1
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Khalil AF, El-Moselhy TF, El-Bastawissy EA, Abdelhady R, Younis NS, El-Hamamsy MH. Discovery of novel enasidenib analogues targeting inhibition of mutant isocitrate dehydrogenase 2 as antileukaemic agents. J Enzyme Inhib Med Chem 2023; 38:2157411. [PMID: 36629449 PMCID: PMC9848300 DOI: 10.1080/14756366.2022.2157411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Mutant isocitrate dehydrogenase (IDH) 2 "IDH2m" acquires a neo-enzymatic activity reducing α-ketoglutarate to an oncometabolite, D-2-hydroxyglutarate (2-HG). Three s-triazine series were designed and synthesised using enasidenib as a lead compound. In vitro anticancer screening via National Cancer Institute "NCI" revealed that analogues 6a, 6c, 6d, 7g, and 7l were most potent, with mean growth inhibition percentage "GI%" = 66.07, 66.00, 53.70, 35.10, and 81.15, respectively, followed by five-dose screening. Compounds 6c, 6e, and 7c were established as the best IDH2R140Q inhibitors compared to enasidenib, reporting IC50 = 101.70, 67.01, 88.93, and 75.51 nM, respectively. More importantly, 6c, 6e, and 7c displayed poor activity against the wild-type IDH2, IC50 = 2928, 2295, and 3128 nM, respectively, which implementing high selectivity and accordingly safety. Furthermore, 6c was screened for cell cycle arrest, apoptosis induction, and western blot analysis. Finally, computational tools were applied to predict physicochemical properties and binding poses in IDH2R140Q allosteric site.
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Affiliation(s)
- Ahmed F. Khalil
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt,CONTACT A. F. Khalil Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Tarek F. El-Moselhy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Eman A. El-Bastawissy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Rasha Abdelhady
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt
| | - Nancy S. Younis
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al Hofuf, Saudi Arabia
| | - Mervat H. El-Hamamsy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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2
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Stewart KA, Lessard JJ, Cantor AJ, Rynk JF, Bailey LS, Sumerlin BS. High-performance polyimine vitrimers from an aromatic bio-based scaffold. RSC APPLIED POLYMERS 2023; 1:10-18. [PMID: 38013907 PMCID: PMC10540462 DOI: 10.1039/d3lp00019b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 05/18/2023] [Indexed: 11/29/2023]
Abstract
Bio-based vitrimers represent a promising class of thermosetting polymer materials, pairing the recyclability of dynamic covalent networks with the renewability of non-fossil fuel feedstocks. Vanillin, a low-cost lignin derivative, enables facile construction of polyimine networks marked by rapid exchange and sensitivity to acid-catalyzed hydrolysis. Furthermore, the aromatic structure makes it a promising candidate for the design of highly aromatic networks capable of high-performance thermal and dimensional stability. Such properties are paramount in polymeric thermal protection systems. Here, we report on the fabrication of polyimine networks with particularly high aromatic content from a novel trifunctional vanillin monomer prepared from the nucleophilic aromatic substitution of perfluoropyridine (PFP) on a multi-gram scale (>20 g) in high yield (86%). The trifunctional aromatic scaffold was then crosslinked with various diamines to demonstrate tunable viscoelastic behavior and thermal properties, with glass transition temperatures (Tg) ranging from 9 to 147 °C, degradation temperatures (5% mass loss) up to approximately 370 °C, and excellent char yields up to 68% at 650 °C under nitrogen. Moreover, the vitrimers displayed mechanical reprocessability over five destruction/healing cycles and rapid chemical recyclability following acidic hydrolysis at mild temperatures. Our findings indicate that vitrimers possessing tunable properties and high-performance thermomechanical behavior can be easily constructed from vanillin and electrophilic aromatic scaffolds for applications in heat-shielding materials and ablative coatings.
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Affiliation(s)
- Kevin A Stewart
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - Jacob J Lessard
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - Alexander J Cantor
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - John F Rynk
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - Laura S Bailey
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - Brent S Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
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3
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Bui TT, Nguyen TH, Tran HL, Tran CD, Le DT, Dao DN, Nguyen TPL, Nguyen LT, Nguyen LTT, Nguyen TQ, Cu ST, Hoang MH, Yokozawa T, Nguyen HT. Synthesis of rod–coil conjugated diblock copolymers, poly(3-hexylthiophene)-block-poly(2-(4,6-dichlorotriazin-2-yl]oxy)ethyl methacrylate) and click chemistry. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02793-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
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4
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Biswas S, Das A. A Versatile Step-Growth Polymerization Route to Functional Polyesters from an Activated Diester Monomer. Chemistry 2023; 29:e202203849. [PMID: 36511092 DOI: 10.1002/chem.202203849] [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: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 12/14/2022]
Abstract
This work describes a versatile and efficient condensation polymerization route to aliphatic polyesters by organo-catalyzed (4-dimethylaminopyridine) transesterification reactions between an activated pentafluorophenyl-diester of adipic acid and structurally different diols. By introducing "monofunctional impurity" or "stoichiometric imbalance," this methodology can afford well-defined end-functionalized polyesters with predictable molecular weights and narrow dispersity under mild conditions without any necessity for the removal of the byproducts to accelerate the polymerization reaction, which remains a major challenge in conventional polyester synthesis with non-activated diesters. Wide substrate scope with structurally different monomers and the synthesis of block copolymers by chain extension following either ring-opening polymerization or controlled radical polymerization have been successfully demonstrated. Some of the polyesters synthesized by this newly introduced approach show high thermal stability, crystallinity, and enzymatic degradation in aqueous environments.
