1
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Zhang H, Xu N, Su B, Zhang J, Zhang C, Zhang Z, Guo B, Xu S, Wang S, Tang R. Synthesis of Amides via the Amination of Aldehydes with Hydroxylamines Promoted by TBAF·3H 2O. J Org Chem 2024. [PMID: 38781579 DOI: 10.1021/acs.joc.4c00246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
A metal-free, mild, and efficient method for the synthesis of amides has been developed from the amination of aldehydes with hydroxylamines promoted by TBAF·3H2O in the presence of KOH. Control experiments showed that the nitrone was the intermediate of this amination. By this method, a series of amides, biologically active compounds bebenil and a COX inhibitor were obtained in moderate to good yields.
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Affiliation(s)
- Huaiyuan Zhang
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
| | - Nuo Xu
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
| | - Botao Su
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
| | - Jingren Zhang
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
| | - Chongen Zhang
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
| | - Zhiyuan Zhang
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
| | - Binbin Guo
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
| | - Shengjie Xu
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
| | - Shouwei Wang
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
| | - Rongping Tang
- School of Applied Chemical Engineering, Lanzhou Petrochemical University of Vocational Technology, No. 1 Shandan Street, Lanzhou 730060, P. R. China
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2
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Jia J, Kato T, Maruoka K. p-Methoxybenzyl-Radical-Promoted Chemoselective Protection of sec-Alkylamides. J Org Chem 2023; 88:2575-2582. [PMID: 36731133 DOI: 10.1021/acs.joc.2c02582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The hitherto difficult site-selective p-methoxybenzylation of secondary amides using p-methoxybenzylated alkylsilyl peroxides as a novel p-methoxybenzylation agent under copper catalysis is reported. The reaction proceeds under mild reaction conditions in a highly chemoselective manner. This approach was successfully applied to the site-selective p-methoxybenzylation of peptides.
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Affiliation(s)
- JingWen Jia
- Laboratory of Organocatalytic Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, Kyoto 606-8501, Japan
| | - Terumasa Kato
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Keiji Maruoka
- Laboratory of Organocatalytic Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, Kyoto 606-8501, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
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3
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Guo Y, Luo W, Zhang J, Hu W. Dynamic Monte Carlo Simulations of Strain-Induced Crystallization in Multiblock Copolymers: Effects of Asymmetric Block Rigidity. J Phys Chem B 2022; 126:10768-10775. [PMID: 36502404 DOI: 10.1021/acs.jpcb.2c06827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Thermoplastic elastomers such as polyether-b-polyamides (or -polyesters), polyurethanes (or with -urea) and olefin block copolymers are commonly processed through a stretching process for achieving high elasticity and high toughness in their products, while the size diversity of semicrystalline microdomains of hard blocks appears as the key factor. By means of dynamic Monte Carlo simulations of strain-induced crystallization of locally concentrated and diluted crystallizable blocks alternatingly connected with noncrystallizable blocks in diblock and tetrablock copolymers, we have studied the size diversity of semicrystalline microdomains presumably raised by local concentration fluctuations of crystallizable blocks and found the dilution effects to persist from diblock to tetrablock copolymers. In the present work, we continued to study the effects of asymmetric block rigidity between crystallizable and noncrystallizable blocks on strain-induced crystallization of concentrated and diluted crystallizable blocks in diblock copolymers. The results showed that when crystallizable blocks hold higher thermodynamic rigidity than noncrystallizable blocks, the large semicrystalline domains become larger and the small semicrystalline domains become more, enhancing their size diversity. However, asymmetric kinetic rigidity has little effect. Our observations imply that industrial stretching processing could enhance the toughness of semicrystalline thermoplastic elastomers when their crystallizable blocks hold a higher thermodynamic rigidity relative to noncrystallizable blocks. Our integrated approach paved the way for a better understanding of the structure-property relationship in thermoplastic elastomers.
