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Gong C, Cui L, Xiong D, Ding Y. In vitro drug release and cartilage interface lubrication properties of biomimetic polymers. J Mech Behav Biomed Mater 2024; 152:106439. [PMID: 38325166 DOI: 10.1016/j.jmbbm.2024.106439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/09/2024]
Abstract
Osteoarthritis is a degenerative disease that is widely found in the elderly population, with a trend towards a younger age group in recent years. In the early stages of arthritis, patients are treated with hyaluronic acid injections and anti-inflammatory drugs. However, it has been found that hyaluronic acid can only play a supportive role and does not have a lubricating effect, and due to the absence of blood vessels, nerves, and lymphatic vessels in the articular cartilage, the oral anti-inflammatory drugs cannot reach the interface of the inflammatory joints adequately, and the drug utilisation rate is low. Herein, we designed and prepared a brush-like bionic lubricant for joint lubrication and drug loading. The poly(2-methyl-2-oxazoline) branched chain was grafted onto the hyaluronic acid main chain by ring-opening polymerisation and graft polymerisation to form a brush-like bionic lubricin containing multiple hydrophilic groups, which was self-assembled to encapsulate the drug by using its multi-branched special structure for drug loading. The friction behaviour tests on the articular cartilage surface showed that the prepared bionic lubricin has excellent lubrication effect, with a minimum friction coefficient of 0.036 close to the lubrication effect of natural synovial fluid, which is mainly due to the hydrophilic groups on its molecular chain that can adsorb the water molecules and form a hydration layer at the cartilage interface, which plays the role of hydration lubrication. In addition, in vitro drug release studies showed that the synthesised drug-loading biomimetic lubricin had a certain drug release capacity, and the maximum drug release rate could reach 77.8 % at 72 h. The synthesis of this bionic lubricant with dual functions of lubrication and drug release provides a new idea for the treatment of osteoarthritis.
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Affiliation(s)
- Chenyang Gong
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210009, Jiangsu, PR China
| | - Lingling Cui
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210009, Jiangsu, PR China
| | - Dangsheng Xiong
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210009, Jiangsu, PR China.
| | - Yan Ding
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210009, Jiangsu, PR China
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2
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Alkattan N, Alasmael N, Ladelta V, Khashab NM, Hadjichristidis N. Poly(2-oxazoline)-based core cross-linked star polymers: synthesis and drug delivery applications. NANOSCALE ADVANCES 2023; 5:2794-2803. [PMID: 37205291 PMCID: PMC10187039 DOI: 10.1039/d3na00116d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 04/05/2023] [Indexed: 05/21/2023]
Abstract
Poly(2-oxazoline)s (POxs) are promising platforms for drug delivery applications due to their biocompatibility and stealth properties. In addition, the use of core cross-linked star (CCS) polymers based on POxs is expected to enhance drug encapsulation and release performances. In this study, we employed the "arm-first" strategy to synthesize a series of amphiphilic CCS [poly(2-methyl-2-oxazoline)]n-block-poly(2,2'-(1,4-phenylene)bis-2-oxazoline)-cross-link/copolymer-(2-n-butyl-2-oxazoline)s (PMeOx)n-b-P(PhBisOx-cl/co-ButOx)s by using microwave-assisted cationic ring-opening polymerization (CROP). First, PMeOx, as the hydrophilic arm, was synthesized by CROP of MeOx using methyl tosylate as the initiator. Subsequently, the living PMeOx was used as the macroinitiator to initiate the copolymerization/core-crosslinking reaction of ButOx and PhBisOx to form CCS POxs having a hydrophobic core. The molecular structures of the resulting CCS POxs were characterized by size exclusion chromatography and nuclear magnetic resonance spectroscopy. The CCS POxs were loaded with the anti-cancer drug doxorubicin (DOX), and the loading was detected by UV-vis spectrometry, dynamic light scattering, and transmission electron microscopy. In vitro studies showed that DOX release at pH 5.2 was faster than that at pH 7.1. The in vitro cytotoxicity study using HeLa cells revealed that the neat CCS POxs are compatible with the cells. In contrast, the DOX-loaded CCS POxs exhibited a cytotoxic effect in a concentration-dependent manner in HeLa cells, which strongly supports that the CSS POxs are potential candidates for drug delivery applications.