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Affiliation(s)
- Subhendu Biswas
- School of Applied and Interdisciplinary Sciences Indian Association for the Cultivation of Science (IACS), 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Anindita Das
- School of Applied and Interdisciplinary Sciences Indian Association for the Cultivation of Science (IACS), 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
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5
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Sun J, Hong YL, Wang C, Tan ZW, Liu CM. Main-chain/Side-chain type Phosphine Oxide-Containing Reactive Polymers Derived from same Monomer: Controllable RAFT Polymerisation and ring-opening Polycondensation. Polym Chem 2022. [DOI: 10.1039/d2py00006g] [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
This paper reports the synthesis and selective polymerisations of an epoxy-rich phosphine oxide-containing styrenic monomer, namely 4-vinylbenzyl-bis((oxiran-2-ylmethoxy)methyl) phosphine oxide (VBzBOPO). The styryl and epoxy functionalities could be polymerized independently through...
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6
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Lee HW, Lee NJ, Kim JG. Sequential Post-Polymerization Modification of Aldehyde Polymers to Ketone and Oxime Polymers. Macromol Rapid Commun 2021; 42:e2100478. [PMID: 34519386 DOI: 10.1002/marc.202100478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/07/2021] [Indexed: 11/06/2022]
Abstract
A new sequential post-polymerization modification route has been developed for the synthesis of multifunctional polymers from a simple aldehyde polymer. In the first modification step, a template polymer derived from the radical polymerization of 4-vinyl benzaldehyde undergoes Rh-catalyzed hydroacylation with alkenes to furnish a group of ketone polymers. In the second modification step, Schiff base formation with alkoxy ammonium salts introduces a second group-an oxime functionality. Both the steps are highly efficient, introducing evenly distributed dual functionalities at the same position.
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Affiliation(s)
- Hyo Won Lee
- Department of Chemistry and Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, 54986, Republic of Korea
| | - Nam Joo Lee
- Department of Chemistry and Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, 54986, Republic of Korea
| | - Jeung Gon Kim
- Department of Chemistry and Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, 54986, Republic of Korea
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7
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Sharma A, Sheyi R, de la Torre BG, El-Faham A, Albericio F. s-Triazine: A Privileged Structure for Drug Discovery and Bioconjugation. Molecules 2021; 26:864. [PMID: 33562072 PMCID: PMC7914932 DOI: 10.3390/molecules26040864] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 11/28/2022] Open
Abstract
This review provides an overview of the broad applicability of s-triazine. Our many years working with this intriguing moiety allow us to discuss its wide activity spectrum (inhibition against MAO-A and -B, anticancer/antiproliferative and antimicrobial activity, antibacterial activity against MDR clinical isolates, antileishmanial agent, and use as drug nano delivery system). Most of the compounds addressed in our studies and those performed by other groups contain only N-substitution. Exploiting the concept of orthogonal chemoselectivity, first described by our group, we have successfully incorporated different nucleophiles in different orders into s-triazine core for application in peptides/proteins at a temperature compatible with biological systems.
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Affiliation(s)
- Anamika Sharma
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa; (A.S.); (R.S.); (B.G.d.l.T.)
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Rotimi Sheyi
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa; (A.S.); (R.S.); (B.G.d.l.T.)
| | - Beatriz G. de la Torre
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa; (A.S.); (R.S.); (B.G.d.l.T.)
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Ayman El-Faham
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, Alexandria 12321, Egypt
| | - Fernando Albericio
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa; (A.S.); (R.S.); (B.G.d.l.T.)
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain
- CIBER-BBN (Networking Centre on Bioengineering, Biomaterials and Nanomedicine) and Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
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8
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Hill SA, Steinfort R, Hartmann L. Progress, challenges and future directions of heterocycles as building blocks in iterative methodologies towards sequence-defined oligomers and polymers. Polym Chem 2021. [DOI: 10.1039/d1py00425e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Heterocyclic building blocks for iterative methodologies leading to sequence-defined oligomers and polymers are reviewed. Solid- as well as solution-phase methods, challenges surrounding these systems and potential future directions are presented.
