1
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Punia K, Britton D, Hüll K, Yin L, Wang Y, Renfrew PD, Gilchrist ML, Bonneau R, Trauner D, Montclare JK. Fluorescent azobenzene-confined coiled-coil mesofibers. SOFT MATTER 2023; 19:497-501. [PMID: 36538008 DOI: 10.1039/d2sm01578a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Fluorescent protein biomaterials have important applications such as bioimaging in pharmacological studies. Self-assembly of proteins, especially into fibrils, is known to produce fluorescence in the blue band. Capable of self-assembly into nanofibers, we have shown we can modulate its aggregation into mesofibers by encapsulation of a small hydrophobic molecule. Conversely, azobenzenes are hydrophobic small molecules that are virtually non-fluorescent in solution due to their highly efficient photoisomerization. However, they demonstrate fluorogenic properties upon confinement in nanoscale assemblies by reducing the non-radiative photoisomerization. Here, we report the fluorescence of a hybrid protein-small molecule system in which azobenzene is confined in our protein assembly leading to fiber thickening and increased fluorescence. We show our engineered protein Q encapsulates AzoCholine, bearing a photoswitchable azobenzene moiety, in the hydrophobic pore to produce fluorescent mesofibers. This study further investigates the photocontrol of protein conformation as well as fluorescence of an azobenze-containing biomaterial.
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Affiliation(s)
- Kamia Punia
- Departments of Chemical and Biomolecular Engineering, Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, New York 11201, USA.
| | - Dustin Britton
- Departments of Chemical and Biomolecular Engineering, Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, New York 11201, USA.
| | - Katharina Hüll
- Department of Chemistry, New York University, New York, New York 10003, USA
- Department of Chemistry, Ludwig Maximilian University, München, Germany
| | - Liming Yin
- Departments of Chemical and Biomolecular Engineering, Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, New York 11201, USA.
| | - Yifei Wang
- Departments of Chemical and Biomolecular Engineering, Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, New York 11201, USA.
| | - P Douglas Renfrew
- Center for Computational Biology, Flatiron Institute, New York, NY 10010, USA
| | - M Lane Gilchrist
- Department of Chemical Engineering and Biomedical Engineering, The City College of the City University of New York, New York, New York 10031, USA
| | - Richard Bonneau
- Center for Genomics and Systems Biology, Department of Biology, New York University New York, New York 10003, USA
| | - Dirk Trauner
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jin K Montclare
- Departments of Chemical and Biomolecular Engineering, Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, New York 11201, USA.
- Department of Chemistry, New York University, New York, New York 10003, USA
- Department of Biomaterials, NYU College of Dentistry, New York, NY, 10010, USA
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2
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Zhang P, Zhong Q, Qi D, Müller-Buschbaum P. Facile Preparation of Silk Fabrics with Enhanced UV Radiation Shielding and Wrinkle Resistance by Cross-Linking Light-Responsive Copolymers. ACS APPLIED MATERIALS & INTERFACES 2022; 14:27187-27194. [PMID: 35666674 DOI: 10.1021/acsami.2c05726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Enhanced UV radiation shielding is realized by cross-linking the light-responsive copolymer poly(di(ethylene glycol)methyl ether methacrylate-co-oligo(ethylene glycol)methyl ether methacrylate-co-ethylene glycol methacrylate-co-6-(4-phenylazo-phenoxy)hexyl methacrylate), abbreviated as PMOEA, with silk fabrics. Owing to the existence of the azobenzene component in 6-(4-phenylazo-phenoxy)hexyl methacrylate, UV radiation can be significantly absorbed in an aqueous PMOEA solution by the trans-cis isomerization of azobenzene. After immobilization onto the silk fabrics by the cross-linker 1,2,3,4-butanetetracarboxylic acid, the cross-linked copolymer-coated silk fabrics present an enhanced capability of UV radiation absorption. More than 70% of the UV radiation is efficiently shielded by the cross-linked copolymer-coated silk fabrics, which is double that of the original silk fabrics. Considering the limited amount of the light-responsive copolymer applied (5 wt %), UV protection is successfully realized for the silk fabrics. In addition, the cross-linked copolymer layer also forms covalent bonds with the hydroxyl and amino groups on the silk fabrics. Wrinkles on the silk fabrics, typically caused by the movement of the silk chains, are suppressed by the formed covalent bonds, significantly hindering such chain movement. Therefore, the wrinkle resistance capability is also improved by cross-linking PMOEA on silk fabrics. As the glass transition temperature of the copolymer is lower than room temperature, the hand feel of silk fabrics is not affected by the cross-linking layer. Based on these advantages, the cross-linked copolymer-coated silk fabrics can be used for light clothes to shield against UV radiation from the sun during outdoor activities in summer.
