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Pei L, Ma H, Jiang Y, Zheng H, Gao H. Amphiphilic Polyethylene-b-poly(L-lysine) Block Copolymer: Synthesis, Self-Assembly, and Responsivity. Int J Mol Sci 2023; 24:ijms24065495. [PMID: 36982576 PMCID: PMC10052655 DOI: 10.3390/ijms24065495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
Polyethylene-b-polypeptide copolymers are biologically interesting, but studies of their synthesis and properties are very few. This paper reports synthesis and characterization of well-defined amphiphilic polyethylene-block-poly(L-lysine) (PE-b-PLL) block copolymers by combining nickel-catalyzed living ethylene polymerization with controlled ring-opening polymerization (ROP) of ε-benzyloxycarbonyl-L-lysine-N-carboxyanhydride (Z-Lys-NCA) and sequential post-functionalization. Amphiphilic PE-b-PLL block copolymers self-assembled into spherical micelles with a hydrophobic PE core in aqueous solution. The pH and ionic responsivities of PE-b-PLL polymeric micelles were investigated by means of fluorescence spectroscopy, dynamic light scattering, UV-circular dichroism, and transmission electron microscopy. The variation of pH values led to the conformational alteration of PLL from α-helix to coil, thereby changing the micelle dimensions.
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Affiliation(s)
- Lixia Pei
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Hongyu Ma
- Daqing Chemical Engineering Research Center, Petrochemical Research Institute, Daqing 163714, China
| | - Yan Jiang
- Daqing Chemical Engineering Research Center, Petrochemical Research Institute, Daqing 163714, China
| | - Handou Zheng
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Haiyang Gao
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
- Correspondence:
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2
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Ohtake T, Ito H, Toyoda N. Amphiphilic block copolymer surfactant-containing quaternized pyridinium salt segments for color dispersion. Polym J 2022. [DOI: 10.1038/s41428-022-00673-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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3
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Ohtake T, Ito H, Toyoda N. Amphiphilic Polymers for Color Dispersion: Toward Stable and Low-Viscosity Inkjet Ink. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:7618-7627. [PMID: 35679371 DOI: 10.1021/acs.langmuir.2c01010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Amphiphilic random and block copolymers were synthesized as potential inkjet inks. This study evaluated the potential of these polymers for color dispersion by examining the following factors: surface tension, zeta potential, viscosity, and particle size. Acrylic acid and (ethoxyethoxy)ethyl acrylate were used as the hydrophilic molecular units. Styrene, butyl acrylate, and phenoxyethyl acrylate were used as hydrophobic units. Color dispersions were prepared by using organic dye and these amphiphilic polymers. The color dispersions containing random copolymers exhibited low viscosity, which is preferable for jetting, but the dye particles tended to sediment after the thermal aging test. In contrast, those containing block copolymers showed high viscosity, which was unsuitable for jetting. However, they retained their initial dispersion state after the aging test. The advantages and disadvantages of each monomer arrangement (random or block) were demonstrated, providing a future outlook on the molecular design of polymer dispersants for color dispersions.
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Affiliation(s)
- Toshihiro Ohtake
- Environment and Materials Development Department, Corporate Research and Development Division, Seiko Epson Corporation, 80 Harashinden, Hirooka, Shiojiri, Nagano 399-0785, Japan
| | - Hiroshi Ito
- Environment and Materials Development Department, Corporate Research and Development Division, Seiko Epson Corporation, 80 Harashinden, Hirooka, Shiojiri, Nagano 399-0785, Japan
| | - Naoyuki Toyoda
- Environment and Materials Development Department, Corporate Research and Development Division, Seiko Epson Corporation, 80 Harashinden, Hirooka, Shiojiri, Nagano 399-0785, Japan
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4
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Precise synthesis of α,ω-chain-end-functionalized poly(dimethylsiloxane) with bromoaryl groups for incorporation in naphthalene-diimide-based N-type semiconducting polymers. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Zhang F, Peng S, Xu J, Cai C, Zhang LJ. Morphological transitions of micelles induced by the block arrangements of copolymer blocks: Dissipative particle dynamics simulation. Phys Chem Chem Phys 2022; 24:10757-10764. [DOI: 10.1039/d2cp00617k] [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
Polymer micelles with distinct morphologies and unique microphase separation microstructures can exhibit different properties and functions, holding the great promises for a range of biomedical applications. In current work, the...