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Affiliation(s)
- Yaqian Guo
- School of Chemistry and Chemical Engineering, State Key Lab of Coordinate Chemistry, Nanjing University, Nanjing210023, China
| | - Wen Luo
- School of Chemistry and Chemical Engineering, State Key Lab of Coordinate Chemistry, Nanjing University, Nanjing210023, China
| | - Jiang Zhang
- School of Chemistry and Chemical Engineering, State Key Lab of Coordinate Chemistry, Nanjing University, Nanjing210023, China
| | - Wenbing Hu
- School of Chemistry and Chemical Engineering, State Key Lab of Coordinate Chemistry, Nanjing University, Nanjing210023, China
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4
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Mart M, Karakaya I, Jurczak J. DCC Mediated Direct Amidation of NSAID Naproxen, Ibuprofen and Ketoprofen with Secondary Amines. ChemistrySelect 2022. [DOI: 10.1002/slct.202202436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mehmet Mart
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka, 44/52 01-224 Warsaw Poland
| | - Idris Karakaya
- Department of Chemistry College of Basic Sciences Gebze Technical University 41400 Gebze Turkey
| | - Janusz Jurczak
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka, 44/52 01-224 Warsaw Poland
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5
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Jiang J, Liu F, Chen B, Li Y, Yang X, Tian F, Xu D, Zhai W. Microstructure development of PEBA and its impact on autoclave foaming behavior and inter-bead bonding of EPEBA beads. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Inherent Flame-Retardant, Humid Environment Stable and Blue Luminescent Polyamide Elastomer Regulated by Siloxane Moiety. Polymers (Basel) 2022; 14:polym14091919. [PMID: 35567088 PMCID: PMC9104639 DOI: 10.3390/polym14091919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 04/28/2022] [Indexed: 11/17/2022] Open
Abstract
The rapid development of the polymeric materials market has created an urgent demand for the thermoplastic polyamide elastomer (TPAE) owing to its greater functionality, and ability to be synthesized via a facile and industrial route. In this work, a series of novel silicone-containing polyamides (PA1212/Si12) were successfully synthesized from 1,12-dodecarboxylic acid (LA), 1,12-dodecarbondiamine (DMDA), and 1,3-bis (amino-propyl) tetramethyldisiloxane (BATS), via a one-pot melt polycondensation method in the absence of a catalyst. FTIR, 1H-NMR, GPC and inherent viscosity results cohesively prove that the polymerization of monomers was well conducted, and the chemical structure was in high accordance with the design. As expected, the Si12 unit-content of the copolymers regulate the properties of the series. As the feeding ratio of BATS in the diamines increases from 5 mol% to 40 mol%, the thermal transition temperatures, Tg and Tm, decline steadily before finally stabilizing at ~6 °C and 160 °C, respectively, indicating that the co-polyamides possess improved chain flexibility but restricted crystallization ability. The conspicuous evolution in crystalline morphology of the series was observed by XRD and AFM. The increased PA Si12 phase induces the crystallized PA 1212 phase to transit from a thermally-favorable large and rigid crystal structure (α phase) to a kinetically-favorable small and ductile crystal structure (γ phase). Reflected in their stress–strain behavior, PA1212/Si12 copolymers are successfully tailored from rigid plastic to ductile elastomer. The tensile strength mildly drops from above 40 MPa to ~30 MPa while the reversible elongation increases from ~50% to approximately 350%. Accordingly, the moderate surface tension differences in the monomers facilitate the efficient conduction of the co-polymerization process, and the distributed short siloxane unit in the backbone fulfills the copolymer with desirable elasticity. Interestingly, the novel silicone-containing polyamides also display Si12 unit-content dependent flame retardancy, humidity stability, and unconventional solid-state fluorescence properties. The elastomers exhibit a low bibulous rate and anti-fouling characteristics to dye droplets and mud contamination, pass the V–1 rating (UL 94) with a constantly declining PHRR value, and emit blue luminescence under a 365 nm light source. Herein, we propose a new facile strategy for developing a high-performance and multifunctional silicone-modified polyamide, which bears promising industrialization potential. In addition, this first reported silicone-containing thermoplastic polyamide elastomer, which is self-extinguishing, anti-fouling and blue-luminescent, will further broaden the application potential of thermoplastic polyamide elastomers.
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7
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Correlation between crystallization and mechanical stress revealed by chain scission of segmented amide copolymer. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Ma Y, Wen H, Xin C, He Y. Chain extension of thermoplastic polyamide elastomer and its foaming performance. J Appl Polym Sci 2022. [DOI: 10.1002/app.52233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yufei Ma
- College of Mechanical and Electrical Engineering Beijing University of Chemical Technology Beijing China
| | - Hui Wen
- College of Mechanical and Electrical Engineering Beijing University of Chemical Technology Beijing China
| | - Chunling Xin
- College of Mechanical and Electrical Engineering Beijing University of Chemical Technology Beijing China
- Engineering Research Center for Polymer Processing Equipment Ministry of Education Beijing China
| | - Yadong He
- College of Mechanical and Electrical Engineering Beijing University of Chemical Technology Beijing China
- Engineering Research Center for Polymer Processing Equipment Ministry of Education Beijing China
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9
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Arrington AS, Brown JR, Win MS, Winey KI, Long TE. Melt polycondensation of carboxytelechelic polyethylene for the design of degradable segmented copolyester polyolefins. Polym Chem 2022. [DOI: 10.1039/d2py00394e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Chain-transfer ring-opening metathesis polymerization (CT-ROMP) provided a route to carboxytelechelic polyethylene (PE) with subsequent incorporation into segmented copolymers.