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Affiliation(s)
- Panpan Zhang
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Provincial Engineering Research Center for Green and Low-Carbon Dyeing & Finishing, Zhejiang Sci-Tech University, 928 Second Avenue, 310018 Hangzhou, China
| | - Qi Zhong
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Provincial Engineering Research Center for Green and Low-Carbon Dyeing & Finishing, Zhejiang Sci-Tech University, 928 Second Avenue, 310018 Hangzhou, China
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Dongming Qi
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Provincial Engineering Research Center for Green and Low-Carbon Dyeing & Finishing, Zhejiang Sci-Tech University, 928 Second Avenue, 310018 Hangzhou, China
- Key Laboratory of Green Cleaning Technology & Detergent of Zhejiang Province, 323000 Lishui, China
| | - Peter Müller-Buschbaum
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
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3
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Manipulating the structures and photoresponsive properties of an azobenzene-containing triblock copolymer by changing solvency and adding salts. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Zheng M, Yuan J. Polymeric nanostructures based on azobenzene and their biomedical applications: synthesis, self-assembly and stimuli-responsiveness. Org Biomol Chem 2021; 20:749-767. [PMID: 34908082 DOI: 10.1039/d1ob01823j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Amphiphilic polymers can self-assemble to form nanoparticles with different structures under suitable conditions. Polymer nanoparticles functionalized with aromatic azo groups are endowed with photo-responsive properties. In recent years, a variety of photoresponsive polymers and nanoparticles have been developed based on azobenzene, using different molecular design strategies and synthetic routes. This article reviews the progress of this rapidly developing research field, focusing on the structure, synthesis, assembly and response of photo-responsive polymer assemblies. According to the molecular structure, photo-responsive polymers can be divided into linear polymers containing azobenzene in a side chain, linear polymers containing azobenzene in the main chain, linear polymers containing azobenzene in an end group, branched polymers containing azobenzene and supramolecular polymers containing azobenzene. These systems have broad biomedical application prospects in the field of drug delivery and imaging applications.
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Affiliation(s)
- Mingxin Zheng
- Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China.
| | - Jinying Yuan
- Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China.
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5
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Abstract
The reversible photoisomerization of azobenzenes has been extensively studied to construct systems with optical responsiveness; however, this process limits the luminescence of these compounds. Recently, there have been many efforts to design and synthesize fluorescent azobenzene compounds, such as inhibition of electron transfer, inducing aggregation, and metal-enhancement, which make the materials ideal for application in fluorescence probes, light-emitting devices, molecular detection, etc. Herein, we review the recently reported progress in the development of various fluorescent azobenzenes and summarize the possible mechanism of their fluorescence emission. The potential applications of these materials are also discussed. Finally, in order to guide research in this field, the existing problems and future development prospects are discussed.