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Affiliation(s)
- Stephen A. Hill
- Institute of Organic and Macromolecular Chemistry
- Heinrich Heine University Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Robert Steinfort
- Institute of Organic and Macromolecular Chemistry
- Heinrich Heine University Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Laura Hartmann
- Institute of Organic and Macromolecular Chemistry
- Heinrich Heine University Düsseldorf
- 40225 Düsseldorf
- Germany
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9
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Jimaja S, Xie Y, Foster JC, Taton D, Dove AP, O'Reilly RK. Functional nanostructures by NiCCo-PISA of helical poly(aryl isocyanide) copolymers. Polym Chem 2021. [DOI: 10.1039/d0py00791a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Nickel-catalysed coordination polymerisation-induced self-assembly (NiCCo-PISA) as a straightforward and versatile methodology to achieve functional helix-containing polymeric nano-objects.
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Affiliation(s)
- Sètuhn Jimaja
- Department of Chemistry
- University of Warwick
- Coventry CV4 7AL
- UK
- School of Chemistry
| | - Yujie Xie
- Department of Chemistry
- University of Warwick
- Coventry CV4 7AL
- UK
- School of Chemistry
| | | | - Daniel Taton
- Laboratoire de Chimie des Polymères Organiques
- Université de Bordeaux/CNRS École Nationale Supérieure de Chimie
- de Biologie & de Physique
- 33607 Cedex Pessac
- France
| | - Andrew P. Dove
- School of Chemistry
- University of Birmingham
- Edgbaston B15 2TT
- UK
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10
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Eom T, Khan A. Polyselenonium salts: synthesis through sequential selenium-epoxy 'click' chemistry and Se-alkylation. Chem Commun (Camb) 2020; 56:14271-14274. [PMID: 33124621 DOI: 10.1039/d0cc06653b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
With the help of amphiphilic homopolymers, this work explores three new avenues in polymer chemistry: (i) the 'click' nature of the selenium-epoxy reaction, (ii) alkylation of the seleno-ethers as a means to prepare cationic polyelectrolytes, and (iii) the antibacterial activity of polyselenonium salts.
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Affiliation(s)
- Taejun Eom
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-Ro, Seongbuk-Gu, Seoul 02841, Korea.
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11
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De Bruycker K, Welle A, Hirth S, Blanksby SJ, Barner-Kowollik C. Mass spectrometry as a tool to advance polymer science. Nat Rev Chem 2020; 4:257-268. [PMID: 37127980 DOI: 10.1038/s41570-020-0168-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2020] [Indexed: 12/12/2022]
Abstract
In contrast to natural polymers, which have existed for billions of years, the first well-understood synthetic polymers date back to just over one century ago. Nevertheless, this relatively short period has seen vast progress in synthetic polymer chemistry, which can now afford diverse macromolecules with varying structural complexities. To keep pace with this synthetic progress, there have been commensurate developments in analytical chemistry, where mass spectrometry has emerged as the pre-eminent technique for polymer analysis. This Perspective describes present challenges associated with the mass-spectrometric analysis of synthetic polymers, in particular the desorption, ionization and structural interrogation of high-molar-mass macromolecules, as well as strategies to lower spectral complexity. We critically evaluate recent advances in technology in the context of these challenges and suggest how to push the field beyond its current limitations. In this context, the increasingly important role of high-resolution mass spectrometry is emphasized because of its unrivalled ability to describe unique species within polymer ensembles, rather than to report the average properties of the ensemble.
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12
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Ren J, Liu H, Zhang X, Hu Y, Zhou G, Masuda T. Amide transformation as an efficient postpolymerization modification approach for the synthesis of functional polyacetylenes. Polym Chem 2020. [DOI: 10.1039/d0py00398k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Modification of a precursor polyacetylene with various amines and alcohols through amide transformation gives access to a series of functional polymers showing nonlinear optical, luminescence, enhanced surface energy, and redox active properties.
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Affiliation(s)
- Juntao Ren
- Key Laboratory of Synthetic Rubber
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Heng Liu
- Key Laboratory of Synthetic Rubber
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Xuequan Zhang
- Key Laboratory of Synthetic Rubber
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Yanming Hu
- Division of Energy Materials
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Guangyuan Zhou
- Division of Energy Materials
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Toshio Masuda
- College of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
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13
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Ntoukam DHS, Mutlu H, Theato P. Post-polymerization modification of Poly(vinylcyclopropanes): A potential route to periodic copolymers. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109319] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Jovic K, Nitsche T, Lang C, Blinco JP, De Bruycker K, Barner-Kowollik C. Hyphenation of size-exclusion chromatography to mass spectrometry for precision polymer analysis – a tutorial review. Polym Chem 2019. [DOI: 10.1039/c9py00370c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Herein we demonstrate how SEC-ESI-MS can be used to analyze complex polymers, a significant challenge in contemporary polymer chemistry.
