1
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Stickdorn J, Czysch C, Medina-Montano C, Stein L, Xu L, Scherger M, Schild H, Grabbe S, Nuhn L. Peptide-Decorated Degradable Polycarbonate Nanogels for Eliciting Antigen-Specific Immune Responses. Int J Mol Sci 2023; 24:15417. [PMID: 37895096 PMCID: PMC10607756 DOI: 10.3390/ijms242015417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/08/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
For successful therapeutic interventions in cancer immunotherapy, strong antigen-specific immune responses are required. To this end, immunostimulating cues must be combined with antigens to simultaneously arrive at antigen-presenting cells and initiate cellular immune responses. Recently, imidazoquinolines have shown their vast potential as small molecular Toll-like receptor 7/8 (TLR7/8) agonists for immunostimulation when delivered by nanocarriers. At the same time, peptide antigens are promising antigen candidates but require combination with immune-stimulating adjuvants to boost their immunogenicity and exploit their full potential. Consequently, we herein present biodegradable polycarbonate nanogels as versatile delivery system for adjuvants within the particles' core as well as for peptide antigens by surface decoration. For that purpose, orthogonally addressable multifunctional polycarbonate block copolymers were synthesized, enabling adjuvant conjugation through reactive ester chemistry and peptide decoration by strain-promoted alkyne-azide cycloaddition (SPAAC). In preparation for SPAAC, CD4+-specific peptide sequences of the model protein antigen ovalbumin were equipped with DBCO-moieties by site-selective modification at their N-terminal cysteine. With their azide groups exposed on their surface, the adjuvant-loaded nanogels were then efficiently decorated with DBCO-functional CD4+-peptides by SPAAC. In vitro evaluation of the adjuvant-loaded peptide-decorated gels then confirmed their strong immunostimulating properties as well as their high biocompatibility. Despite their covalent conjugation, the CD4+-peptide-decorated nanogels led to maturation of primary antigen-presenting cells and the downstream priming of CD4+-T cells. Subsequently, the peptide-decorated nanogels loaded with TLR7/8 agonist were successfully processed by antigen-presenting cells, enabling potent immune responses for future application in antigen-specific cancer immunotherapy.
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Affiliation(s)
| | | | - Carolina Medina-Montano
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
| | - Lara Stein
- Institute of Immunology, University Medical Center, Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
| | - Lujuan Xu
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Zhejiang Cancer Hospital, The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
| | | | - Hansjörg Schild
- Institute of Immunology, University Medical Center, Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
| | - Lutz Nuhn
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Chair of Macromolecular Chemistry, Institute of Functional Materials and Biofabrication, Department of Chemistry and Pharmacy, Julius-Maximilians-Universität Würzburg, 97074 Würzburg, Germany
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2
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Lai H, Jin C, Park J, Ikura R, Takashima Y, Ouchi M. A Transformable and Bulky Methacrylate Monomer That Enables the Synthesis of an MMA-nBA Alternating Copolymer: Sequence-Dependent Self-Healing Properties. Angew Chem Int Ed Engl 2023; 62:e202218597. [PMID: 36708216 DOI: 10.1002/anie.202218597] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/21/2023] [Accepted: 01/26/2023] [Indexed: 01/29/2023]
Abstract
In this study, we designed a methacrylate molecule with an alkyl-substituted trichloro salicylic acid pendant as a transformable bulky monomer to enable the synthesis of an alternating copolymer of methyl methacrylate (MMA) and n-butyl acrylate (nBA). The adamantyl-substituted methacrylate monomer (1-Ad) showed very low homopolymerization propensity in radical polymerizations, but afforded the alternating copolymer with nBA via copolymerization. The 1-Ad units in the resultant copolymer were quantitatively and selectively transformed into MMA via transesterification with methanol to yield the alternating copolymer of MMA and nBA. Its alternating sequence was clearly demonstrated by a structural analysis via 13 C NMR spectroscopy as well as the low reactivity ratios for the 1-Ad and nBA pair. Finally, we verified the superior self-healing ability of the alternating copolymer compared to that of the corresponding 1 : 1 statistical copolymer.