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6
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Ma JY, Hsu KL, Mata JP, Wu CM, Lo CT. Solvency and salt addition influence the photoresponsivity and fluorescence in an azobenzene-containing block copolymer. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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7
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Wang M, He K, Li J, Shen T, Li Y, Xu Y, Yuan C, Dai L. Dual pH-responsive charge-reversal and photo-crosslinkable polymer nanoparticles for controlled drug release. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:849-868. [DOI: 10.1080/09205063.2020.1725279] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Meijie Wang
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
| | - Kaiwei He
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, China
| | - Jilu Li
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
| | - Tong Shen
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
| | - Yang Li
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
| | - Yiting Xu
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, China
| | - Conghui Yuan
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, China
| | - Lizong Dai
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, China
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8
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Spiridon MC, Demazy N, Brochon C, Cloutet E, Hadziioannou G, Aissou K, Fleury G. Optical Alignment of Si-Containing Nanodomains Formed by Photoresponsive Amorphous Block Copolymer Thin Films. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b01551] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Nils Demazy
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
| | - Cyril Brochon
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
| | - Eric Cloutet
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
| | | | - Karim Aissou
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
| | - Guillaume Fleury
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
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9
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Ansari M, Hassan A, Alam A, Jana A, Das N. Triptycene based fluorescent polymers with azo motif pendants: Effect of alkyl chain on fluorescence, morphology and picric acid sensing. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2019.104408] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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10
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Guo H, Cheng X, Li H, Li J, Wei J, Feng C. Synthesis, micellar structures and emission mechanisms of an AIE and DDED-featured fluorescent pH- and thermo-meter. RSC Adv 2020; 10:23532-23542. [PMID: 35517342 PMCID: PMC9054736 DOI: 10.1039/d0ra01000f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 05/29/2020] [Indexed: 11/29/2022] Open
Abstract
A new nanoprobe, the luminescent diblock copolymer PNIPAM(MAh-4)-b-P4VP (PN4P), with pH- and thermo-responsive deprotonation-driven emission decay (DDED) and aggregation-induced emission (AIE) features was designed and synthesized. The nanoprobe PN4P can form micellar structures in water with reversible dual-responsive fluorescence (FL) behavior within a wide pH range of 2–11. The critical solution temperature was found at about 32, 30 and 27 °C as the pH switched from 2, 7 to 11. The critical pH value of the probe was about 4.0, and the micelles showed a core–shell inversion in response to pH and thermal stimuli, accompanied by a desirable emission tunability. P4VP as the micellar shell at pH = 2 was more easily dehydrated with the increase in temperature as compared to PNIPAM as the micellar shell at pH > 4. The strongest dehydration of the P4VP shell would make PN4P the most strongly aggregated and the most AIE-active, which supports the 2.10-fold most distinguished thermal-responsive emission enhancement at pH = 2. Moreover, a dramatic acidochromic redshift of the emission band from 450 (pH > 4) to 490 nm (pH = 2) was observed, and the maximum emission at pH = 2 was enhanced by about 2.07-fold as compared with that at pH = 7. Therefore, the probe displays the desired dual responses and good reversibility. AIE and DDED are the two major mechanisms responsible for the dual-responsive emission change, with AIE playing a more important role than DDED. This work offers a promising approach to interpreting temperature (range from 28 to 40 °C) and pH changes (range from 2 to 7) in water. A nanoprobe in water features pH- and thermal-responsive micellar/clustering structures, deprotonation-driven emission decay (DDED) and aggregation-induced emission (AIE).![]()
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Affiliation(s)
- He Guo
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
| | - Xiaomeng Cheng
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Hongping Li
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
| | - Jun Li
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
| | - Jinjin Wei
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
| | - Chongyang Feng
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
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11
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Tai HT, Lin YC, Ma JY, Lo CT. Hydrogen Bonding-Induced Assembled Structures and Photoresponsive Behavior of Azobenzene Molecule/Polyethylene Glycol Complexes. Polymers (Basel) 2019; 11:E1360. [PMID: 31426429 PMCID: PMC6723479 DOI: 10.3390/polym11081360] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/15/2019] [Accepted: 08/15/2019] [Indexed: 11/22/2022] Open
Abstract
We investigated the self-assembled structures and photoresponsive and crystallization behaviors of supramolecules composed of 4-methoxy-4'-hydroxyazobenzene (Azo) molecules and polyethylene glycol (PEG) that were formed through hydrogen-bonding interactions. The Azo/PEG complexes exhibited the characteristics of photoresponse and crystallization, which originated from Azo and PEG, respectively. When Azo/PEG complexes were dissolved in solvents, hydrogen-bonding interaction hindered the rotation and inversion of mesogens, causing a reduction in the photoisomerization rate compared with the photoisomerization rate of the neat Azo. The confinement of Azo/PEG complexes in thin films further resulted in a substantial decrease in the photoisomerization rate but an increase in the amounts of H-aggregated and J-aggregated mesogens. Regarding PEG crystallization, ultraviolet irradiation of Azo/PEG complexes increased the quantity of high-polarity cis isomers, which improved the compatibility between mesogens and PEG, subsequently increasing the crystallization temperature of PEG. Moreover, the complexation of Azo and PEG induced microphase separation, forming a lamellar morphology. Within the Azo-rich microphases, mesogens aggregated to form tilted monosmectic layers. By contrast, PEG crystallization within the PEG-rich microphases was hard confined, indicating that the domain size of the lamellar morphology was unchanged during PEG crystallization.