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Affiliation(s)
- Nedah Alkattan
- Polymer Synthesis Laboratory, Chemistry Program, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia +966-(0)12-8080789
- Refining and Petrochemical Technologies Institute, King Abdulaziz City for Science and Technology P. O Box 6086 Riyadh 11442 Saudi Arabia
| | - Noura Alasmael
- Smart Hybrid Materials (SHMs) Laboratory, Chemistry Program, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia +966-(0)12-8080789
| | - Viko Ladelta
- Polymer Synthesis Laboratory, Chemistry Program, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia +966-(0)12-8080789
| | - Niveen M Khashab
- Smart Hybrid Materials (SHMs) Laboratory, Chemistry Program, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia +966-(0)12-8080789
| | - Nikos Hadjichristidis
- Polymer Synthesis Laboratory, Chemistry Program, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia +966-(0)12-8080789
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3
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Delecourt G, Plet L, Guen YL, Tezgel O, Tresset G, Midoux P, Montier T, Bennevault V, Guégan P. Synthesis of Double Hydrophilic Block Copolymers Poly(2-isopropyl-2-oxazoline-b-ethylenimine) and their DNA Transfection Efficiency. Macromol Biosci 2023; 23:e2200296. [PMID: 36189853 DOI: 10.1002/mabi.202200296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/20/2022] [Indexed: 01/19/2023]
Abstract
Gene delivery is now a part of the therapeutic arsenal for vaccination and treatments of inherited or acquired diseases. Polymers represent an opportunity to develop new synthetic vectors for gene transfer, with a prerequisite of improved delivery and reduced toxicity compared to existing polymers. Here, the synthesis in a two-step's procedure of linear poly(ethylenimine-b-2-isopropyl-2-oxazoline) block copolymers with the linear polyethylenimine (lPEI) block of various molar masses is reported; the molar mass of the poly(2-isopropyl-2-oxazoline) (PiPrOx) block has been set to 7 kg mol-1 . Plasmid DNA condensation is successfully achieved, and in vitro transfection efficiency of the copolymers is at least comparable to that obtained with the lPEI of same molar mass. lPEI-b-PiPrOx block copolymers are however less cytotoxic than their linear counterparts. PiPrOx can be a good alternative to PEG which is often used in drug delivery systems. The grafting of histidine moieties on the lPEI block of lPEI-b-PiPrOx does not provide any real improvement of the transfection efficiency. A weak DNA condensation is observed, due to increased steric hindrance along the lPEI backbone. The low cytotoxicity of lPEI-b-PiPrOx makes this family a good candidate for future gene delivery developments.
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Affiliation(s)
- Gwendoline Delecourt
- Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, UMR 8232 CNRS, Sorbonne University, Paris, Cedex 05, 75252, France
| | - Laetitia Plet
- Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, UMR 8232 CNRS, Sorbonne University, Paris, Cedex 05, 75252, France
| | - Yann Le Guen
- INSERM, EFS, UMR 1078, GGB - GTCA team, Univ Brest, Brest, 29200, France
| | - Ozgul Tezgel
- CNRS, Laboratoire de Physique des Solides, University of Paris-Saclay, Orsay, 91405, France
| | - Guillaume Tresset
- CNRS, Laboratoire de Physique des Solides, University of Paris-Saclay, Orsay, 91405, France
| | - Patrick Midoux
- CNRS UPR4301, Centre de Biophysique Moléculaire, Orléans, Cedex 2, 45071, France
| | - Tristan Montier
- INSERM, EFS, UMR 1078, GGB - GTCA team, Univ Brest, Brest, 29200, France.,CHRU de Brest, Service de Génétique Médicale et de Biologie de la Reproduction, Centre de Référence des Maladies Rares "Maladies Neuromusculaires", Brest, 29200, France
| | - Véronique Bennevault
- Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, UMR 8232 CNRS, Sorbonne University, Paris, Cedex 05, 75252, France.,University of Evry, Evry, Cedex, 91025, France
| | - Philippe Guégan
- Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, UMR 8232 CNRS, Sorbonne University, Paris, Cedex 05, 75252, France
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4
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Poly(2-oxazoline)-derived star-shaped polymers as potential materials for biomedical applications: A review. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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5
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Blokhin AN, Dudkina MM, Tenkovtsev AV. Ionic Ring-Opening Polymerization for the Synthesis of Star-Shaped Polymers. POLYMER SCIENCE SERIES C 2022. [DOI: 10.1134/s1811238222700187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Aliakseyeu A, Ankner JF, Sukhishvili SA. Impact of Star Polyacid Branching on Polymer Diffusion within Multilayer Films. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aliaksei Aliakseyeu
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - John F. Ankner
- Spallation Neutron Source Second Target Station Project, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Svetlana A. Sukhishvili
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
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Mazrad ZAI, Lai M, Davis TP, Nicolazzo JA, Thurecht KJ, Leiske MN, Kempe K. Protected amine-functional initiators for the synthesis of α-amine homo- and heterotelechelic poly(2-ethyl-2-oxazoline)s. Polym Chem 2022. [DOI: 10.1039/d2py00649a] [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
Screening a series of protected amine cationic ring-opening polymerization initiators revealed the commercially available N-(3-bromopropyl)phthalimide as the most suitable to achieve defined polymers with high degree of amine functionalization.