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6
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Shahrokhinia A, Biswas P, Reuther JF. Orthogonal synthesis and modification of polymer materials. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210345] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ali Shahrokhinia
- Department of Chemistry University of Massachusetts Lowell Lowell Massachusetts USA
| | - Priyanka Biswas
- Department of Chemistry University of Massachusetts Lowell Lowell Massachusetts USA
| | - James F. Reuther
- Department of Chemistry University of Massachusetts Lowell Lowell Massachusetts USA
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7
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Lamers B, Herdlitschka A, Schnitzer T, Mabesoone MF, Schoenmakers SM, de Waal BF, Palmans AR, Wennemers H, Meijer E. Oligodimethylsiloxane-Oligoproline Block Co-Oligomers: the Interplay between Aggregation and Phase Segregation in Bulk and Solution. J Am Chem Soc 2021; 143:4032-4042. [PMID: 33660998 PMCID: PMC8041288 DOI: 10.1021/jacs.1c01076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Indexed: 12/14/2022]
Abstract
Discrete block co-oligomers (BCOs) assemble into highly ordered nanostructures, which adopt a variety of morphologies depending on their environment. Here, we present a series of discrete oligodimethylsiloxane-oligoproline (oDMS-oPro) BCOs with varying oligomer lengths and proline end-groups, and study the nanostructures formed in both bulk and solution. The conjugation of oligoprolines to apolar siloxanes permits a study of the aggregation behavior of oligoproline moieties in a variety of solvents, including a highly apolar solvent like methylcyclohexane. The apolar solvent is more reminiscent of the polarity of the siloxane bulk, which gives insights into the supramolecular interactions that govern both bulk and solution assembly processes of the oligoproline. This extensive structural characterization allows the bridging of the gap between solution and bulk assembly. The interplay between the aggregation of the oligoproline block and the phase segregation induced by the siloxane drives the assembly. This gives rise to disordered, micellar microstructures in apolar solution and crystallization-driven lamellar nanostructures in the bulk. While most di- and triblock co-oligomers adopt predictable morphological features, one of them, oDMS15-oPro6-NH2, exhibits pathway complexity leading to gel formation. The pathway selection in the complex interplay between aggregation and phase segregation gives rise to interesting material properties.
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Affiliation(s)
- Brigitte
A.G. Lamers
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Andreas Herdlitschka
- Laboratory
of Organic Chemistry, ETH Zurich, D-CHAB, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
| | - Tobias Schnitzer
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Mathijs F.J. Mabesoone
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Sandra M.C. Schoenmakers
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Bas F.M. de Waal
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Anja R.A. Palmans
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Helma Wennemers
- Laboratory
of Organic Chemistry, ETH Zurich, D-CHAB, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
| | - E.W. Meijer
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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8
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Vazaios A, Touris A, Echeverria M, Zorba G, Pitsikalis M. Micellization Behaviour of Linear and Nonlinear Block Copolymers Based on Poly(n-hexyl isocyanate) in Selective Solvents. Polymers (Basel) 2020; 12:E1678. [PMID: 32731374 PMCID: PMC7465233 DOI: 10.3390/polym12081678] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 11/16/2022] Open
Abstract
Block copolymers have attracted significant scientific and economic interest over the last decades due to their ability to self-assemble into ordered structures both in bulk and in selective solvents. In this work, the self-assembly behaviour of both linear (diblocks, triblocks and pentablocks) and nonlinear (miktoarm stars and a block-graft) copolymers based on poly(n-hexyl isocyanate), PHIC, were studied in selective solvents such as n-heptane and n-dodecane. A variety of experimental techniques, namely static and dynamic light scattering, dilute solution viscometry and atomic force microscopy, were employed to study the micellar structural parameters (e.g., aggregation number, overall micellar size and shape, and core and shell dimensions). The effect of the macromolecular architecture, the molecular weight and the copolymer composition on the self-assembly behaviour was studied. Spherical micelles in equilibrium with clusters were obtained from the block copolymers. Thermally stable, uniform and spherical aggregates were found from the triblock copolymers. The poly(n-hexyl isocyanate)-b-polyisoprene-b-poly(n-hexyl isocyanate),-HIH copolymers tend to adopt closed loop conformation, leading to more elongated cylindrical-type structures upon increasing the concentration. Clustering effects were also reported in the case of the pentablock terpolymers. The topology of the blocks plays an important role, since the poly(n-hexyl isocyanate)-b-polystyrene-b-polyisoprene-b-polystyrene-b-poly(n-hexyl isocyanate), HSISH terpolymer shows intermicellar fusion of spherical micelles, leading to the formation of extended networks. The formation of spherical micelles in equilibrium with clusters was obvious in the case of the miktoarm stars, whereas the block-graft copolymer shows the existence of mainly unimolecular micelles.