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Affiliation(s)
- Haiwang Lai
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Changming Jin
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Junsu Park
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Ryohei Ikura
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Institute for Advanced Co-Creation Studies, Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Makoto Ouchi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
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3
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Oberle KG, Whitman EL, Jolly CS, Webster KA, Marx BS, Howard CM, Hanger CA, Ramey EE, Zou Y, Lowe JC, Turlington M, Turlington CR. Metallopolymers in minutes via organocatalysis at room temperature. Polym Chem 2022. [DOI: 10.1039/d2py00747a] [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
Organocatalytic ring-opening polymerization of cyclic carbonate monomers derivatized with metallocenes is described for the rapid synthesis of high Mn metallopolymers.
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Affiliation(s)
- Kjersti G. Oberle
- Hope College Department of Chemistry and Biochemistry, Holland, MI 49422, USA
| | - Elizabeth L. Whitman
- Berry College Department of Chemistry and Biochemistry, Mount Berry, GA, 30149, USA
| | - Charles S. Jolly
- Berry College Department of Chemistry and Biochemistry, Mount Berry, GA, 30149, USA
| | | | - Benjamin S. Marx
- Berry College Department of Chemistry and Biochemistry, Mount Berry, GA, 30149, USA
| | | | - Clara A. Hanger
- Berry College Department of Chemistry and Biochemistry, Mount Berry, GA, 30149, USA
| | - Erin E. Ramey
- Hope College Department of Chemistry and Biochemistry, Holland, MI 49422, USA
| | - Yutong Zou
- Hope College Department of Chemistry and Biochemistry, Holland, MI 49422, USA
| | - Jared C. Lowe
- Hope College Department of Chemistry and Biochemistry, Holland, MI 49422, USA
| | - Mark Turlington
- Berry College Department of Chemistry and Biochemistry, Mount Berry, GA, 30149, USA
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4
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Tan EWP, Hedrick JL, Arrechea PL, Erdmann T, Kiyek V, Lottier S, Yang YY, Park NH. Overcoming Barriers in Polycarbonate Synthesis: A Streamlined Approach for the Synthesis of Cyclic Carbonate Monomers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02880] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eddy W. P. Tan
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - James L. Hedrick
- IBM Research-Almaden, 650 Harry Road, San Jose, California 95120, United States
| | - Pedro L. Arrechea
- IBM Research-Almaden, 650 Harry Road, San Jose, California 95120, United States
| | - Tim Erdmann
- IBM Research-Almaden, 650 Harry Road, San Jose, California 95120, United States
| | - Vivien Kiyek
- IBM Research-Almaden, 650 Harry Road, San Jose, California 95120, United States
| | - Simon Lottier
- IBM Research-Almaden, 650 Harry Road, San Jose, California 95120, United States
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Nathaniel H. Park
- IBM Research-Almaden, 650 Harry Road, San Jose, California 95120, United States
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5
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Dong J, Chen X, Ji F, Liu L, Su L, Mo M, Tang J, Zhou Y. Copper‐mediated simple and direct aerobic oxidative esterification of arylacetonitriles with alcohols/phenols. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jianyu Dong
- Department of Educational Science Hunan First Normal University Changsha China
- College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Xiuling Chen
- College of Chemistry and Chemical Engineering Hunan University Changsha China
- Non‐power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology Hubei University of Science and Technology Xianning China
| | - Fangyan Ji
- College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Lixin Liu
- College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Lebin Su
- College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Min Mo
- Department of Educational Science Hunan First Normal University Changsha China
| | - Jian‐Sheng Tang
- Department of Educational Science Hunan First Normal University Changsha China
| | - Yongbo Zhou
- College of Chemistry and Chemical Engineering Hunan University Changsha China
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6
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Bexis P, De Winter J, Arno MC, Coulembier O, Dove AP. Organocatalytic Synthesis of Alkyne-Functional Aliphatic Polycarbonates via Ring-Opening Polymerization of an Eight-Membered-N-Cyclic Carbonate. Macromol Rapid Commun 2020; 42:e2000378. [PMID: 32909337 DOI: 10.1002/marc.202000378] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/13/2020] [Indexed: 12/30/2022]
Abstract
The synthesis of well-defined propargyl-functional aliphatic polycarbonates is achieved via the organocatalytic ring-opening polymerization of prop-2-yn-1-yl 2-oxo-1,3,6-dioxazocane-6-carboxylate (P-8NC) using a wide variety of commercially available or readily made, shelf-stable organocatalysts. The resulting homopolymers show low dispersities and end-group fidelity, with the versatility of the system being demonstrated by the synthesis of telechelic copolymers and block copolymers with molar mass up to 40 kDa.