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Affiliation(s)
- Kristina Jovic
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Brisbane
- Australia
| | - Tobias Nitsche
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Brisbane
- Australia
| | - Christiane Lang
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Brisbane
- Australia
| | - James P. Blinco
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Brisbane
- Australia
| | - Kevin De Bruycker
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Brisbane
- Australia
| | - Christopher Barner-Kowollik
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Brisbane
- Australia
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15
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Kubo T, Swartz JL, Scheutz GM, Sumerlin BS. Synthesis of Multifunctional Homopolymers through Using Thiazolidine Chemistry and Post-Polymerization Modification. Macromol Rapid Commun 2018; 40:e1800590. [PMID: 30368966 DOI: 10.1002/marc.201800590] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 09/10/2018] [Indexed: 01/07/2023]
Abstract
Multifunctional homopolymers, defined here as polymers that contain multiple reactive functional groups per repeat unit, are versatile scaffolds for preparing complex macromolecules via post-polymerization modification. However, there are limited methods for preparing multifunctional homopolymers that contain more than one nucleophilic site per repeat unit. Herein, a strategy to synthesize a multifunctional homopolymer using thiazolidine chemistry is demonstrated. Controlled radical polymerization of a thiazolidine-containing acrylamido monomer allows for the synthesis of a polymer with pendent latent nucleophiles. Ring-opening of the thiazolidine affords a homopolymer with two side-chain reactive sites, an amine and a thiol. One-pot functionalization via disulfide formation and acyl substitution is performed to introduce two distinct groups in each repeat unit.
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Affiliation(s)
- Tomohiro Kubo
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Jeremy L Swartz
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Georg M Scheutz
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Brent S Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
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16
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Smith IR, Charlier AHR, Pritzlaff AM, Shishlov A, Barnes B, Bentz KC, Easterling CP, Sumerlin BS, Fanucci GE, Savin DA. Probing Membrane Hydration at the Interface of Self-Assembled Peptide Amphiphiles Using Electron Paramagnetic Resonance. ACS Macro Lett 2018; 7:1261-1266. [PMID: 35651263 DOI: 10.1021/acsmacrolett.8b00728] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The relative hydrophilicity at the interface of a nanoparticle was measured utilizing electron paramagnetic resonance (EPR) spectroscopy. The supramolecular structure was assembled from spin-labeled peptide amphiphiles (PA) derived from N-carboxy anhydrides (NCA). Cyanuric chloride, or 2,4,6-trichloro-1,3,5-triazine (TCT), was used as a modular platform to synthesize the spin-labeled, lipid-mimetic macroinitiator used for the ring-opening polymerization of γ-benzyl-l-glutamic acid NCA to produce polyglutamate-b-dodecanethiol2. Through static and dynamic light scattering, as well as transmission electron microscopy, PAs with DP of 50 and 17 were shown to assemble into stable nanoparticles with an average hydrodynamic radius of 117 and 84 nm, respectively. Continuous wave EPR spectroscopy revealed that the mobility parameter (h-1/h0) and 2Aiso of the nitroxide radical increased with increasing pH, in concert with the deprotonation of the PE side chains and associated helix-coil transition. These results are consistent with an increase in the relative hydration and polarity at the nanoparticle interface, which would be dependent on the secondary structure of the polypeptide. This research suggests that a pH stimulus could be used to facilitate water diffusion through the membrane.
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Affiliation(s)
- Ian R. Smith
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Alban H. R. Charlier
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Amanda M. Pritzlaff
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Alexander Shishlov
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Brooke Barnes
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Kyle C. Bentz
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Charles P. Easterling
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Gail E. Fanucci
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Daniel A. Savin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
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17
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Zhu Z, Jeong G, Kim SJ, Gadwal I, Choe Y, Bang J, Oh MK, Khan A, Rao J. Balancing antimicrobial performance with hemocompatibility in amphiphilic homopolymers. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29213] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zhiyuan Zhu
- Department of Chemical and Biological Engineering; Korea University; Seoul 02841 South Korea
| | - Gookyeong Jeong
- Department of Chemical and Biological Engineering; Korea University; Seoul 02841 South Korea
| | - Seung-Jin Kim
- Department of Chemical and Biological Engineering; Korea University; Seoul 02841 South Korea
| | - Ikhlas Gadwal
- Polymers and Advanced Materials Laboratory, Polymer Science and Engineering Division; CSIR- National Chemical Laboratory; Pune 411008 India
| | - Youngson Choe
- Department of Chemical Engineering; Pusan National University; Pusan 46241 South Korea
| | - Joona Bang
- Department of Chemical and Biological Engineering; Korea University; Seoul 02841 South Korea
| | - Min-Kyu Oh
- Department of Chemical and Biological Engineering; Korea University; Seoul 02841 South Korea
| | - Anzar Khan
- Department of Chemical and Biological Engineering; Korea University; Seoul 02841 South Korea
| | - Jingyi Rao
- Department of Chemical and Biological Engineering; Korea University; Seoul 02841 South Korea
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18
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Sims MB, Lessard JJ, Bai L, Sumerlin BS. Functional Diversification of Polymethacrylates by Dynamic β-Ketoester Modification. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01343] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Michael B. Sims
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
| | - Jacob J. Lessard
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
| | - Lian Bai
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611-7200, United States
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19
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Hill MR, Kubo T, Goodrich SL, Figg CA, Sumerlin BS. Alternating Radical Ring-Opening Polymerization of Cyclic Ketene Acetals: Access to Tunable and Functional Polyester Copolymers. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00889] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Megan R. Hill
- George & Josephine Butler Polymer Research Laboratory, Department of Chemistry, Center for Macromolecular Science & Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Tomohiro Kubo
- George & Josephine Butler Polymer Research Laboratory, Department of Chemistry, Center for Macromolecular Science & Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Sofia L. Goodrich
- George & Josephine Butler Polymer Research Laboratory, Department of Chemistry, Center for Macromolecular Science & Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - C. Adrian Figg
- George & Josephine Butler Polymer Research Laboratory, Department of Chemistry, Center for Macromolecular Science & Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Department of Chemistry, Center for Macromolecular Science & Engineering, University of Florida, Gainesville, Florida 32611, United States
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20
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Kubo T, Easterling CP, Olson RA, Sumerlin BS. Synthesis of multifunctional homopolymers via sequential post-polymerization reactions. Polym Chem 2018. [DOI: 10.1039/c8py01055b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This mini-review highlights recent developments in the synthesis of multifunctional homopolymers, i.e., homopolymers with multiple pendent functionalities.