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Affiliation(s)
- Zihnil A. I. Mazrad
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - May Lai
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Thomas P. Davis
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Australia
| | - Joseph A. Nicolazzo
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Kristofer J. Thurecht
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Australia
- Centre for Advanced Imaging, The University of Queensland, Australia
| | - Meike N. Leiske
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Kristian Kempe
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
- Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
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8
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Hayes G, Drain B, Becer CR. Multiarm Core Cross-Linked Star-Shaped Poly(2-oxazoline)s Using a Bisfunctional 2-Oxazoline Monomer. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c02245] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Graham Hayes
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
| | - Ben Drain
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - C. Remzi Becer
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
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9
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Bullet JR, Korchagina EV, Winnik FM. High-Sensitivity Microcalorimetry and Gel Permeation Chromatography in Tandem Reveal the Complexity of the Synthesis of Poly-(2-isopropyl-2-oxazoline) Stars. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jean-Richard Bullet
- Department of Chemistry and Faculty of Pharmacy, University of Montreal, CP 6128 Succursale Centre Ville, Montreal, QC H3C 3J7, Canada
| | - Evgeniya V. Korchagina
- Department of Chemistry and Faculty of Pharmacy, University of Montreal, CP 6128 Succursale Centre Ville, Montreal, QC H3C 3J7, Canada
| | - Françoise M. Winnik
- Department of Chemistry and Faculty of Pharmacy, University of Montreal, CP 6128 Succursale Centre Ville, Montreal, QC H3C 3J7, Canada
- Department of Chemistry, University of Helsinki, P.O. Box 55 (A.I. Virtasen aukio1), Helsinki FI-00014, Finland
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10
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Nekrasova TN, Kirila TY, Kurlykin MP, Ten’kovtsev AV, Filippov AP. Interpolymer Complexes of Star-Shaped Copolymers of Polyoxazoline with the Calixarene Core and Linear Polyacids in Solution. POLYMER SCIENCE SERIES B 2021. [DOI: 10.1134/s1560090421020081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Roma E, Corsi P, Willinger M, Leitner NS, Zirbs R, Reimhult E, Capone B, Gasperi T. Theoretical and Experimental Design of Heavy Metal-Mopping Magnetic Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2021; 13:1386-1397. [PMID: 33389993 PMCID: PMC8021223 DOI: 10.1021/acsami.0c17759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
Herein, we show a comprehensive experimental, theoretical, and computational study aimed at designing macromolecules able to adsorb a cargo at the nanoscale. Specifically, we focus on the adsorption properties of star diblock copolymers, i.e., macromolecules made by a number f of H-T diblock copolymer arms tethered on a central core; the H monomeric heads, which are closer to the tethering point, are attractive toward a specific target, while the T monomeric tails are neutral to the cargo. Experimentally, we exploited the adaptability of poly(2-oxazoline)s (POxs) to realize block copolymer-coated nanoparticles with a proper functionalization able to interact with heavy metals and show or exhibit a thermoresponsive behavior in aqueous solution. We here present the synthesis and analysis of the properties of a high molecular mass block copolymer featured by (i) a polar side chain, capable of exploiting electrostatic and hydrophilic interaction with a predetermined cargo, and (ii) a thermoresponsive scaffold, able to change the interaction with the media by tuning the temperature. Afterward, the obtained polymers were grafted onto iron oxide nanoparticles and the thermoresponsive properties were investigated. Through isothermal titration calorimetry, we then analyzed the adsorption properties of the synthesized superparamagnetic nanoparticles for heavy metal ions in aqueous solution. Additionally, we use a combination of scaling theories and simulations to link equilibrium properties of the system to a prediction of the loading properties as a function of size ratio and effective interactions between the considered species. The comparison between experimental results on adsorption and theoretical prediction validates the whole design process.