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Affiliation(s)
- Hsin-Tzu Tai
- Department of Chemical Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan
| | - Yen-Chun Lin
- Department of Chemical Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan
| | - Jing-Yao Ma
- Department of Chemical Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan
| | - Chieh-Tsung Lo
- Department of Chemical Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan.
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12
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Zenati A, Thammalangsy S. RAFT synthesis, properties and morphologies via thermal annealing of new azo-based ABA triblock copolymers bearing rigid and soft segments. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2019. [DOI: 10.1080/1023666x.2019.1649056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Athmen Zenati
- Department of Chemistry, Faculty of Natural Sciences, Hanyang University, Seoul, Korea
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13
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Qian S, Li S, Xiong W, Khan H, Huang J, Zhang W. A new visible light and temperature responsive diblock copolymer. Polym Chem 2019. [DOI: 10.1039/c9py01050e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A visible light and temperature responsive diblock copolymer of poly[6-(2,6,2′,6′-tetramethoxy-4′-oxyazobenzene) hexyl methacrylate]-block-poly(N-isopropylacrylamide) (PmAzo-b-PNIPAM) was synthesized via RAFT polymerization by carefully tuning the polymerization conditions.
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Affiliation(s)
- Sijia Qian
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Shenzhen Li
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Weifeng Xiong
- State Key Laboratory of Special Functional Waterproof Materials
- Beijing Oriental Yuhong Waterproof Technology Co
- Ltd
- Beijing 100123
- China
| | - Habib Khan
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Jing Huang
- Sinopec Research Institute of Petroleum Engineering
- Beijing
- China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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14
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Huang PC, Mata JP, Wu CM, Lo CT. Morphology-Mediated Photoresponsive and Fluorescence Behaviors of Azobenzene-Containing Block Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7416-7427. [PMID: 29863876 DOI: 10.1021/acs.langmuir.8b01033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We investigated the relationship between the self-assembled morphology of poly( tert-butyl acrylate)- block-poly(6-[4-(4'-methoxyphenylazo)phenoxy]hexyl methacrylate) (P tBA- b-PAzoMA) block copolymers and their photoresponsive and fluorescence behaviors. The morphology of P tBA- b-PAzoMA copolymers was manipulated by dissolving them in mixed dimethylformamide (DMF)/hexanol solvents. When P tBA- b-PAzoMA was dissolved in DMF-rich (neutral) solvents, a favorable interaction between the DMF molecules and both blocks resulted in a random-coiled conformation. The unconfined morphology facilitated the formation of both nonassociated and head-to-head organized azobenzene mesogens, which promoted fluorescence emission. When hexanol, a P tBA-selective solvent, was added to DMF, the solvency of P tBA- b-PAzoMA worsened, leading to its assembly into micelles, with PAzoMA in the micelle core. The confinement of azobenzene moieties in the micelle core hindered their trans-to- cis photoisomerization, thereby considerably decreasing the kinetics of photoisomerization and the population of cis isomers. Additionally, a nanoconfined geometry resulted in compactly packed chromophores, causing fluorescence loss. When P tBA- b-PAzoMA was exposed to UV light, the increased number of cis isomers hampered the closely packed mesogens, resulting in a substantial enhancement of fluorescence emission. When the mole fraction of the PAzoMA block was increased, P tBA- b-PAzoMA formed clusters, causing the slow kinetics of photoisomerization and fluorescence quenching.