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Affiliation(s)
| | | | | | | | - Marinos Pitsikalis
- Industrial Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (A.V.); (A.T.); (M.E.); (G.Z.)
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9
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Jiao W, Yang H, Wu Z, Liu J, Zhang W. Self-assembled block polymer aggregates in selective solution: controllable morphology transitions and their applications in drug delivery. Expert Opin Drug Deliv 2020; 17:947-961. [DOI: 10.1080/17425247.2020.1767582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Weiqi Jiao
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China
- Department of Biochemistry and Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, US
| | - Hu Yang
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Zimei Wu
- School of Pharmacy, University of Auckland, Auckland, New Zealand
| | - Jianping Liu
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China
| | - Wenli Zhang
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China
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Hu K, Sarkar J, Zheng J, Lim YHM, Goto A. Organocatalyzed Living Radical Polymerization of Itaconates and Self‐Assemblies of Rod−Coil Block Copolymers. Macromol Rapid Commun 2020; 41:e2000075. [DOI: 10.1002/marc.202000075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/22/2020] [Accepted: 03/23/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Keling Hu
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371
| | - Jit Sarkar
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371
| | - Jie Zheng
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371
| | - Yan Hui Melania Lim
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371
| | - Atsushi Goto
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371
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11
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He X, Ji Y, Xie J, Hu W, Jia K, Liu X. Emulsion solvent evaporation induced self-assembly of polyarylene ether nitrile block copolymers into functional metal coordination polymeric microspheres. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122024] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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12
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Zhang J, Xu J, Wen L, Zhang F, Zhang L. The self-assembly behavior of polymer brushes induced by the orientational ordering of rod backbones: a dissipative particle dynamics study. Phys Chem Chem Phys 2020; 22:5229-5241. [DOI: 10.1039/d0cp00235f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This work proposed the “rod–coil competitive mechanism” for the self-assembly of polymer brushes with rod–coil backbones.
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Affiliation(s)
- Jing Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology
- Guangzhou 510640
- China
| | - Jianchang Xu
- School of Chemistry and Chemical Engineering, South China University of Technology
- Guangzhou 510640
- China
| | - Liyang Wen
- School of Chemistry and Chemical Engineering, South China University of Technology
- Guangzhou 510640
- China
| | - Fusheng Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology
- Guangzhou 510640
- China
| | - Lijuan Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology
- Guangzhou 510640
- China
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13
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Guo XS, Zhang ZK, Zhang TY, Tong ZZ, Xu JT, Fan ZQ. Interfacial self-assembly of amphiphilic conjugated block copolymer into 2D nanotapes. SOFT MATTER 2019; 15:8790-8799. [PMID: 31595944 DOI: 10.1039/c9sm01503e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In the present work, the evaporation-induced interfacial self-assembly behavior of an amphiphilic conjugated polymer, poly(3-hexylthiophene)-b-poly(acrylic acid) (P3HT-b-PAA), at the oil-water interface is explored. Novel 2D nanotapes of P3HT-b-PAA are prepared via the interfacial self-assembly. It is inferred that P3HT segments adopt a special conformation at the oil-water interface, which facilitates the packing of alkyl side chains and π-π interaction. The UV-vis spectrum further confirms that the ordering degree of P3HT segments is increased while transmission IR and Raman spectroscopic studies suggest that the P3HT chains adopt a more planar conformation at the oil-water interface. It is proposed that the formation of the nanotapes is driven by the ordered packing of the P3HT chains at the oil-water interface. Finally, the packing model of the P3HT chains inside the nanotapes is roughly proposed.