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Affiliation(s)
- Anastasia S. Arrington
- School of Molecular Sciences & Biodesign Center for Sustainable Macromolecular Materials and Manufacturing, Arizona State University, Tempe, AZ 85281, USA
| | - James R. Brown
- School of Molecular Sciences & Biodesign Center for Sustainable Macromolecular Materials and Manufacturing, Arizona State University, Tempe, AZ 85281, USA
| | - Max S. Win
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Karen I. Winey
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Timothy E. Long
- School of Molecular Sciences & Biodesign Center for Sustainable Macromolecular Materials and Manufacturing, Arizona State University, Tempe, AZ 85281, USA
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10
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Xu Z, Yang T, Tang N, Ou Y, Yin SF, Kambe N, Qiu R. UV-Light-Induced N-Acylation of Amines with α-Diketones. Org Lett 2021; 23:5329-5333. [PMID: 34181430 DOI: 10.1021/acs.orglett.1c01599] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we develop a mild method for N-acylation of primary and secondary amines with α-diketones induced by ultraviolet (UV) light. Forty-six examples with various functional groups are explored at room temperature with irradiation by three 26 W UV lamps (350-380 nm). The yield reaches 97%. The gram scale experiment product yield is 76%. Moreover, this system can be applied to the synthesis of several amino acid derivatives. Mechanistic studies show that benzoin is generated in situ from benzil under UV irradiation.
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Affiliation(s)
- Zhihui Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Tianbao Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Niu Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Yifeng Ou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Nobuaki Kambe
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.,The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
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11
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Ernault E, Diani J, Hallais S, Cocquet C. Relationship between microstructure and mechanical properties of polyether block amide foams. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25712] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Estève Ernault
- Laboratoire de Mécanique des Solides CNRS UMR 7649, École Polytechnique, Institut Polytechnique de Paris Palaiseau France
| | - Julie Diani
- Laboratoire de Mécanique des Solides CNRS UMR 7649, École Polytechnique, Institut Polytechnique de Paris Palaiseau France
| | - Simon Hallais
- Laboratoire de Mécanique des Solides CNRS UMR 7649, École Polytechnique, Institut Polytechnique de Paris Palaiseau France
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12
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Lang F, Song L, Lin Y, You Y, Li D, Jiang Q. Preparation and properties of wear‐resistant and flame‐retardant polyphenylsulfoneurea/monomer casting nylon copolymers. J Appl Polym Sci 2021. [DOI: 10.1002/app.50750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Feng Lang
- State Key Laboratory of Powder Metallurgy Central South University Changsha China
| | - Ling Song
- State Key Laboratory of Powder Metallurgy Central South University Changsha China
- Zhuzhou Times New Material Technology Co., Ltd. Zhuzhou China
| | - Yi Lin
- State Key Laboratory of Powder Metallurgy Central South University Changsha China
| | - Yilan You
- College of Materials and Chemical Engineering Hunan City University Yiyang China
| | - Duxin Li
- State Key Laboratory of Powder Metallurgy Central South University Changsha China
| | - Qibin Jiang
- Zhuzhou Times New Material Technology Co., Ltd. Zhuzhou China
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13
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Tong X, Wang Z, Zhang ML, Wang XJ, Zhang G, Long SR, Yang J. Synthesis, Characterization and Non-Isothermal Crystallization Kinetics of a New Family of Poly (Ether-Block-Amide)s Based on Nylon 10T/10I. Polymers (Basel) 2020; 13:E72. [PMID: 33375409 PMCID: PMC7795608 DOI: 10.3390/polym13010072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 01/31/2023] Open
Abstract
A series of novel thermoplastic elastomers based on (poly(decamethylene terephthalamide/decamethylene isophthalamide), PA10T/10I) and poly(ethylene glycol) (PEG) were synthesized via a facile one-pot, efficient and pollution-free method. The thermal analysis demonstrates that the melting points of the resultant elastomers were in the range of 217.1-233.9 °C, and their initial decomposition temperatures were in the range of 385.3-387.5 °C. That is higher than most commercial polyamide-based thermoplastic elastomers. The tensile strength of the resultant elastomers ranges from 21.9 to 41.1 MPa. According to the high-temperature bending test results, the resultant samples still maintain considerably better mechanical properties than commercial products such as Pebax® 5533 (Arkema, Paris, France), and these novel thermoplastic elastomers could potentially be applied in high-temperature scenes. The non-isothermal crystallization kinetics of the resultant elastomers and PA10T/10I was investigated by means of Jeziorny and Mo's methods. Both of them could successfully describe the crystallization behavior of the resultant elastomers. Additionally, the activation energy of non-isothermal crystallization was calculated by the Kissinger method and the Friedman equation. The results indicate that the crystallization rates follow the order of TPAE-2000 > TPAE-1500 > PA10T/10I > TPAE-1000. From the crystallization analysis, the crystallization kinetics and activation energies are deeply affected by the molecular weight of hard segment.