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Affiliation(s)
- Tomohiro Kubo
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Charles P. Easterling
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Rebecca A. Olson
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
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21
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Um IH, Kim MY, Dust JM. Medium effect (water versus MeCN) on reactivity and reaction pathways for the SNAr reaction of 1-aryloxy-2,4-dinitrobenzenes with cyclic secondary amines. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0454] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A kinetic study on SNAr reactions of 1-aryloxy-2,4-dinitrobenzenes (1a–1h) with a series of cyclic secondary amines in 80 mol% water – 20 mol% DMSO at 25.0 ± 0.1 °C is reported. The plots of kobsd versus amine concentration curve upward except for the reactions of substrates possessing a strong electron-withdrawing group in the leaving aryloxide with strongly basic piperidine. The curved plots indicate that the reactions proceed through both uncatalytic and catalytic routes. Linear Brønsted-type plots have been obtained for the uncatalyzed and catalyzed reactions of 1-(4-nitrophenoxy)-2,4-dinitrobenzene (1a) with βnuc = 0.84 and 0.78, respectively. The Yukawa–Tsuno plot for the uncatalyzed reactions of 1a–1h with piperidine results in an excellent linear correlation with ρ = 1.66 and r = 0.31. In contrast, rate constants for catalyzed reactions are independent of the electronic nature of the substituent in the leaving group. The current SNAr reactions have been proposed to proceed via a zwitterionic intermediate (MC±) that partitions to products through uncatalytic and catalytic routes. The catalyzed reaction from MC± has been concluded to proceed through a concerted mechanism with a six-membered cyclic transition state (TScycl) rather than via a stepwise pathway with a discrete anionic intermediate (MC−), the traditionally accepted mechanism. Medium effects on the reactivity and reaction mechanism are discussed. Particularly, hydrogen bonding of the amines to water precludes formation of kinetically significant dimers found in some aprotic solvents; no explicit role for water in the catalytic transition state is required or proposed. The specific stabilization of the leaving aryloxides substituted with strong electron-withdrawing groups accounts for the lack of the catalytic pathway in these systems (1a–1c) with piperidine nucleophile.
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Affiliation(s)
- Ik-Hwan Um
- Department of Chemistry, Ewha Womans University, Seoul 120-750, Korea
| | - Min-Young Kim
- Department of Chemistry, Ewha Womans University, Seoul 120-750, Korea
| | - Julian M. Dust
- Departments of Chemistry and Environmental Science, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada
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22
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Easterling CP, Kubo T, Orr ZM, Fanucci GE, Sumerlin BS. Synthetic upcycling of polyacrylates through organocatalyzed post-polymerization modification. Chem Sci 2017; 8:7705-7709. [PMID: 29568433 PMCID: PMC5851076 DOI: 10.1039/c7sc02574b] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/22/2017] [Indexed: 12/18/2022] Open
Abstract
The direct transformation of commercially available commodity polyacrylates into value-added materials was achieved. We demonstrate how 1,5,7-triazabicyclo[4.4.0]dec-5-ene, serving as a nucleophilic catalyst, can be used to catalyze acyl substitution reactions of acrylic polymers in the presence of alcohol and amine nucleophiles. Furthermore, we found that organocatalytic transesterification exhibits high selectivity towards sterically unhindered esters, thus providing a new route towards site-selective acyl substitution of macromolecular materials. Combining this methodology with reversible-deactivation radical polymerization (RDRP) techniques such as reversible addition-fragmentation chain-transfer (RAFT) polymerization allowed for the precise functionalization of sterically-differentiated acrylic copolymers and polymeric chain ends. We envision this approach to expedite functional polymer synthesis and provide access to functional macromolecules prepared from inexpensive, hydrolytically-stable polymeric precursors.