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Affiliation(s)
- Xiao-Shuai Guo
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ze-Kun Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Tian-Yu Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zai-Zai Tong
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Department of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Jun-Ting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhi-Qiang Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
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14
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Tinajero‐Díaz E, Martínez de Ilarduya A, Muñoz‐Guerra S. Block and Graft Copolymers Made of 16‐Membered Macrolactones and
l
‐Alanine: A Comparative Study. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ernesto Tinajero‐Díaz
- Dr. E. Tinajero‐Díaz, Dr. A. Martínez de Ilarduya, Prof. S. Muñoz‐Guerra Universitat Politècnica de Catalunya ETSEIB, Av. Diagonal 647 08028 Barcelona Spain
| | - Antxon Martínez de Ilarduya
- Dr. E. Tinajero‐Díaz, Dr. A. Martínez de Ilarduya, Prof. S. Muñoz‐Guerra Universitat Politècnica de Catalunya ETSEIB, Av. Diagonal 647 08028 Barcelona Spain
| | - Sebastián Muñoz‐Guerra
- Dr. E. Tinajero‐Díaz, Dr. A. Martínez de Ilarduya, Prof. S. Muñoz‐Guerra Universitat Politècnica de Catalunya ETSEIB, Av. Diagonal 647 08028 Barcelona Spain
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15
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Self-assembly of linear-hyperbranched hybrid block polymers: crystallization-driven or solvent-driven? JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1786-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Liu N, Lu H, Jiang Z, Lu Y, Zou H, Zhou L, Wu Z. Facile Synthesis of Helical Rod–Coil Block Polymers by the Combination of ATRP and Pd(II)‐Initiated Isocyanides Polymerizations. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800574] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Na Liu
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Hao‐Jun Lu
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Zhi‐Qiang Jiang
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Yu‐Bing Lu
- Lu'an Vocational Technical College 1 Zhengyang Road Lu'an City 237000 Anhui Province China
| | - Hui Zou
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Li Zhou
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Zong‐Quan Wu
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
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17
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Oliver AM, Gwyther J, Boott CE, Davis S, Pearce S, Manners I. Scalable Fiber-like Micelles and Block Co-micelles by Polymerization-Induced Crystallization-Driven Self-Assembly. J Am Chem Soc 2018; 140:18104-18114. [PMID: 30452254 DOI: 10.1021/jacs.8b10993] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Self-assembled 1D block copolymer nanoparticles (micelles) are of interest for a range of applications. However, morphologically pure samples are often challenging to access, and precise dimensional control is not possible. Moreover, the development of synthetic protocols that operate on a commercially viable scale has been a major challenge. Herein, we describe the preparation 1D fiber-like micelles with crystalline cores at high concentrations by a one-pot process termed polymerization-induced crystallization-driven self-assembly (PI-CDSA). We also demonstrate the formation of uniform fibers by living PI-CDSA, a process in which block copolymer synthesis, self-assembly, and seeded growth are combined. We have demonstrated that the method is successful for block copolymers that possess the same composition as that of the seed (homoepitaxial growth) and also where the coronal chemistries differ to give segmented 1D fibers known as block co-micelles. We have also shown that heteroepitaxial growth allows the formation of scaled-up block co-micelles where the composition of both the core and corona was varied. These proof-of-concept experiments indicate that PI-CDSA is a promising, scalable route to a variety of polydisperse or uniform 1D nanoparticles based on block copolymers with different crystalline core chemistries and, therefore, functions.
