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Camacho-Ramírez A, Meléndez-Zamudio M, Cervantes J, Palestino G, Guerra-Contreras A. One-step synthesis of amphiphilic copolymers PDMS- b-PEG using tris(pentafluorophenyl)borane and subsequent study of encapsulation and release of curcumin. J Mater Chem B 2024; 12:7076-7089. [PMID: 38817163 DOI: 10.1039/d4tb00113c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
A series of amphiphilic block copolymer (BCP) micelles based on poly(dimethylsiloxane) (PDMS) and poly(ethylene glycol) (PEG) were synthesized by a one-step reaction in the presence of tris(pentafluorophenyl)borane (BCF) as a catalyst. The structural composition of PDMS-b-PEG (PR11) and PEG-b-PDMS-b-PEG (PR12) was corroborated by FTIR, 29Si NMR, and TGA. The BCPs were assembled in an aqueous solution, obtaining micelles between 57 and 87 nm in size. PR11 exhibited a higher (2.0 g L-1) critical micelle concentration (CMC) than PR12 (1.5 g L-1) due to the short chain length. The synthesized nano micelles were used to encapsulate curcumin, which is one of three compounds of turmeric plant 'Curcuma longa' with significant biological activities, including antioxidant, chemoprotective, antibacterial, anti-inflammatory, antiviral, and anti-depressant properties. The encapsulation efficiency of curcumin was 60% for PR11 and 45% for PR12. Regarding the release study, PR11 delivered 53% curcumin after five days under acidic conditions (pH of 1.2) compared to 43% at a pH of 7.4. The degradation products of curcumin were observed under basic conditions and were more stable at acidic pH. In both situations, the release process is carried out by breaking the silyl-ether bond, allowing the release of curcumin. PR11 showed prolonged release times, so it could be used to reduce ingestion times and simultaneously work as a nanocarrier for other hydrophobic drugs.
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Affiliation(s)
- Abygail Camacho-Ramírez
- Department of Chemistry, Division of Natural and Exact Sciences, University of Guanajuato, Noria Alta S/N, Col. Noria Alta, Guanajuato C.P., 36050, Guanajuato, Mexico.
| | - Miguel Meléndez-Zamudio
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St. W, Hamilton, ON L8S 4M1, Canada
| | - Jorge Cervantes
- Department of Chemistry, Division of Natural and Exact Sciences, University of Guanajuato, Noria Alta S/N, Col. Noria Alta, Guanajuato C.P., 36050, Guanajuato, Mexico.
| | - Gabriela Palestino
- Biopolymers and Nanostructures Laboratory, Faculty of Chemical Sciences, Autonomous University of San Luis Potosí, S.L.P., C.P. 78210, Mexico
| | - Antonio Guerra-Contreras
- Department of Chemistry, Division of Natural and Exact Sciences, University of Guanajuato, Noria Alta S/N, Col. Noria Alta, Guanajuato C.P., 36050, Guanajuato, Mexico.
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Ikeda S, Shintani R. Anionic stitching polymerization of styryl(vinyl)silanes for the synthesis of sila-cyclic olefin polymers. Chem Commun (Camb) 2022; 58:5281-5284. [PMID: 35393996 DOI: 10.1039/d2cc00721e] [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
Anionic stitching polymerization of styryl(vinyl)silanes has been developed for the synthesis of a new type of silicon- and carbon-containing polymer possessing fused sila-bicyclic structures in the main chain. The obtained polymers were found to be thermally stable with relatively high glass-transition temperatures and highly transparent in the visible light region.
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Affiliation(s)
- Sho Ikeda
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.
| | - Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.