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Affiliation(s)
- Xin Tong
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China; (X.T.); (Z.W.)
| | - Zhao Wang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China; (X.T.); (Z.W.)
| | - Mei-Ling Zhang
- Analytical and Testing Center, Sichuan University, Chengdu 610064, China; (M.-L.Z.); (G.Z.); (S.-R.L.)
| | - Xiao-Jun Wang
- Analytical and Testing Center, Sichuan University, Chengdu 610064, China; (M.-L.Z.); (G.Z.); (S.-R.L.)
- State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Gang Zhang
- Analytical and Testing Center, Sichuan University, Chengdu 610064, China; (M.-L.Z.); (G.Z.); (S.-R.L.)
| | - Sheng-Ru Long
- Analytical and Testing Center, Sichuan University, Chengdu 610064, China; (M.-L.Z.); (G.Z.); (S.-R.L.)
| | - Jie Yang
- Analytical and Testing Center, Sichuan University, Chengdu 610064, China; (M.-L.Z.); (G.Z.); (S.-R.L.)
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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14
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Figueiredo MP, Borrego-Sánchez A, García-Villén F, Miele D, Rossi S, Sandri G, Viseras C, Constantino VRL. Polymer/Iron-Based Layered Double Hydroxides as Multifunctional Wound Dressings. Pharmaceutics 2020; 12:E1130. [PMID: 33238477 PMCID: PMC7700130 DOI: 10.3390/pharmaceutics12111130] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 11/16/2022] Open
Abstract
This work presents the development of multifunctional therapeutic membranes based on a high-performance block copolymer scaffold formed by polyether (PE) and polyamide (PA) units (known as PEBA) and layered double hydroxide (LDH) biomaterials, with the aim to study their uses as wound dressings. Two LDH layer compositions were employed containing Mg2+ or Zn2+, Fe3+ and Al3+ cations, intercalated with chloride anions, abbreviated as Mg-Cl or Zn-Cl, or intercalated with naproxenate (NAP) anions, abbreviated as Mg-NAP or Zn-NAP. Membranes were structurally and physically characterized, and the in vitro drug release kinetics and cytotoxicity assessed. PEBA-loading NaNAP salt particles were also prepared for comparison. Intercalated NAP anions improved LDH-polymer interaction, resulting in membranes with greater mechanical performance compared to the polymer only or to the membranes containing the Cl-LDHs. Drug release (in saline solution) was sustained for at least 8 h for all samples and release kinetics could be modulated: a slower, an intermediate and a faster NAP release were observed from membranes containing Zn-NAP, NaNAP and Mg-NAP particles, respectively. In general, cell viability was higher in the presence of Mg-LDH and the membranes presented improved performance in comparison with the powdered samples. PEBA containing Mg-NAP sample stood out among all membranes in all the evaluated aspects, thus being considered a great candidate for application as multifunctional therapeutic dressings.
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Affiliation(s)
- Mariana Pires Figueiredo
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo—USP, Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil;
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada—UGR, Campus of Cartuja s/n, 18071 Granada, Spain; (A.B.-S.); (F.G.-V.)
- Andalusian Institute of Earth Sciences, Consejo Superior de Investigaciones Científicas-University of Granada, Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain
| | - Ana Borrego-Sánchez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada—UGR, Campus of Cartuja s/n, 18071 Granada, Spain; (A.B.-S.); (F.G.-V.)
- Andalusian Institute of Earth Sciences, Consejo Superior de Investigaciones Científicas-University of Granada, Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain
| | - Fátima García-Villén
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada—UGR, Campus of Cartuja s/n, 18071 Granada, Spain; (A.B.-S.); (F.G.-V.)
| | - Dalila Miele
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (D.M.); (S.R.); (G.S.)
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (D.M.); (S.R.); (G.S.)
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (D.M.); (S.R.); (G.S.)
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada—UGR, Campus of Cartuja s/n, 18071 Granada, Spain; (A.B.-S.); (F.G.-V.)
- Andalusian Institute of Earth Sciences, Consejo Superior de Investigaciones Científicas-University of Granada, Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain
| | - Vera Regina Leopoldo Constantino
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo—USP, Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil;
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15
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Ramachandran PV, Hamann HJ, Choudhary S. Amine-boranes as Dual-Purpose Reagents for Direct Amidation of Carboxylic Acids. Org Lett 2020; 22:8593-8597. [PMID: 33108211 DOI: 10.1021/acs.orglett.0c03184] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Amine-boranes serve as dual-purpose reagents for direct amidation, activating aliphatic and aromatic carboxylic acids and, subsequently, delivering amines to provide the corresponding amides in up to 99% yields. Delivery of gaseous or low-boiling amines as their borane complexes provides a major advantage over existing methodologies. Utilizing amine-boranes containing borane incompatible functionalities allows for the preparation of functionalized amides. An intermolecular mechanism proceeding through a triacyloxyborane-amine complex is proposed.
