012; 48:7542-52. [DOI: 10.1039/c2cc32408c] [Citation(s) in RCA: 310] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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34
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Synthesis and micellization of thermosensitive PNIPAAm-b-PLA amphiphilic block copolymers based on a bifunctional initiator. Macromol Res 2011. [DOI: 10.1007/s13233-011-1209-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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35
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Sourkohi BK, Schmidt R, Oh JK. New thiol-responsive mono-cleavable block copolymer micelles labeled with single disulfides. Macromol Rapid Commun 2011; 32:1652-7. [PMID: 21858893 DOI: 10.1002/marc.201100372] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Revised: 06/28/2011] [Indexed: 12/21/2022]
Abstract
Thiol-responsive symmetric triblock copolymers having single disulfide linkages in the middle blocks (called mono-cleavable block copolymers, ss-ABP(2)) were synthesized by atom transfer radical polymerization in the presence of a disulfide-labeled difunctional Br-initiator. These brush-like triblock copolymers consist of a hydrophobic polyacrylate block having pendent oligo(propylene oxide) and a hydrophilic polymethacrylate block having pendent oligo(ethylene oxide). Gel permeation chromatography and (1)H NMR results confirmed the synthesis of well-defined mono-cleavable block copolymers and revealed that polymerizations were well controlled. Because of amphiphilic nature, these copolymers self-assembled to form colloidally stable micelles above critical micellar concentration of 0.032 mg · mL(-1). In response to reductive reactions, disulfides in thiol-responsive micelles were cleaved. Atomic force microscopy and dynamic light scattering analysis suggested that the cleavage of disulfides caused dissociation of micelles to smaller-sized assembled structures in water. Moreover, in a biomedical perspective, the mono-cleavable block copolymer micelles are not cytotoxic and thus biocompatible.
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Affiliation(s)
- Behnoush Khorsand Sourkohi
- Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke St. W., Montreal, Quebec, Canada H4B 1R6
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36
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Greene AC, Zhu J, Pochan DJ, Jia X, Kiick KL. Poly(Acrylic Acid-b-Styrene) Amphiphilic Multiblock Copolymers as Building Blocks for the Assembly of Discrete Nanoparticles. Macromolecules 2011; 44:1942-1951. [PMID: 21552373 PMCID: PMC3087604 DOI: 10.1021/ma102869y] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In order to expand the utility of current polymeric micellar systems, we have developed amphiphilic multiblock copolymers containing alternating blocks of poly(acrylic acid) and poly(styrene). Heterotelechelic poly(tert-butyl acrylate-b-styrene) diblock copolymers containing an α-alkyne and an ω-azide were synthesized by atom transfer radical polymerization (ATRP), allowing control over the molecular weight while maintaining narrow polydispersity indices. The multiblock copolymers were constructed by copper-catalyzed azide-alkyne cycloaddition of azide-alkyne end functional diblock copolymers which were then characterized by (1)H NMR, FT-IR and SEC. The tert-butyl moieties of the poly(tert-butyl acrylate-b-styrene) multiblock copolymers were easily removed to form the poly(acrylic acid-b-styrene) multiblock copolymer ((PAA-PS)(9)), which contained up to 9 diblock repeats. The amphiphilic multiblock (PAA-PS)(9) (M(n) = 73.3 kg/mol) was self-assembled by dissolution into tetrahydrofuran and extensive dialysis against deionized water for 4 days. The critical micelle concentration (CMC) for (PAA-PS)(9) was determined by fluorescence spectroscopy using pyrene as a fluorescent probe and was found to be very low at 2 × 10(-4) mg/mL. The (PAA-PS)(9) multiblock was also analyzed by dynamic light scattering (DLS) and transmission electron microscopy (TEM). The hydrodynamic diameter of the particles was found to be 11 nm. Discrete spherical particles were observed by TEM with an average particle diameter of 14 nm. The poly(acrylic acid) periphery of the spherical particles should allow for future conjugation of biomolecules.
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Affiliation(s)
- Anna C. Greene
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, and Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
| | - Jiahua Zhu
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, and Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
| | - Darrin J. Pochan
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, and Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, and Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, and Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
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37
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Ebeling B, Eggers M, Vana P. Ideal Molecular Weight Distributions of Multiblock Copolymers Prepared via RAFT Polymerization. Macromolecules 2010. [DOI: 10.1021/ma1020424] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bastian Ebeling
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstr. 6, D-37077 Göttingen, Germany
| | - Martin Eggers
- Fakultät für Informatik, Technische Universität München, Barer Str. 21, D-80333 München, Germany
| | - Philipp Vana
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstr. 6, D-37077 Göttingen, Germany
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38
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Mei A, Guo X, Ding Y, Zhang X, Xu J, Fan Z, Du B. PNIPAm-PEO-PPO-PEO-PNIPAm Pentablock Terpolymer: Synthesis and Chain Behavior in Aqueous Solution. Macromolecules 2010. [DOI: 10.1021/ma101086k] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aixiong Mei
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaolei Guo
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yanwei Ding
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xinghong Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Junting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhiqiang Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Binyang Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
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