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Affiliation(s)
- Pin-Chi Huang
- Department of Chemical Engineering , National Cheng Kung University , Tainan City 701 , Taiwan
| | - Jitendra P Mata
- Australian Centre for Neutron Scattering , Australian Nuclear Science and Technology Organization , Lucas Heights , New South Wales 2234 , Australia
| | - Chun-Ming Wu
- National Synchrotron Radiation Research Center , 101 Hsin-Ann Road, Hsinchu Science Park , Hsinchu 30076 , Taiwan
| | - Chieh-Tsung Lo
- Department of Chemical Engineering , National Cheng Kung University , Tainan City 701 , Taiwan
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15
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Zenati A, Han YK. Synthesis and Properties of Azo-Based ABC Triblock Copolymers Owning Interaction and Composition Parameters That Influence Their Phase Behaviors. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Athmen Zenati
- Functional Organic Materials
Laboratory (FOML), Department of Chemistry, Faculty of Natural Sciences, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea
| | - Yang-Kyoo Han
- Functional Organic Materials
Laboratory (FOML), Department of Chemistry, Faculty of Natural Sciences, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea
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16
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Zenati A, Han YK. Synthesis and characteristics of novel azo-based diblock copolymers and their self-assembly behavior via solvents and thermal annealing. E-POLYMERS 2017. [DOI: 10.1515/epoly-2017-0042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
AbstractA series of azo-based diblock copolymers (DBCs) with various compositions were successfully synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization in anisole with PCAEMA-CTA (macro-CTA), DOPAM (new acrylamide monomer) and AIBN (initiator). Kinetic studies on diblock copolymerization manifested a controlled/living manner with good molecular weight control. Structures and properties of monomers and DBCs were determined by 1H nuclear magnetic resonance (NMR), differential scanning calorimetry (DSC) and gel permeation chromatography (GPC). Liquid crystalline (LC) phases and morphological properties were investigated using optical polarizing microscope (OPM), atomic force microscopy (AFM), scanning electron microscopy (SEM) and small-angle X-ray scattering (SAXS). Experimental results demonstrated that the prepared PCAEMA-CTA and DBCs possessed low polydispersity index (≤1.37). All DBCs revealed sharp endothermic transition peaks corresponding to the smectic-to-nematic phase. DBCs with high azo contents showed batonnet textures of the smectic phase whereas DBCs of low azo segments displayed threaded textures of the nematic phase. DBC with 49 wt% of azo side-chains generated a lamellar compared to DBCs with low azo block (≤41 wt%) or non-azo block (≤38 wt%) which produced hexagonal-type nanostructures. In addition, all DBCs exhibited reversible trans-cis photoisomerization behavior under UV irradiation and dark storage at different intervals of time.
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Affiliation(s)
- Athmen Zenati
- Functional Organic Materials Laboratory (FOML), Department of Chemistry, Faculty of Natural Sciences, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea
| | - Yang-Kyoo Han
- Functional Organic Materials Laboratory (FOML), Department of Chemistry, Faculty of Natural Sciences, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea
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17
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Lee TL, Lo CT. Photoresponsive and fluorescence behaviors of azobenzene-containing amphiphilic block copolymers. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/polb.24323] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ting-Lei Lee
- Department of Chemical Engineering; National Cheng Kung University; No. 1, University Road Tainan City Taiwan 701
| | - Chieh-Tsung Lo
- Department of Chemical Engineering; National Cheng Kung University; No. 1, University Road Tainan City Taiwan 701
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18
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Multi-responsive fluorescence of amphiphilic diblock copolymer containing carboxylate azobenzene and N-isopropylacrylamide. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.05.074] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Ren H, Chen D, Shi Y, Yu H, Fu Z. A carboxylic azo monomer and its homopolymer: synthesis, self-organization and fluorescence behaviour in solution. Polym Chem 2015. [DOI: 10.1039/c4py01062k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The fluorescence of a carboxylic azo monomer and its homopolymer was studied in solution, which can be controlled by solvent polarity, pH value and photoirradiation.
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Affiliation(s)
- Hao Ren
- School of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Dong Chen
- School of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Yan Shi
- School of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Haifeng Yu
- Department of Materials Science and Engineering
- College of Engineering
- Peking University
- Beijing 100871
- P. R. China
| | - Zhifeng Fu
- School of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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Shi L, Ran X, Li Y, Li Q, Qiu W, Guo L. Photoresponsive structure transformation and emission enhancement based on a tapered azobenzene gelator. RSC Adv 2015. [DOI: 10.1039/c5ra06456b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Due to trans-to-cis photoisomerization of azobenzene unit, an enhanced fluorescence via J-aggregate molecular arrangement can be observed.