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Affiliation(s)
- Charles P Easterling
- George & Josephine Butler Polymer Research Laboratory , Center for Macromolecular Science & Engineering , Department of Chemistry , University of Florida , PO Box 117200 , Gainesville , FL 32611-7200 , USA . ;
| | - Tomohiro Kubo
- George & Josephine Butler Polymer Research Laboratory , Center for Macromolecular Science & Engineering , Department of Chemistry , University of Florida , PO Box 117200 , Gainesville , FL 32611-7200 , USA . ;
| | - Zachary M Orr
- George & Josephine Butler Polymer Research Laboratory , Center for Macromolecular Science & Engineering , Department of Chemistry , University of Florida , PO Box 117200 , Gainesville , FL 32611-7200 , USA . ;
| | - Gail E Fanucci
- George & Josephine Butler Polymer Research Laboratory , Center for Macromolecular Science & Engineering , Department of Chemistry , University of Florida , PO Box 117200 , Gainesville , FL 32611-7200 , USA . ;
| | - Brent S Sumerlin
- George & Josephine Butler Polymer Research Laboratory , Center for Macromolecular Science & Engineering , Department of Chemistry , University of Florida , PO Box 117200 , Gainesville , FL 32611-7200 , USA . ;
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23
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Xu B, Feng C, Huang X. A versatile platform for precise synthesis of asymmetric molecular brush in one shot. Nat Commun 2017; 8:333. [PMID: 28839135 PMCID: PMC5571111 DOI: 10.1038/s41467-017-00365-2] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 06/24/2017] [Indexed: 11/15/2022] Open
Abstract
Asymmetric molecular brushes emerge as a unique class of nanostructured polymers, while their versatile synthesis keeps a challenge for chemists. Here we show the synthesis of well-defined asymmetric molecular double-brushes comprising two different side chains linked to the same repeat unit along the backbone by one-pot concurrent atom transfer radical polymerization (ATRP) and Cu-catalyzed azide/alkyne cycloaddition (CuAAC) reaction. The double-brushes are based on a poly(Br-acrylate-alkyne) homopolymer possessing an alkynyl for CuAAC reaction and a 2-bromopropionate initiating group for ATRP in each repeat unit. The versatility of this one-shot approach is demonstrated by CuAAC reaction of alkynyl/poly(ethylene oxide)-N3 and ATRP of various monomers. We also show the quantitative conversion of pentafluorophenyl ester groups to amide groups in side chains, allowing for the further fabrication of diverse building blocks. This work provides a versatile platform for facile synthesis of Janus-type double-brushes with structural and functional control, in a minimum number of reactions.Producing well-defined polymer compositions and structures facilitates their use in many different applications. Here the authors show the synthesis of well-defined asymmetric double-brushes by a one-pot concurrent atom transfer radical polymerization and Cu-catalyzed Click reaction.
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Affiliation(s)
- Binbin Xu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China.
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24
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Blasco E, Sims MB, Goldmann AS, Sumerlin BS, Barner-Kowollik C. 50th Anniversary Perspective: Polymer Functionalization. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00465] [Citation(s) in RCA: 248] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Eva Blasco
- Macromolecular Architectures, Institut für Technische Chemie
und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr.
18, 76128 Karlsruhe, Germany
- Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Michael B. Sims
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Anja S. Goldmann
- School of Chemistry,
Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George St., Brisbane, QLD 4000, Australia
- Macromolecular Architectures, Institut für Technische Chemie
und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr.
18, 76128 Karlsruhe, Germany
- Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Christopher Barner-Kowollik
- School of Chemistry,
Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George St., Brisbane, QLD 4000, Australia
- Macromolecular Architectures, Institut für Technische Chemie
und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr.
18, 76128 Karlsruhe, Germany
- Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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25
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Lin L, Huang J, Ma Z, Liang H, Lu J. Preparation and orthogonal postmodification of dual-clickable polymer precursors bearing both aldehyde and alkyne groups. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28662] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Lvhuan Lin
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Resin-Based Composites, School of Chemistry, Sun Yat-sen University; Guangzhou 510275 China
| | - Jianbing Huang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Resin-Based Composites, School of Chemistry, Sun Yat-sen University; Guangzhou 510275 China
| | - Zhi'an Ma
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Resin-Based Composites, School of Chemistry, Sun Yat-sen University; Guangzhou 510275 China
| | - Hui Liang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Resin-Based Composites, School of Chemistry, Sun Yat-sen University; Guangzhou 510275 China
| | - Jiang Lu
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Resin-Based Composites, School of Chemistry, Sun Yat-sen University; Guangzhou 510275 China
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26
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Wang X, Figg CA, Lv X, Yang Y, Sumerlin BS, An Z. Star Architecture Promoting Morphological Transitions during Polymerization-Induced Self-Assembly. ACS Macro Lett 2017; 6:337-342. [PMID: 35610849 DOI: 10.1021/acsmacrolett.7b00099] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Polymerization-induced self-assembly (PISA) via reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization is an effective method to produce block copolymer nano-objects of various morphologies at high solids. However, current PISA formulations have been limited to linear block copolymers. We report the synthesis of AB2 star block copolymers via RAFT aqueous dispersion polymerization of diacetone acrylamide using a poly(ethylene glycol) methyl ether bearing two chain transfer agents as the difunctional macromolecular chain transfer agent (macro-CTA), which was efficiently synthesized using 2,4,6-trichloro-1,3,5-triazine and activated esters to afford a high end functionality (97%). The star polymer architecture can significantly promote morphological transitions to obtain higher-order morphologies at both lower solids and lower degrees of polymerization of the core-forming block in comparison with its linear counterpart. This work demonstrates that polymer architecture is another important parameter that should be considered when conducting PISA synthesis to obtain complex morphologies.