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Affiliation(s)
- Alex M Oliver
- School of Chemistry , University of Bristol , Bristol , BS8 1TS , U.K.,Department of Chemistry , University of Victoria , Victoria , British Columbia, V8W 3V6 , Canada
| | - Jessica Gwyther
- School of Chemistry , University of Bristol , Bristol , BS8 1TS , U.K
| | - Charlotte E Boott
- School of Chemistry , University of Bristol , Bristol , BS8 1TS , U.K
| | - Sean Davis
- School of Chemistry , University of Bristol , Bristol , BS8 1TS , U.K
| | - Samuel Pearce
- School of Chemistry , University of Bristol , Bristol , BS8 1TS , U.K
| | - Ian Manners
- School of Chemistry , University of Bristol , Bristol , BS8 1TS , U.K.,Department of Chemistry , University of Victoria , Victoria , British Columbia, V8W 3V6 , Canada
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18
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Quan C, Zhang Z, Liang P, Zheng J, Wang J, Hou Y, Tang Q. Bioactive gel self-assembled from phosphorylate biomimetic peptide: A potential scaffold for enhanced osteogenesis. Int J Biol Macromol 2018; 121:1054-1060. [PMID: 30359655 DOI: 10.1016/j.ijbiomac.2018.10.148] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/21/2018] [Accepted: 10/21/2018] [Indexed: 01/06/2023]
Abstract
Bone morphogenetic protein-2 biomimetic peptide (BMPBP) is a potent osteoinductive cytokine and plays a critical role during bone regeneration. Efforts to prepare hydrogels with surface modification or physical absorption of bioactive molecules do not provide sufficient bioactivity to meet the requirements of clinical application. The goal of this study was to form a three-dimensional hydrogel comprised of BMP-2 core sequence oligopeptide, phosphoserine, a synthetic cell adhesion peptide (RGDS), and polyaspartic acid to synergistically promote osteogenesis. Experiments performed in vitro revealed that the peptide gel was conducive to adhesion and proliferation of rat marrow mesenchymal stem cells (rMSCs). In addition, RT-PCR analysis indicated that rMSCs allowed better expression of osteogenesis-related genes such as BMP-2, runt-related transcription factor 2 (RUNX2), alkaline phosphatase (ALP), osteocalcin (OCN), and osteopontin (OPN). Use of the rat cranial bone defects model with micro-CT 3D reconstruction showed that bone regeneration patterns occurred from one side edge toward the center of the area implanted with the prepared biomimetic peptide hydrogels, demonstrating significantly accelerated bone regeneration. This work will provide a basis to explore the further application potential of this bioactive scaffold.
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Affiliation(s)
- Changyun Quan
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, PR China.