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Affiliation(s)
- Panagiotis Bexis
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory, Interdisciplinary Center for Mass Spectrometry (CISMa), University of Mons, Place du Parc 23, Mons, B-7000, Belgium
| | - Maria C Arno
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Olivier Coulembier
- Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc 23, Mons, B-7000, Belgium
| | - Andrew P Dove
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
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7
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Trujillo C, Litvajova M, Cronin SA, Craig R, Connon SJ. The Steglich Rearrangement of 2‐Oxindole Derivatives Promoted by Anion‐based Nucleophilic Catalysis. ChemCatChem 2019. [DOI: 10.1002/cctc.201900756] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Cristina Trujillo
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
| | - Mili Litvajova
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
| | - Sarah A. Cronin
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
| | - Ryan Craig
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
| | - Stephen J. Connon
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
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8
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Becker G, Wurm FR. Functional biodegradable polymers via ring-opening polymerization of monomers without protective groups. Chem Soc Rev 2018; 47:7739-7782. [PMID: 30221267 DOI: 10.1039/c8cs00531a] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Biodegradable polymers are of current interest and chemical functionality in such materials is often demanded in advanced biomedical applications. Functional groups often are not tolerated in the polymerization process of ring-opening polymerization (ROP) and therefore protective groups need to be applied. Advantageously, several orthogonally reactive functions are available, which do not demand protection during ROP. We give an insight into available, orthogonally reactive cyclic monomers and the corresponding functional synthetic and biodegradable polymers, obtained from ROP. Functionalities in the monomer are reviewed, which are tolerated by ROP without further protection and allow further post-modification of the corresponding chemically functional polymers after polymerization. Synthetic concepts to these monomers are summarized in detail, preferably using precursor molecules. Post-modification strategies for the reported functionalities are presented and selected applications highlighted.
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Affiliation(s)
- Greta Becker
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
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9
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Stabilization of poly(ethylene glycol)-poly(ε-caprolactone) star block copolymer micelles via aromatic groups for improved drug delivery properties. J Colloid Interface Sci 2018; 514:468-478. [DOI: 10.1016/j.jcis.2017.12.057] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/16/2017] [Accepted: 12/19/2017] [Indexed: 12/12/2022]
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10
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Craig R, Litvajova M, Cronin SA, Connon SJ. Enantioselective acyl-transfer catalysis by fluoride ions. Chem Commun (Camb) 2018; 54:10108-10111. [DOI: 10.1039/c8cc05692g] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The asymmetric nucleophilic catalysis by fluoride ions at a carbon-based electrophile has been demonstrated for the first time.
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Affiliation(s)
- Ryan Craig
- School of Chemistry Trinity Biomedical Sciences Institute, Trinity College Dublin
- Dublin 2
- Ireland
| | - Mili Litvajova
- School of Chemistry Trinity Biomedical Sciences Institute, Trinity College Dublin
- Dublin 2
- Ireland
| | - Sarah A. Cronin
- School of Chemistry Trinity Biomedical Sciences Institute, Trinity College Dublin
- Dublin 2
- Ireland
| | - Stephen J. Connon
- School of Chemistry Trinity Biomedical Sciences Institute, Trinity College Dublin
- Dublin 2
- Ireland
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11
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Yuen AY, Bossion A, Veloso A, Mecerreyes D, Hedrick JL, Dove AP, Sardon H. Efficient polymerization and post-modification of N-substituted eight-membered cyclic carbonates containing allyl groups. Polym Chem 2018. [DOI: 10.1039/c8py00231b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Aliphatic polycarbonates are promising materials in the biomedical field due to their low toxicity, biocompatibility, and biodegradability.