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Giri C, Sisk SE, Reisman L, Kammakakam I, Bara JE, West KN, Rabideau BD, Rupar PA. Anionic Ring-Opening Polymerizations of N-Sulfonylaziridines in Ionic Liquids. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c01885] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chandan Giri
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Sarah E. Sisk
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Louis Reisman
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Irshad Kammakakam
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Jason E. Bara
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Kevin N. West
- Department of Chemical & Biomolecular Engineering, The University of South Alabama, Mobile, Alabama 36688, United States
| | - Brooks D. Rabideau
- Department of Chemical & Biomolecular Engineering, The University of South Alabama, Mobile, Alabama 36688, United States
| | - Paul A. Rupar
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
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Kohsaka Y, Akae Y, Kawatani R, Kazama A. Polymer chemistry of α-substituted acrylates designed for functional-group synergy. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1989311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Yasuhiro Kohsaka
- Research Initiative for Supra-Materials (RISM), Shinshu University, Nagano, Japan
- Faculty of Textile Science and Technology, Shinshu University, Nagano, Japan
| | - Yosuke Akae
- Faculty of Textile Science and Technology, Shinshu University, Nagano, Japan
- Japan Society for the Promotion of Science, Tokyo, Japan
| | - Ryo Kawatani
- Faculty of Textile Science and Technology, Shinshu University, Nagano, Japan
| | - Akane Kazama
- Faculty of Textile Science and Technology, Shinshu University, Nagano, Japan
- Japan Society for the Promotion of Science, Tokyo, Japan
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Denisova YI, Shandryuk GA, Arinina MP, Levin IS, Zhigarev VA, Gringolts ML, Finkelshtein ES, Malkin AY, Kudryavtsev YV. Multiblock Copolymers of Norbornene and Cyclododecene: Chain Structure and Properties. Polymers (Basel) 2021; 13:1756. [PMID: 34072052 PMCID: PMC8199182 DOI: 10.3390/polym13111756] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/24/2021] [Accepted: 05/24/2021] [Indexed: 02/04/2023] Open
Abstract
We investigate the structure-property relations of the multiblock copolymers of norbornene with cyclododecene synthesized via the macromolecular cross-metathesis reaction between amorphous polynorbornene and semicrystalline polydodecenamer in the presence of the first-generation Grubbs catalyst. By adjusting the reaction time, catalyst amount, and composition of the initial system, we obtain a set of statistical multiblock copolymers that differ in the composition and average length of norbornene and dodecenylene unit sequences. Structural, thermal, and mechanical characterization of the copolymers with NMR, XRD, DSC (including thermal fractionation by successive self-nucleation and annealing), and rotational rheology allows us to relate the reaction conditions to the average length of crystallizable unit sequences, thicknesses of corresponding lamellas, and temperatures of their melting. We demonstrate that isolated dodecenylene units can be incorporated into crystalline lamellas so that even nearly random copolymers should retain crystallinity. Weak high-temperature endotherms observed in the multiblock copolymers of norbornene with cyclododecene and other cycloolefins could indicate that the corresponding systems are microphase-separated in the melt state.
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Affiliation(s)
- Yulia I. Denisova
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Georgiy A. Shandryuk
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Marianna P. Arinina
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Ivan S. Levin
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Vsevolod A. Zhigarev
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Maria L. Gringolts
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Eugene Sh. Finkelshtein
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Alexander Ya. Malkin
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Yaroslav V. Kudryavtsev
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071 Moscow, Russia
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Goseki R, Koizumi T, Kurakake R, Uchida S, Ishizone T. Living Anionic Polymerization of 4-Halostyrenes. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Raita Goseki
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 S1-13 Ookayama, Meguro-ku, Tokyo 152-8552 Japan
| | - Taro Koizumi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 S1-13 Ookayama, Meguro-ku, Tokyo 152-8552 Japan
| | - Reina Kurakake
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 S1-13 Ookayama, Meguro-ku, Tokyo 152-8552 Japan
| | - Satoshi Uchida
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 S1-13 Ookayama, Meguro-ku, Tokyo 152-8552 Japan
| | - Takashi Ishizone
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 S1-13 Ookayama, Meguro-ku, Tokyo 152-8552 Japan
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Farnaz Fazlalizadeh, Massoumi B, Banaei A, Jaymand M. A Thermal-Responsive Y-Shaped Miktoarm Amphiphilic Block Copolymer Composed of Poly(ε-caprolactone) and Poly(N-isopropylacrylamide) as a Nano-micellar Carrier for Anti-cancer Drugs. POLYMER SCIENCE SERIES B 2020. [DOI: 10.1134/s1560090420050061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Synthesis and characterization of the block copolymers using the novel bifunctional initiator by RAFT and FRP technics: evaluation of the primary polymerization parameters. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-2043-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ultra-low misorientation angle in small-molecule semiconductor/polyethylene oxide blends for organic thin film transistors. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02047-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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