| | - Zhaoqing Zhang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Peiqing Liang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Junjiong Zheng
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Jiping Wang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Yulin Hou
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Qiyan Tang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, PR China
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19
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Liu X, Bai X, Li J, Wang C, Ren Q. Synthesis and characterization of amphiphilic graft copolymers with poly(ethylene glycol) as the hydrophilic backbone and poly(butyl methacrylate) as the hydrophobic graft chain. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4369-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Martinelli E, Guazzelli E, Galli G, Telling MTF, Poggetto GD, Immirzi B, Domenici F, Paradossi G. Prolate and Temperature-Responsive Self-Assemblies of Amphiphilic Random Copolymers with Perfluoroalkyl and Polyoxyethylene Side Chains in Solution. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800210] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; 56124 Pisa Italy
| | - Elisa Guazzelli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; 56124 Pisa Italy
| | - Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; 56124 Pisa Italy
| | - Mark T. F. Telling
- STFC Rutherford Appleton Laboratory; Chilton OX11 0QX UK
- Department of Materials; University of Oxford; Parks Road Oxford UK
| | | | - Barbara Immirzi
- Istituto per i Polimeri Compositi e Biomateriali; CNR; 80078 Pozzuoli Italy
| | - Fabio Domenici
- Dipartimento di Scienze e Tecnologie Chimiche; Università di Roma Tor Vergata; 000133 Roma Italy
| | - Gaio Paradossi
- Dipartimento di Scienze e Tecnologie Chimiche; Università di Roma Tor Vergata; 000133 Roma Italy
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21
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Carriedo GA, de la Campa R, Soto AP. Polyphosphazenes - Synthetically Versatile Block Copolymers (“Multi-Tool”) for Self-Assembly. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800126] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Gabino A. Carriedo
- Department of Organic and Inorganic Chemistry; Facultad de Química; Universidad de Oviedo; Julián Clavería s/n 33006 Oviedo Spain
| | - Raquel de la Campa
- Department of Organic and Inorganic Chemistry; Facultad de Química; Universidad de Oviedo; Julián Clavería s/n 33006 Oviedo Spain
| | - Alejandro Presa Soto
- Department of Organic and Inorganic Chemistry; Facultad de Química; Universidad de Oviedo; Julián Clavería s/n 33006 Oviedo Spain
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22
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Deng Y, Ling J, Li MH. Physical stimuli-responsive liposomes and polymersomes as drug delivery vehicles based on phase transitions in the membrane. NANOSCALE 2018; 10:6781-6800. [PMID: 29616274 DOI: 10.1039/c8nr00923f] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper reviews liposomes with crystalline phase and polymersomes exhibiting crystalline and thermotropic liquid crystalline phases in the membrane. Intriguing morphologies of vesicles are described, including spherical, ellipsoidal and faceted vesicles, produced by a large variety of amphiphilic molecules and polymers with nematic phase, smectic phase or crystalline phase. It is highlighted how the phase transitions and the phase grain boundaries could be used ingeniously to destabilize the vesicular structure and to achieve cargo-release under the action of external stimulation. These liposomes and polymersomes are responsive to physical stimuli, such as temperature variation, shear stress, light illumination, and magnetic and electric fields. These stimuli-responsive properties make them promising candidates as new smart drug delivery systems.
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Affiliation(s)
- Yangwei Deng
- Chimie ParisTech, PSL University Paris, CNRS, Institut de Recherche de Chimie Paris, UMR8247, 11 rue Pierre et Marie Curie, 75005 Paris, France.
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23
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24
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Barber DM, Crosby AJ, Emrick T. Mesoscale Block Copolymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706118. [PMID: 29380431 DOI: 10.1002/adma.201706118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 12/08/2017] [Indexed: 06/07/2023]
Abstract
Materials composed of well-defined mesoscale building blocks are ubiquitous in nature, with noted ability to assemble into hierarchical structures possessing exceptional physical and mechanical properties. Fabrication of similar synthetic mesoscale structures will offer opportunities for precise conformational tuning toward advantageous bulk properties, such as increased toughness or elastic modulus. This requires new materials designs to be discovered to impart such structural control. Here, the preparation of mesoscale polymers is achieved by solution fabrication of functional polymers containing photoinduced chemical triggers. Subsequent photopatterning affords mesoscale block copolymers composed of distinct segments of alternating chemical composition. When dispersed in appropriate solvents, selected segments form helices to generate architectures resembling block copolymers, but on an optically observable size scale. This approach provides a platform for producing mesoscale geometries with structural control and potential for driving materials assembly comparable to examples found in nature.
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Affiliation(s)
- Dylan M Barber
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Amherst, MA, 01003-9263, USA
| | - Alfred J Crosby
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Amherst, MA, 01003-9263, USA
| | - Todd Emrick
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Amherst, MA, 01003-9263, USA
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25
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Huo M, Wan Z, Zeng M, Wei Y, Yuan J. Polymerization-induced self-assembly of liquid crystalline ABC triblock copolymers with long solvophilic chains. Polym Chem 2018. [DOI: 10.1039/c8py00643a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Polymerization-induced self-assembly was exploited to investigate the self-assembly behavior of liquid crystalline triblock copolymers with long solvophilic chains.