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Affiliation(s)
- P Veeraraghavan Ramachandran
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Henry J Hamann
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Shivani Choudhary
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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16
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Nébouy M, Louhichi A, Baeza GP. Volume fraction and width of ribbon-like crystallites control the rubbery modulus of segmented block copolymers. JOURNAL OF POLYMER ENGINEERING 2020. [DOI: 10.1515/polyeng-2019-0222] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractWe discuss the origin of the plateau modulus enhancement (χ) in semi-crystalline segmented block copolymers by increasing the concentration in hard segments within the chains (XHS). The message we deliver is that the plateau modulus of these thermoplastic elastomers is greatly dominated by the volume fraction (Φ) and the width (W) of crystallites according to χ–1 ~ ΦW in agreement with a recent topological model we have developed. We start by a quick review of literature with the aim to extract χ(Φ) for different chemical structures. As we suspected, we find that most of the data falls onto a mastercurve, in line with our predictions, confirming that the reinforcement in such materials is mainly dominated by the crystallite’s content. This important result is then supported by the investigation of copolymer mixtures in which Φ is fixed, providing a similar reinforcement, while the chains compositions is significantly different. Finally, we show that the reinforcement can be enhanced at constant Φ by increasing W for a given class of block copolymers. This can be done by changing the process route and is again in good agreement with our expectations.
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Affiliation(s)
- Matthias Nébouy
- Univ Lyon, INSA-Lyon, CNRS, MATEIS, UMR5510, F-69621, Villeurbanne, France
| | - Ameur Louhichi
- University of Montpellier, CNRS, Laboratoire Charles Coulomb, UMR 5221, F34095, Montpellier, France
| | - Guilhem P. Baeza
- Univ Lyon, INSA-Lyon, CNRS, MATEIS, UMR5510, F-69621, Villeurbanne, France
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17
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Bardin A, Le Gac P, Bindi H, Fayolle B. Relationships between molar mass and fracture properties of segmented urethane and amide copolymers modified by chemical degradation. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200460] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Antoine Bardin
- Marine Structure Laboratory IFREMER, Centre de Bretagne Plouzané France
- Thales DMS France Valbonne France
- PIMM laboratory, Arts et Metiers Institute of Technology CNRS, Cnam, HESAM Université Paris France
| | | | | | - Bruno Fayolle
- PIMM laboratory, Arts et Metiers Institute of Technology CNRS, Cnam, HESAM Université Paris France
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18
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Ji F, Fu P, Wang S, Liu T, Lv L, Guan X, Zhang X, Zhao H, Qiao X, Pang X, Liu M, Zhao Q, Cui Z. Novel biocompatible multiblock Polydimethylsiloxane-PA1212 copolymers. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104688] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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19
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Gao Y, Yang T, Wang X, Xia Y, Zhu B, He Y. Synthesis and characterization of poly(hexamethylene terephthalate/hexamethylene oxamide) alternating copolyamide (
alt‐PA6T
/62). J Appl Polym Sci 2020. [DOI: 10.1002/app.49773] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuanbo Gao
- Shanghai Collaborative Innovation Center for High Performance Fiber Composites, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering Donghua University Shanghai China
- Innovation Center for Textile Science and Technology Donghua University Shanghai China
| | - Tingting Yang
- Shanghai Collaborative Innovation Center for High Performance Fiber Composites, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering Donghua University Shanghai China
- Innovation Center for Textile Science and Technology Donghua University Shanghai China
| | - Xueli Wang
- Innovation Center for Textile Science and Technology Donghua University Shanghai China
| | - Yumin Xia
- Shanghai Collaborative Innovation Center for High Performance Fiber Composites, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering Donghua University Shanghai China
| | - Bo Zhu
- School of Materials Science and Engineering Shanghai University Shanghai China
| | - Yong He
- Shanghai Collaborative Innovation Center for High Performance Fiber Composites, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering Donghua University Shanghai China
- Innovation Center for Textile Science and Technology Donghua University Shanghai China
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20
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Persson AMR, Hinrichsen EL, Andreassen E. Adhesion between thermoplastic elastomers and polyamide‐12 with different glass fiber fractions in two‐component injection molding. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25408] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anna‐Maria M. R. Persson
- Polymer and Composite Materials GroupSINTEF Industry Oslo Norway
- Department of Manufacturing and Civil EngineeringNTNU Gjøvik Norway
| | | | - Erik Andreassen
- Polymer and Composite Materials GroupSINTEF Industry Oslo Norway
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21
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Elyasi Kojabad M, Momeni M, Babaluo AA, Vaezi MJ. PEBA/PSf Multilayer Composite Membranes for CO
2
Separation: Influence of Dip Coating Parameters. Chem Eng Technol 2020. [DOI: 10.1002/ceat.201900262] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Mahdi Elyasi Kojabad
- Sahand University of TechnologyNanostructure Material Research Center (NMRC) P.O. Box 51335-1996 Tabriz Iran
| | - Masumeh Momeni