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Affiliation(s)
- Lili Shi
- Department of Physics
- School of Physics and Electronics
- Henan University
- Kaifeng 475004
- People's Republic of China
| | - Xia Ran
- Department of Physics
- School of Physics and Electronics
- Henan University
- Kaifeng 475004
- People's Republic of China
| | - Yajie Li
- Department of Physics
- School of Physics and Electronics
- Henan University
- Kaifeng 475004
- People's Republic of China
| | - Qiuyue Li
- Department of Physics
- School of Physics and Electronics
- Henan University
- Kaifeng 475004
- People's Republic of China
| | - Weihong Qiu
- Department of Physics
- Oregon State University
- Corvallis
- USA
| | - Lijun Guo
- Department of Physics
- School of Physics and Electronics
- Henan University
- Kaifeng 475004
- People's Republic of China
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Blasco E, Serrano JL, Piñol M, Oriol L. Light Responsive Vesicles Based on Linear–Dendritic Block Copolymers Using Azobenzene–Aliphatic Codendrons. Macromolecules 2013. [DOI: 10.1021/ma4009725] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Eva Blasco
- Departamento
de Química
Orgánica, Facultad de Ciencias - Instituto de Ciencia de Materiales
de Aragón (ICMA), Universidad de Zaragoza-CSIC, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - José Luis Serrano
- Departamento de Química
Orgánica, Facultad de Ciencias, Instituto de Nanociencia de
Aragón (INA), Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Milagros Piñol
- Departamento
de Química
Orgánica, Facultad de Ciencias - Instituto de Ciencia de Materiales
de Aragón (ICMA), Universidad de Zaragoza-CSIC, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Luis Oriol
- Departamento
de Química
Orgánica, Facultad de Ciencias - Instituto de Ciencia de Materiales
de Aragón (ICMA), Universidad de Zaragoza-CSIC, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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Sun W, He X, Liao X, Lin S, Huang W, Xie M. Synthesis of azobenzene-containing side chain liquid crystalline diblock copolymers using RAFT polymerization and photo-responsive behavior. J Appl Polym Sci 2013. [DOI: 10.1002/app.39407] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wuqiong Sun
- Department of Chemistry; East China Normal University; 500 Dongchuan Road; Shanghai; 200241; China
| | - Xiaohua He
- Department of Chemistry; East China Normal University; 500 Dongchuan Road; Shanghai; 200241; China
| | - Xiaojuan Liao
- Department of Chemistry; East China Normal University; 500 Dongchuan Road; Shanghai; 200241; China
| | - Shaoliang Lin
- Shanghai Key Laboratory of Advanced Polymer Materials, School of Materials Science and Engineering, East China University of Science and Technology; Shanghai; 200237; China
| | - Wei Huang
- Department of Chemistry; East China Normal University; 500 Dongchuan Road; Shanghai; 200241; China
| | - Meiran Xie
- Department of Chemistry; East China Normal University; 500 Dongchuan Road; Shanghai; 200241; China
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Sun W, He X, Gao C, Liao X, Xie M, Lin S, Yan D. Novel amphiphilic and photo-responsive ABC 3-miktoarm star terpolymers: synthesis, self-assembly and photo-responsive behavior. Polym Chem 2013. [DOI: 10.1039/c2py21043f] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Zhang H, Zhou N, Zhu X, Chen X, Zhang Z, Zhang W, Zhu J, Hu Z, Zhu X. Cyclic
Side-Chain Phenylazo Naphthalene Polymers: Enhanced Fluorescence Emission and Surface Relief Grating Formation. Macromol Rapid Commun 2012; 33:1845-51. [DOI: 10.1002/marc.201200415] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Indexed: 11/10/2022]
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Jeong SY, Moon HJ, Park MH, Joo MK, Jeong B. Molecular captain: A light-sensitive linker molecule in poly(ethylene glycol)-poly(L-alanine)-poly(ethylene glycol) triblock copolymer directs molecular nano-assembly, conformation, and sol-gel transition. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Chernikova EV, Vishnevetskii DV, Garina ES, Plutalova AV, Litmanovich EA, Korolev BA, Shlyakhtin AV, Kostina YV, Bondarenko GN. Controlled synthesis of multiblock copolymers by pseudoliving radical polymerization via the reversible addition-fragmentation chain-transfer mechanism. POLYMER SCIENCE SERIES B 2012. [DOI: 10.1134/s1560090412030025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Affiliation(s)
- Yue Zhao
- Département de chimie, Université de Sherbrooke, Sherbrooke, Québec,
Canada J1K 2R1
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Li Y, Zhou N, Zhang W, Zhang F, Zhu J, Zhang Z, Cheng Z, Tu Y, Zhu X. Light‐driven and aggregation‐induced emission from side‐chain azoindazole polymers. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24947] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ying Li
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Nianchen Zhou