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Affiliation(s)
- Meng Huo
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education
- Department of Chemistry
- Tsinghua University
- Beijing
- China
| | - Zhengyi Wan
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education
- Department of Chemistry
- Tsinghua University
- Beijing
- China
| | - Min Zeng
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education
- Department of Chemistry
- Tsinghua University
- Beijing
- China
| | - Yen Wei
- Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education
- Department of Chemistry
- Tsinghua University
- Beijing
- China
| | - Jinying Yuan
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education
- Department of Chemistry
- Tsinghua University
- Beijing
- China
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26
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Wu D, Xu F, Huang Y, Chen C, Yu C, Feng X, Yan D, Mai Y. Effect of Side Chains on the Low-Dimensional Self-Assembly of Polyphenylene-Based “Rod–Coil” Graft Copolymers in Solution. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dongdong Wu
- School
of Chemistry and Chemical Engineering, Shanghai Key Laboratory of
Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Fugui Xu
- School
of Chemistry and Chemical Engineering, Shanghai Key Laboratory of
Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yinjuan Huang
- School
of Chemistry and Chemical Engineering, Shanghai Key Laboratory of
Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Chuanshuang Chen
- School
of Chemistry and Chemical Engineering, Shanghai Key Laboratory of
Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Chunyang Yu
- School
of Chemistry and Chemical Engineering, Shanghai Key Laboratory of
Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xinliang Feng
- Department
of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062 Dresden, Germany
| | - Deyue Yan
- School
of Chemistry and Chemical Engineering, Shanghai Key Laboratory of
Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yiyong Mai
- School
of Chemistry and Chemical Engineering, Shanghai Key Laboratory of
Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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27
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Guan Z, Liu D, Lin J, Wang X. Aqueous self-assembly of hydrophobic macromolecules with adjustable rigidity of the backbone. SOFT MATTER 2017; 13:5130-5136. [PMID: 28657106 DOI: 10.1039/c7sm01101f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
P(FpC3P) (Fp: CpFe(CO)2; C3P: propyl diphenyl phosphine) has a helical backbone, resulting from piano stool metal coordination geometry, which is rigid with intramolecular aromatic interaction of the phenyl groups. The macromolecule is hydrophobic, but the polarized CO groups can interact with water for aqueous self-assembly. The stiffness of P(FpC3P), which is adjustable by temperature, is an important factor influencing the morphologies of kinetically trapped assemblies. P(FpC3P)7 self-assembles in DMSO/water (10/90 by volume) into lamellae at 25 °C, vesicles at 40 °C and irregular aggregates at higher temperatures (60 and 70 °C). The colloidal stability decreases in the order of lamellae, vesicles and irregular aggregates. Dissipative particle dynamics (DPD) simulation reveals the same temperature-dependent self-assembled morphologies with an interior of hydrophobic aromatic groups covered with the metal coordination units. The rigid backbone at 25 °C accounts for the formation of the layered morphology, while the reduced rigidity of the same P(FpC3P)7 at 40 °C curves up the lamellae into vesicles. At a higher temperature (60 or 70 °C), P(FpC3P)7 behaves as a random coil without obvious amphiphilic segregation, resulting in irregular aggregates. The stiffness is, therefore, a crucial factor for the aqueous assembly of macromolecules without obvious amphiphilic segregation, which is reminiscent of the solution behavior observed for many hydrophobic biological macromolecules such as proteins.
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Affiliation(s)
- Zhou Guan
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China.
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28
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Zhang Y, Cao M, Yuan B, Guo T, Zhang W. RAFT synthesis and micellization of a photo-, temperature- and pH-responsive diblock copolymer based on spiropyran. Polym Chem 2017. [DOI: 10.1039/c7py01714f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photo-, temperature- and pH-responsive diblock copolymer containing a rigid spiropyran moiety was synthesized and its micellization was investigated.
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Affiliation(s)
- Yuan Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Mengjiao Cao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Bing Yuan
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Tianying Guo
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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