- Sahand University of TechnologyNanostructure Material Research Center (NMRC) P.O. Box 51335-1996 Tabriz Iran
| | - Ali Akbar Babaluo
- Sahand University of TechnologyNanostructure Material Research Center (NMRC) P.O. Box 51335-1996 Tabriz Iran
| | - Mohammad Javad Vaezi
- Sahand University of TechnologyNanostructure Material Research Center (NMRC) P.O. Box 51335-1996 Tabriz Iran
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22
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Mikshiev VY, Pozharskii AF, Filarowski A, Novikov AS, Antonov AS, Tolstoy PM, Vovk MA, Khoroshilova OV. How Strong is Hydrogen Bonding to Amide Nitrogen? Chemphyschem 2020; 21:651-658. [PMID: 31953976 DOI: 10.1002/cphc.201901104] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/18/2019] [Indexed: 12/23/2022]
Abstract
The protonation of the carboxamide nitrogen atom is an essential part of in vivo and in vitro processes (cis-trans isomerization, amides hydrolysis etc). This phenomenon is well studied in geometrically strongly distorted amides, although there is little data concerning the protonation of undistorted amides. In the latter case, the participation of amide nitrogen in hydrogen bonding (which can be regarded as the incipient state of a proton transfer process) is less well-studied. Thus, it would be a worthy goal to investigate the enthalpy of this interaction. We prepared and investigated a set of peri-substituted naphthalenes containing the protonated dimethylamino group next to the amide nitrogen atom ("amide proton sponges"), which could serve as models for the study of an intramolecular hydrogen bond with the amide nitrogen atom. X-Ray analysis, NMR spectra, basicity values as well as quantum chemical calculations revealed the existence of a hydrogen bond with the amide nitrogen, that should be attributed to the borderline between moderate and weak intramolecular hydrogen bonds (2-7 kcal ⋅ mol-1 ).
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Affiliation(s)
- Vladimir Y Mikshiev
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russian Federation
| | - Alexander F Pozharskii
- Department of Organic Chemistry, Southern Federal University, Zorge str. 7, 344090, Rostov-on-Don, Russian Federation
| | - Alexander Filarowski
- Faculty of Chemistry, Wroclaw University, F. Joliot-Curie str. 14, 50-383, Wroclaw, Poland
- Industrial University of Tyumen, Volodarskogo str. 38, 625000, Tyumen, Russian Federation
| | - Alexander S Novikov
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russian Federation
| | - Alexander S Antonov
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russian Federation
| | - Peter M Tolstoy
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russian Federation
| | - Mikhail A Vovk
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russian Federation
| | - Olesya V Khoroshilova
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russian Federation
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23
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Construction of stable hydrogen bonds at high temperature for preparation of polyimide films with ultralow coefficient of thermal expansion and high Tg. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122100] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Zheng H, Pan G, Huang P, Xu D, Zhai W. Fundamental Influences of Crosslinking Structure on the Cell Morphology, Creep Property, Thermal Property, and Recycling Behavior of Microcellular EPDM Foams Blown with Compressed CO2. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b05611] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hao Zheng
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong Province 510275, China
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Ge Pan
- State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Pengke Huang
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
| | - Donghua Xu
- State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Wentao Zhai
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong Province 510275, China
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25
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26
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Klonos PA, Kluge M, Robert T, Kyritsis A, Bikiaris DN. Molecular dynamics, crystallization and hydration study of Poly(Propylene succinate) based Poly(Ester amide)s. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122056] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Sarkar A, Connor AJ, Koffas M, Zha RH. Chemical Synthesis of Silk-Mimetic Polymers. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E4086. [PMID: 31817786 PMCID: PMC6947416 DOI: 10.3390/ma12244086] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 01/15/2023]
Abstract
Silk is a naturally occurring high-performance material that can surpass man-made polymers in toughness and strength. The remarkable mechanical properties of silk result from the primary sequence of silk fibroin, which bears semblance to a linear segmented copolymer with alternating rigid ("crystalline") and flexible ("amorphous") blocks. Silk-mimetic polymers are therefore of great emerging interest, as they can potentially exhibit the advantageous features of natural silk while possessing synthetic flexibility as well as non-natural compositions. This review describes the relationships between primary sequence and material properties in natural silk fibroin and furthermore discusses chemical approaches towards the synthesis of silk-mimetic polymers. In particular, step-growth polymerization, controlled radical polymerization, and copolymerization with naturally derived silk fibroin are presented as strategies for synthesizing silk-mimetic polymers with varying molecular weights and degrees of sequence control. Strategies for improving macromolecular solubility during polymerization are also highlighted. Lastly, the relationships between synthetic approach, supramolecular structure, and bulk material properties are explored in this review, with the aim of providing an informative perspective on the challenges facing chemical synthesis of silk-mimetic polymers with desirable properties.