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Affiliation(s)
- Elia Roma
- Dipartimento
di Scienze, Universitá degli Studi
Roma Tre, Via della Vasca Navale 84, 00146 Roma, Italy
| | - Pietro Corsi
- Dipartimento
di Scienze, Universitá degli Studi
Roma Tre, Via della Vasca Navale 84, 00146 Roma, Italy
| | - Max Willinger
- Department
of Material Sciences and Process Engineering, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Strasse 82, A-1190 Vienna, Austria
| | - Nikolaus Simon Leitner
- Department
of Material Sciences and Process Engineering, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Strasse 82, A-1190 Vienna, Austria
| | - Ronald Zirbs
- Department
of Material Sciences and Process Engineering, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Strasse 82, A-1190 Vienna, Austria
| | - Erik Reimhult
- Department
of Material Sciences and Process Engineering, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Strasse 82, A-1190 Vienna, Austria
| | - Barbara Capone
- Dipartimento
di Scienze, Universitá degli Studi
Roma Tre, Via della Vasca Navale 84, 00146 Roma, Italy
| | - Tecla Gasperi
- Dipartimento
di Scienze, Universitá degli Studi
Roma Tre, Via della Vasca Navale 84, 00146 Roma, Italy
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Monaco A, Drain B, Becer CR. Detailed GPC analysis of poly( N-isopropylacrylamide) with core cross-linked star architecture. Polym Chem 2021. [DOI: 10.1039/d1py00966d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Core cross-linked star shaped polymers possess unique physical properties that can be utilized as drug transporters for biomedical applications.
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Affiliation(s)
- Alessandra Monaco
- Department of Chemistry, University of Warwick, CV4 7AL, Coventry, UK
- Polymer Chemistry Laboratory, School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Ben Drain
- Department of Chemistry, University of Warwick, CV4 7AL, Coventry, UK
- Polymer Chemistry Laboratory, School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - C. Remzi Becer
- Polymer Chemistry Laboratory, School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
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Zhao T, Drain B, Yilmaz G, Becer CR. One-pot synthesis of amphiphilic multiblock poly(2-oxazoline)s via para-fluoro-thiol click reactions. Polym Chem 2021. [DOI: 10.1039/d1py00944c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A clickable initiator, pentafluoro benzyl bromide, has been investigated for the cationic ring opening polymerization of poly(2-oxazolines).
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Affiliation(s)
- Tieshuai Zhao
- Department of Chemistry, University of Warwick, CV4 7AL, Coventry, UK
| | - Ben Drain
- Department of Chemistry, University of Warwick, CV4 7AL, Coventry, UK
| | - Gokhan Yilmaz
- Department of Chemistry, University of Warwick, CV4 7AL, Coventry, UK
| | - C. Remzi Becer
- Department of Chemistry, University of Warwick, CV4 7AL, Coventry, UK
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14
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Poly(2-oxazoline)s and polypeptoids. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Kirila T, Smirnova A, Razina A, Tenkovtsev A, Filippov A. Synthesis and Conformational Characteristics of Thermosensitive Star-Shaped Six-Arm Polypeptoids. Polymers (Basel) 2020; 12:polym12040800. [PMID: 32260090 PMCID: PMC7240544 DOI: 10.3390/polym12040800] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/25/2020] [Accepted: 03/28/2020] [Indexed: 11/16/2022] Open
Abstract
Star-shaped six-arm poly-2-alkyl-2-oxazine and poly-2-alkyl-2-oxazoline with hexaaza [26]orthoparacyclophane derivative core were synthesized successfully using cationic ring-opening polymerization. Conformational behavior of prepared polymer stars were investigated by the methods of molecular hydrodynamics and optics in molecular dispersed solutions. It was shown that conformation characteristics of star-shaped polypeptoids depends on arm length, while the chemical structure weakly affects the behavior of the studied polymers in solutions. This behavior is caused by the close equilibrium rigidity of arms. The star-shaped polypeptoids have relatively high intramolecular density. All synthesized stars exhibit LCST behavior. Phase separation temperature depends on arm structure. It is lower for poly-2-alkyl-2-oxazines, monomer units of which contains one methylene group more than monomers of poly-2-alkyl-2-oxazoline.
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