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Affiliation(s)
- Alexander Y. Yuen
- POLYMAT
- University of the Basque Country UPV/EHU
- Joxe Mari Korta Center
- 20018 Donostia-San Sebastian
- Spain
| | - Amaury Bossion
- POLYMAT
- University of the Basque Country UPV/EHU
- Joxe Mari Korta Center
- 20018 Donostia-San Sebastian
- Spain
| | - Antonio Veloso
- POLYMAT
- University of the Basque Country UPV/EHU
- Joxe Mari Korta Center
- 20018 Donostia-San Sebastian
- Spain
| | - David Mecerreyes
- POLYMAT
- University of the Basque Country UPV/EHU
- Joxe Mari Korta Center
- 20018 Donostia-San Sebastian
- Spain
| | | | | | - Haritz Sardon
- POLYMAT
- University of the Basque Country UPV/EHU
- Joxe Mari Korta Center
- 20018 Donostia-San Sebastian
- Spain
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12
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13
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García-Gallego S, Nyström AM, Malkoch M. Chemistry of multifunctional polymers based on bis-MPA and their cutting-edge applications. Prog Polym Sci 2015. [DOI: 10.1016/j.progpolymsci.2015.04.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Das A, Theato P. Activated Ester Containing Polymers: Opportunities and Challenges for the Design of Functional Macromolecules. Chem Rev 2015; 116:1434-95. [DOI: 10.1021/acs.chemrev.5b00291] [Citation(s) in RCA: 285] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anindita Das
- Institute
for Technical and
Macromolecular Chemistry, University of Hamburg, D-20146 Hamburg, Germany
| | - Patrick Theato
- Institute
for Technical and
Macromolecular Chemistry, University of Hamburg, D-20146 Hamburg, Germany
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15
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Sardon H, Pascual A, Mecerreyes D, Taton D, Cramail H, Hedrick JL. Synthesis of Polyurethanes Using Organocatalysis: A Perspective. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00384] [Citation(s) in RCA: 186] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Haritz Sardon
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta
Center, Avda. Tolosa
72, 20018 Donostia-San
Sebastian, Spain
| | - Ana Pascual
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta
Center, Avda. Tolosa
72, 20018 Donostia-San
Sebastian, Spain
| | - David Mecerreyes
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta
Center, Avda. Tolosa
72, 20018 Donostia-San
Sebastian, Spain
- Ikerbasque, Basque
Foundation for Science, E-48011 Bilbao, Spain
| | - Daniel Taton
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629-CNRS-Université de Bordeaux − Institut National Polytechnique de Bordeaux, 16 Avenue Pey Berland, 33607 Pessac, France
| | - Henri Cramail
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629-CNRS-Université de Bordeaux − Institut National Polytechnique de Bordeaux, 16 Avenue Pey Berland, 33607 Pessac, France
| | - James L. Hedrick
- IBM Almaden Research
Center, 650 Harry Road, San Jose, California 95120, United States
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16
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Mono- and bifunctional six-membered cyclic carbonates synthesized by diphenyl carbonate toward networked polycarbonate films. J Appl Polym Sci 2015. [DOI: 10.1002/app.41956] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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17
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Ono RJ, Liu SQ, Venkataraman S, Chin W, Yang YY, Hedrick JL. Benzyl Chloride-Functionalized Polycarbonates: A Versatile Platform for the Synthesis of Functional Biodegradable Polycarbonates. Macromolecules 2014. [DOI: 10.1021/ma501734y] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Robert J. Ono
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| | - Shao Qiong Liu
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Shrinivas Venkataraman
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Willy Chin
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - James L. Hedrick
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
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18
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Kumar A, Ujjwal RR, Mittal A, Bansal A, Ojha U. Polyacryloyl hydrazide: an efficient, simple, and cost effective precursor to a range of functional materials through hydrazide based click reactions. ACS APPLIED MATERIALS & INTERFACES 2014; 6:1855-65. [PMID: 24397622 DOI: 10.1021/am404837f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Preparation and studies of ion exchangeable epoxy resins, stimuli responsive hydrogels, and polymer-dye conjugates have been accomplished through hydrazide based click reactions using polyacryloyl hydrazide (PAH) as the precursor. A convenient synthesis of PAH with quantitative functionality was achieved by treatment of polymethyl acrylate with hydrazine hydrate in the presence of tetra-n-butyl ammonium bromide. PAH was cured with bisphenol A diglycidyl ether (BADGE) at 60 °C to form transparent resins with superior mechanical properties (tensile strength = 2-40 MPa, Young's modulus = 3.3-1043 MPa, and ultimate elongation = 9-75%) compared to the conventional resins prepared using triethylene tetramine. The resins exhibited higher ion exchange capacities (1.2-6.3 mmol/g) compared to the commercial AHA ammonium-type (Tokuyama Co., Japan) membranes. An azo dye with aldehyde functionality was covalently attached to PAH through hydrazone linkage, and the dye labeled PAH exhibited colorimetric sensing ability for base and acids up to micromolar concentration. The swelling of the PAH based hydrogel varied in the range 4-450% depending on the pH and temperature of the medium. The hydrogels gradually released 30% of the original encapsulated dye in a period of 200 h. PAH-hydroxy naphthaldehyde conjugate released 75% of the original loading in ∼11 days at 37 °C and pH 5.0 through cleavage of the -CONHN═C- linkage. The study depicts the versatility of PAH as a precursor and inspires synthesis of a range of new materials based on PAH in the future.