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Affiliation(s)
| | | | | | - R. Helen Zha
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (A.S.); (A.J.C.); (M.K.)
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28
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Karimi AR, Nikravesh G, Bayat F, Khodadadi A, Tarighatjoo M. Tunable Thermo‐ and pH‐Responsive Hydrogels and MWCNTs/Hydrogel Containing 2‐Aminobenzamide Units in Their Crosslink Chains. ChemistrySelect 2019. [DOI: 10.1002/slct.201902045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ali R. Karimi
- Department of ChemistryFaculty of ScienceArak University Arak 38156-8-8349 Iran
| | - Golara Nikravesh
- Department of ChemistryFaculty of ScienceArak University Arak 38156-8-8349 Iran
| | - Fahimeh Bayat
- Department of ChemistryFaculty of ScienceArak University Arak 38156-8-8349 Iran
| | - Azam Khodadadi
- Department of ChemistryFaculty of ScienceArak University Arak 38156-8-8349 Iran
| | - Mahsa Tarighatjoo
- Department of ChemistryFaculty of ScienceArak University Arak 38156-8-8349 Iran
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29
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Cross-linked Polyamides Prepared through Direct Bulk Michael Addition and Polycondensation from 1,6-Hexanediamine and Methyl Acrylate. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-019-2332-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Herzberger J, Sirrine JM, Williams CB, Long TE. Polymer Design for 3D Printing Elastomers: Recent Advances in Structure, Properties, and Printing. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.101144] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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Abstract
Amide bonds are amongst the most fundamental groups in organic synthesis, and they are widely found in natural products, pharmaceuticals and material science. Over the past decade, methods for the direct amination of aldehydes have received much attention as they represent atom- and step-economic routes for amide synthesis from readily available starting materials. Herein, the research advances on the direct amination of aldehydes are reviewed and categorized by the types of catalyst system. Detailed reaction scopes and mechanisms will be discussed, as well as the limitations of current procedures and the prospects for the future.
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Affiliation(s)
- Yaorui Ma
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Junfei Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
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32
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Zhu X, Wang Z, Liu J, Min X, Wang T, Fan X. A New Strategy to Synthesize α,ω‐Dihydroxy Multiblock Copolymers via [CpRu(CH
3
CN)
3
]PF
6
/Quinaldic Acid Catalyst. Macromol Rapid Commun 2019; 40:e1900135. [DOI: 10.1002/marc.201900135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/16/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Xiuzhong Zhu
- Ministry of Education and Shaanxi Key Laboratory of Macromolecular Science and TechnologyThe Key Laboratory of Space Applied Physics and ChemistrySchool of ScienceNorthwestern Polytechnical University Xi’an 710072 P. R. China
| | - Zichao Wang
- Ministry of Education and Shaanxi Key Laboratory of Macromolecular Science and TechnologyThe Key Laboratory of Space Applied Physics and ChemistrySchool of ScienceNorthwestern Polytechnical University Xi’an 710072 P. R. China
| | - Jie Liu
- Ministry of Education and Shaanxi Key Laboratory of Macromolecular Science and TechnologyThe Key Laboratory of Space Applied Physics and ChemistrySchool of ScienceNorthwestern Polytechnical University Xi’an 710072 P. R. China
| | - Xin Min
- Ministry of Education and Shaanxi Key Laboratory of Macromolecular Science and TechnologyThe Key Laboratory of Space Applied Physics and ChemistrySchool of ScienceNorthwestern Polytechnical University Xi’an 710072 P. R. China
| | - Tong Wang
- Ministry of Education and Shaanxi Key Laboratory of Macromolecular Science and TechnologyThe Key Laboratory of Space Applied Physics and ChemistrySchool of ScienceNorthwestern Polytechnical University Xi’an 710072 P. R. China
| | - Xiaodong Fan
- Ministry of Education and Shaanxi Key Laboratory of Macromolecular Science and TechnologyThe Key Laboratory of Space Applied Physics and ChemistrySchool of ScienceNorthwestern Polytechnical University Xi’an 710072 P. R. China
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33
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Thermal stability and decomposition behaviors of segmented copolymer poly(urethane-urea-amide). JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1634-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Hochleitner G, Fürsattel E, Giesa R, Groll J, Schmidt HW, Dalton PD. Melt Electrowriting of Thermoplastic Elastomers. Macromol Rapid Commun 2018; 39:e1800055. [DOI: 10.1002/marc.201800055] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 02/26/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Gernot Hochleitner
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute; University Hospital Würzburg; Pleicherwall 2 97070 Würzburg Germany
| | - Eva Fürsattel
- Department of Macromolecular Chemistry I and Bavarian Polymer Institute; University of Bayreuth; 95440 Bayreuth Germany
| | - Reiner Giesa
- Department of Macromolecular Chemistry I and Bavarian Polymer Institute; University of Bayreuth; 95440 Bayreuth Germany
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute; University Hospital Würzburg; Pleicherwall 2 97070 Würzburg Germany
| | - Hans-Werner Schmidt