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Affiliation(s)
- Xiao Wang
- Institute
of Nanochemistry and Nanobiology, College of Environmental and Chemical
Engineering, Shanghai University, Shanghai 200444, China
| | - C. Adrian Figg
- George
and Josephine Butler Polymer Research Laboratory, Center for Macromolecular
Science and Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Xiaoqing Lv
- Institute
of Nanochemistry and Nanobiology, College of Environmental and Chemical
Engineering, Shanghai University, Shanghai 200444, China
| | - Yongqi Yang
- Institute
of Nanochemistry and Nanobiology, College of Environmental and Chemical
Engineering, Shanghai University, Shanghai 200444, China
| | - Brent S. Sumerlin
- George
and Josephine Butler Polymer Research Laboratory, Center for Macromolecular
Science and Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Zesheng An
- Institute
of Nanochemistry and Nanobiology, College of Environmental and Chemical
Engineering, Shanghai University, Shanghai 200444, China
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27
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Liu Q, Lyu Z, Yu Y, Zhao ZA, Hu S, Yuan L, Chen G, Chen H. Synthetic Glycopolymers for Highly Efficient Differentiation of Embryonic Stem Cells into Neurons: Lipo- or Not? ACS APPLIED MATERIALS & INTERFACES 2017; 9:11518-11527. [PMID: 28287262 DOI: 10.1021/acsami.7b01397] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To realize the potential application of embryonic stem cells (ESCs) for the treatment of neurodegenerative diseases, it is a prerequisite to develop an effective strategy for the neural differentiation of ESCs so as to obtain adequate amount of neurons. Considering the efficacy of glycosaminoglycans (GAG) and their disadvantages (e.g., structure heterogeneity and impurity), GAG-mimicking glycopolymers (designed polymers containing functional units similar to natural GAG) with or without phospholipid groups were synthesized in the present work and their ability to promote neural differentiation of mouse ESCs (mESCs) was investigated. It was found that the lipid-anchored GAG-mimicking glycopolymers (lipo-pSGF) retained on the membrane of mESCs rather than being internalized by cells after 1 h of incubation. Besides, lipo-pSGF showed better activity in promoting neural differentiation. The expression of the neural-specific maker β3-tubulin in lipo-pSGF-treated cells was ∼3.8- and ∼1.9-fold higher compared to natural heparin- and pSGF-treated cells at day 14. The likely mechanism involved in lipo-pSGF-mediated neural differentiation was further investigated by analyzing its effect on fibroblast growth factor 2 (FGF2)-mediated extracellular signal-regulated kinases 1 and 2 (ERK1/2) signaling pathway which is important for neural differentiation of ESCs. Lipo-pSGF was found to efficiently bind FGF2 and enhance the phosphorylation of ERK1/2, thus promoting neural differentiation. These findings demonstrated that engineering of cell surface glycan using our synthetic lipo-glycopolymer is a highly efficient approach for neural differentiation of ESCs and this strategy can be applied for the regulation of other cellular activities mediated by cell membrane receptors.
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Affiliation(s)
- Qi Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 199 Ren'ai Road, Suzhou 215123, P.R. China
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University , Suzhou 215006, P.R. China
| | - Zhonglin Lyu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 199 Ren'ai Road, Suzhou 215123, P.R. China
| | - You Yu
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University , Suzhou 215000, P.R. China
| | - Zhen-Ao Zhao
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University , Suzhou 215000, P.R. China
| | - Shijun Hu
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University , Suzhou 215000, P.R. China
| | - Lin Yuan
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 199 Ren'ai Road, Suzhou 215123, P.R. China
| | - Gaojian Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 199 Ren'ai Road, Suzhou 215123, P.R. China
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University , Suzhou 215006, P.R. China
| | - Hong Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 199 Ren'ai Road, Suzhou 215123, P.R. China
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28
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Tesch M, Kudruk S, Letzel M, Studer A. Orthogonal Click Postfunctionalization of Alternating Copolymers Prepared by Nitroxide-Mediated Polymerization. Chemistry 2017; 23:5915-5919. [DOI: 10.1002/chem.201605639] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Matthias Tesch
- Organic Chemistry Institute; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
| | - Sergej Kudruk
- Organic Chemistry Institute; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
| | - Matthias Letzel
- Organic Chemistry Institute; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
| | - Armido Studer
- Organic Chemistry Institute; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
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29
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Carmean RN, Figg CA, Scheutz GM, Kubo T, Sumerlin BS. Catalyst-Free Photoinduced End-Group Removal of Thiocarbonylthio Functionality. ACS Macro Lett 2017; 6:185-189. [PMID: 35632891 DOI: 10.1021/acsmacrolett.7b00038] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An initiator- and catalyst-free method for polymer end-group modification has been designed. Under long-wave ultraviolet irradiation, polymers with thiocarbonylthio end groups undergo photolytic cleavage to reveal an active macroradical capable of irreversible termination with a suitable hydrogen source. This straightforward method was successfully demonstrated by the removal of a range of end groups that commonly result from reversible addition-fragmentation chain transfer or photoiniferter polymerizations, including trithiocarbonate, dithiobenzoate, xanthate, and dithiocarbamate mediating agents. This strategy proved efficient for polymers derived from acrylamido, acrylic, methacrylic, styrenic, and vinylpyrrolidone monomers.