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
- Jiangsu Key Laboratory for Carbon‐Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Wei Zhang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Feng Zhang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Jian Zhu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Zhengbiao Zhang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Zhenping Cheng
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Yingfeng Tu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Xiulin Zhu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
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Boyer C, Stenzel MH, Davis TP. Building nanostructures using RAFT polymerization. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24482] [Citation(s) in RCA: 280] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Synthesis, characterization and self-assembly of ion-bonded amphiphilic A2B miktoarm star copolymers containing an azobenzene unit at the core. Eur Polym J 2010. [DOI: 10.1016/j.eurpolymj.2010.04.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Xiang Y, Xue X, Zhu J, Zhang Z, Zhang W, Zhou N, Zhu X. Fluorescence behavior of an azobenzene-containing amphiphilic diblock copolymer. Polym Chem 2010. [DOI: 10.1039/c0py00147c] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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DNA-lipid complexes carrying azobenzene moieties: Preparation, characterization, and photoisomerization. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.09.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Boyer C, Bulmus V, Davis TP, Ladmiral V, Liu J, Perrier S. Bioapplications of RAFT Polymerization. Chem Rev 2009; 109:5402-36. [DOI: 10.1021/cr9001403] [Citation(s) in RCA: 829] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Cyrille Boyer
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences & Engineering, UNSW, Sydney, NSW 2052, Australia, Centre for Advanced Macromolecular Design (CAMD), School of Biotechnology & Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia, and Key Centre for Polymers & Colloids, School of Chemistry, Building F11, Eastern Avenue, The University of Sydney, NSW 2006, Australia
| | - Volga Bulmus
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences & Engineering, UNSW, Sydney, NSW 2052, Australia, Centre for Advanced Macromolecular Design (CAMD), School of Biotechnology & Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia, and Key Centre for Polymers & Colloids, School of Chemistry, Building F11, Eastern Avenue, The University of Sydney, NSW 2006, Australia
| | - Thomas P. Davis
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences & Engineering, UNSW, Sydney, NSW 2052, Australia, Centre for Advanced Macromolecular Design (CAMD), School of Biotechnology & Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia, and Key Centre for Polymers & Colloids, School of Chemistry, Building F11, Eastern Avenue, The University of Sydney, NSW 2006, Australia
| | - Vincent Ladmiral
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences & Engineering, UNSW, Sydney, NSW 2052, Australia, Centre for Advanced Macromolecular Design (CAMD), School of Biotechnology & Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia, and Key Centre for Polymers & Colloids, School of Chemistry, Building F11, Eastern Avenue, The University of Sydney, NSW 2006, Australia
| | - Jingquan Liu
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences & Engineering, UNSW, Sydney, NSW 2052, Australia, Centre for Advanced Macromolecular Design (CAMD), School of Biotechnology & Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia, and Key Centre for Polymers & Colloids, School of Chemistry, Building F11, Eastern Avenue, The University of Sydney, NSW 2006, Australia
| | - Sébastien Perrier
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences & Engineering, UNSW, Sydney, NSW 2052, Australia, Centre for Advanced Macromolecular Design (CAMD), School of Biotechnology & Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia, and Key Centre for Polymers & Colloids, School of Chemistry, Building F11, Eastern Avenue, The University of Sydney, NSW 2006, Australia
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Qu J, Jiang F, Chen H, Sanda F, Masuda T. Synthesis and photoisomerization of poly(1-methylpropargyl ester)s carrying azobenzene moieties. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23528] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zhang L, Zhang W, Zhou N, Zhu J, Zhang Z, Cheng Z, Zhu X. Preparation and Characterization of Linear and Miktoarm Star Side-Chain Liquid Crystalline block Copolymers withp-Methoxyazobenzene Moieties via a Combination of ATRP and ROP. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2009. [DOI: 10.1080/10601320903078164] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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