- Department of Macromolecular Chemistry I and Bavarian Polymer Institute; University of Bayreuth; 95440 Bayreuth Germany
| | - Paul D. Dalton
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute; University Hospital Würzburg; Pleicherwall 2 97070 Würzburg Germany
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35
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Yang Y, Kong W, Yuan Y, Zhou C, Cai X. Structure-properties relationships of novel poly(carbonate-co-amide) segmented copolymers with polyamide-6 as hard segments and polycarbonate as soft segments. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Baeza GP. The Reinforcement Effect in Well-Defined Segmented Copolymers: Counting the Topological Constraints at the Mesoscopic Scale. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02208] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Guilhem P. Baeza
- University of Lyon, INSA-Lyon,, CNRS, MATEIS, UMR5510, 7 avenue Jean Capelle, F-69621 Villeurbanne, France
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37
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Ortega A, Meléndez-Ortiz HI, García-Uriostegui L, Ávila-Soria G. Drug delivery system based on poly(ether-block-amide) and acrylic acid for controlled release of vancomycin. J Appl Polym Sci 2018. [DOI: 10.1002/app.45745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alejandra Ortega
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria; Ciudad de México 04510 México
| | - H. Iván Meléndez-Ortiz
- CONACyT-Centro de Investigaciones en Química Aplicada, Blvd. Enrique Reyna Hermosillo #140; Saltillo Coahuila 25294 México
| | | | - Griselda Ávila-Soria
- Laboratory of Ecological Evolutionary Developmental Biology, Reef System Unit, Institute of Marine Sciences and Limnology (ICML) of the National Autonomous University of Mexico (UNAM); Puerto Morelos, Quintana Roo, C.P 77580 México
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38
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Yang Y, Kong W, Cai X. Preparation and characterization of a new class of poly(ether-block-amide)s via solvent free reactive processing. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yunyun Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; No. 24, First South Section First Ring Road Wuhou District, Chengdu 610065 China
| | - Weibo Kong
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; No. 24, First South Section First Ring Road Wuhou District, Chengdu 610065 China
| | - Xufu Cai
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; No. 24, First South Section First Ring Road Wuhou District, Chengdu 610065 China
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39
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Kong W, Yang Y, Liu Z, Lei J. Structure-property relations of novel polyamide-6 elastomers prepared through reactive processing. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1326-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Dennis JM, Fahs GB, Moon NG, Mondschein RJ, Moore RB, Wilkes GL, Long TE. Synthesis of Polysulfone-Containing Poly(butylene terephthalate) Segmented Block Copolymers: Influence of Segment Length on Thermomechanical Performance. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00557] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joseph M. Dennis
- Department of Chemistry,
Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Gregory B. Fahs
- Department of Chemistry,
Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Nicholas G. Moon
- Department of Chemistry,
Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Ryan J. Mondschein
- Department of Chemistry,
Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Robert B. Moore
- Department of Chemistry,
Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Garth L. Wilkes
- Department of Chemistry,
Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Timothy E. Long
- Department of Chemistry,
Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
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41
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Moon NG, Mondschein RJ, Long TE. Poly(β-thioesters) containing monodisperse oxamide hard segments using a chemoselective thiol-Michael addition reaction. Polym Chem 2017. [DOI: 10.1039/c7py00021a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chemoselective thiol-Michael addition reaction allows access to oxamide-containing segmented copolymers using a one-pot, one-step procedure.
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Affiliation(s)
- Nicholas G. Moon
- Department of Chemistry
- Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
| | - Ryan J. Mondschein
- Department of Chemistry
- Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
| | - Timothy E. Long
- Department of Chemistry
- Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
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42
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Kong W, Yang Y, Liu Z, Jiang L, Zhou C, Lei J. Structure-property relations of nylon-6 and polytetramethylene glycol based multiblock copolymers with microphase separation prepared through reactive processing. POLYM INT 2016. [DOI: 10.1002/pi.5278] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Weibo Kong
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Yunyun Yang
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Zhimeng Liu
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Liang Jiang
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Changlin Zhou
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Jingxin Lei
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
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43
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