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Affiliation(s)
- R. Nicholas Carmean
- George and Josephine Butler
Polymer Research Laboratory, Center for Macromolecular Science and
Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - C. Adrian Figg
- George and Josephine Butler
Polymer Research Laboratory, Center for Macromolecular Science and
Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Georg M. Scheutz
- George and Josephine Butler
Polymer Research Laboratory, Center for Macromolecular Science and
Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Tomohiro Kubo
- George and Josephine Butler
Polymer Research Laboratory, Center for Macromolecular Science and
Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Brent S. Sumerlin
- George and Josephine Butler
Polymer Research Laboratory, Center for Macromolecular Science and
Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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30
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Adrian Figg C, Bartley AN, Kubo T, Tucker BS, Castellano RK, Sumerlin BS. Mild and efficient synthesis of ω,ω-heterodifunctionalized polymers and polymer bioconjugates. Polym Chem 2017. [DOI: 10.1039/c7py00225d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Semi-telechelic ω,ω-heterodifunctional polymers and polymer bioconjugates are synthesized under mild conditions using benzotrifuranone.
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Affiliation(s)
- C. Adrian Figg
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Ashton N. Bartley
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Tomohiro Kubo
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Bryan S. Tucker
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Ronald K. Castellano
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
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31
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Meng F, Li Y, Zhang W, Li S, Quan Y, Cheng Y. Circularly polarized luminescence based chirality transfer of the chiral BINOL moiety via rigid π-conjugation chain backbone structures. Polym Chem 2017. [DOI: 10.1039/c6py02218a] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Three kinds of chiral BINOL-based polymers could be synthesized by polymerization in a Pd-catalyzed cross-coupling reaction.
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Affiliation(s)
- Fandian Meng
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- Nanjing University
- Nanjing
- China
| | - Yunzhi Li
- Computational Chemistry School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Wenjie Zhang
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- Nanjing University
- Nanjing
- China
| | - Shuhua Li
- Computational Chemistry School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yiwu Quan
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- Nanjing University
- Nanjing
- China
| | - Yixiang Cheng
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- Nanjing University
- Nanjing
- China
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32
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Kubo T, Bentz KC, Powell KC, Figg CA, Swartz JL, Tansky M, Chauhan A, Savin DA, Sumerlin BS. Modular and rapid access to amphiphilic homopolymers via successive chemoselective post-polymerization modification. Polym Chem 2017. [DOI: 10.1039/c7py01585b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A modular and simplified post-polymerization modification strategy is developed for the synthesis of amphiphilic homopolymers.
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Affiliation(s)
- Tomohiro Kubo
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Kyle C. Bentz
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Kristin C. Powell
- Department of Chemical Engineering
- University of Florida
- Gainesville
- USA
| | - C. Adrian Figg
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Jeremy L. Swartz
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Maxym Tansky
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Anuj Chauhan
- Department of Chemical Engineering
- University of Florida
- Gainesville
- USA
| | - Daniel A. Savin
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
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33
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Baker MB, Ferreira RB, Tasseroul J, Lampkins AJ, Al Abbas A, Abboud KA, Castellano RK. Selective and Sequential Aminolysis of Benzotrifuranone: Synergism of Electronic Effects and Ring Strain Gradient. J Org Chem 2016; 81:9279-9288. [DOI: 10.1021/acs.joc.6b01867] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Matthew B. Baker
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Renan B. Ferreira
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Jonathan Tasseroul
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Andrew J. Lampkins
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Alexandre Al Abbas
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Khalil A. Abboud
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Ronald K. Castellano
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
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34
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Liu Q, Xue H, Gao J, Cao L, Chen G, Chen H. Synthesis of lipo-glycopolymers for cell surface engineering. Polym Chem 2016. [DOI: 10.1039/c6py01788f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel synthetic lipo-glycopolymer was inserted into cell membranes for cell surface engineering.
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Affiliation(s)
- Qi Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Hui Xue
- Center for Soft Condensed Matter Physics and Interdisciplinary Research
- Soochow University
- Suzhou 215006
- P. R. China
| | - Jinbo Gao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Limin Cao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Gaojian Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Hong Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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