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Affiliation(s)
- Anuj Kumar
- Department of Chemistry, Rajiv Gandhi Institute of Petroleum Technology , Raebareli Ratapur Chowk, UP-229316, India
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19
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Sardon H, Chan JMW, Ono RJ, Mecerreyes D, Hedrick JL. Highly tunable polyurethanes: organocatalyzed polyaddition and subsequent post-polymerization modification of pentafluorophenyl ester sidechains. Polym Chem 2014. [DOI: 10.1039/c4py00262h] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A facile method for the synthesis of high molecular weight functionalized polyurethanes from a novel pentafluorophenyl ester-containing diol precursor is described.
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Affiliation(s)
- Haritz Sardon
- POLYMAT
- University of the Basque Country UPV/EHU Joxe Mari Korta Center
- 20018 Donostia-San Sebastián, Spain
- IBM Almaden Research Center
- San Jose, USA
| | | | | | - David Mecerreyes
- POLYMAT
- University of the Basque Country UPV/EHU Joxe Mari Korta Center
- 20018 Donostia-San Sebastián, Spain
- Ikerbasque
- Basque Foundation for Science
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20
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Yang H, Ge J, Huang W, Xue X, Chen J, Jiang B, Zhang G. Facile synthesis of biodegradable and clickable polymer. RSC Adv 2014. [DOI: 10.1039/c4ra00829d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
We report a facile approach to synthesize a biodegradable and clickable polymer consisting of ε-caprolactone (CL) and allyl methacrylate (AMA) with phosphazene base as the catalyst via hybrid copolymerization.
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Affiliation(s)
- Hongjun Yang
- School of Materials Science and Engineering
- Changzhou University
- Changzhou, P. R. China 213164
| | - Jun Ge
- School of Materials Science and Engineering
- Changzhou University
- Changzhou, P. R. China 213164
| | - Wenyan Huang
- School of Materials Science and Engineering
- Changzhou University
- Changzhou, P. R. China 213164
| | - Xiaoqiang Xue
- School of Materials Science and Engineering
- Changzhou University
- Changzhou, P. R. China 213164
| | - Jianhai Chen
- School of Materials Science and Engineering
- Changzhou University
- Changzhou, P. R. China 213164
| | - Bibiao Jiang
- School of Materials Science and Engineering
- Changzhou University
- Changzhou, P. R. China 213164
| | - Guangzhao Zhang
- Faculty of Materials Science and Engineering
- South China University of Technology
- Guangzhou, P. R. China 510640
- Hefei National Laboratory for Physical Sciences at Microscale
- Department of Chemical Physics
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Kumari K, Allam BK, Singh KN. A simple and sustainable tetrabutylammonium fluoride (TBAF)-catalyzed synthesis of azaarene-substituted 3-hydroxy-2-oxindoles through sp3 C–H functionalization. RSC Adv 2014. [DOI: 10.1039/c3ra47332e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
A green, practical, and metal-free protocol for direct addition of α-and γ-alkylazaarenes to isatins has been developed for the synthesis of biologically important azaarene-substituted 3-hydroxy-2-oxindoles in good to excellent yields.
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Affiliation(s)
- Kumkum Kumari
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221005, India
| | - Bharat Kumar Allam
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221005, India
| | - Krishna Nand Singh
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221005, India
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