1
|
Mayer J, Steinbrecher R, Metzsch-Zilligen E, Pfaendner R. Antioxidant Activity of Biogenic Cinnamic Acid Derivatives in Polypropylene. Polymers (Basel) 2023; 15:3621. [PMID: 37688246 PMCID: PMC10490272 DOI: 10.3390/polym15173621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/21/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
Antioxidants (AOs) from natural resources are an attractive research area, as petroleum-based products can be replaced in polymer stabilization. Therefore, novel esters based on the p-hydroxycinnamic acids p-coumaric acid, ferulic acid and sinapic acid were synthesized and their structure properties relationships were investigated. The structures of the novel bio-based antioxidants were verified using NMR and Fourier-transform infrared (FTIR) spectrometry. The high thermal stability above 280 °C and, therefore, their suitability as potential plastic stabilizers were shown using thermal gravimetric analysis (TGA). The radical scavenging activity of the synthesized esters was evaluated by using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. Stabilization performance was evaluated in polypropylene (PP) using extended extrusion experiments, oxidation induction time (OIT) measurements and accelerated heat aging. In particular, the sinapic acid derivative provides a processing stability of PP being superior to the commercial state-of-the-art stabilizer octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate.
Collapse
Affiliation(s)
- Jannik Mayer
- Division Plastics, Fraunhofer Institute for Structural Durability and System Reliability LBF, Schlossgartenstraße 6, D-64289 Darmstadt, Germany; (J.M.); (E.M.-Z.)
| | - René Steinbrecher
- Department Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, House 25, D-14476 Potsdam, Germany;
| | - Elke Metzsch-Zilligen
- Division Plastics, Fraunhofer Institute for Structural Durability and System Reliability LBF, Schlossgartenstraße 6, D-64289 Darmstadt, Germany; (J.M.); (E.M.-Z.)
| | - Rudolf Pfaendner
- Division Plastics, Fraunhofer Institute for Structural Durability and System Reliability LBF, Schlossgartenstraße 6, D-64289 Darmstadt, Germany; (J.M.); (E.M.-Z.)
| |
Collapse
|
2
|
Kossov A, Makrushin V, Levin I, Matson S. The Effect of Thermal Annealing on the Structure and Gas Transport Properties of Poly(1-Trimethylsilyl-1-Propyne) Films with the Addition of Phenolic Antioxidants. Polymers (Basel) 2023; 15:polym15020286. [PMID: 36679167 PMCID: PMC9862662 DOI: 10.3390/polym15020286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/26/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023] Open
Abstract
The thermally activated relaxation of poly(1-trimethylsilyl-1-propyne) (PTMSP) samples of various cis-/trans-compositions (50-80% units of cis-configuration) in the presence of phenolic antioxidants of various structures was investigated. It was pointed out that polymers with a high content of cis-units exhibited greater thermal-oxidative stability due to the greater flexibility of the cis-enriched macrochains. The use of hindered phenols as antioxidants made it possible to prevent the process of thermally initiated oxidative degradation. At the same time, the most effective stabilizing agents were antioxidants with larger molecules such as Vulkanox BKF, Irganox 1010, and Irganox 1076. It was shown that the permeability coefficients of stabilized PTMSP during thermal treatment initially slightly decreased (by 20-30%), which, according to the X-ray diffraction data, was associated with an increase in the density of the macrochain packing, and during further heating remained practically unchanged. Note that for the cis-enriched samples, no signs of oxidation or decrease in the transport characteristics were observed during polymer heating for 240 h at 140 °C.
Collapse
|
3
|
Hu KX, Zhao ZY, Lu P, He S, Deng C, Wang YZ. Caffeic Acid Decorated Ammonium Polyphosphate-Based Flame Retardant for Fire Safety and Anti-Aging of Wood Plastic Composites. Polym Degrad Stab 2023. [DOI: 10.1016/j.polymdegradstab.2023.110275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
4
|
Zhang L, Wang Z, Tian J, Meng S, Zhou Y. Thermal Aging Properties of 500 kV AC and DC XLPE Cable Insulation Materials. Polymers (Basel) 2022; 14:polym14245400. [PMID: 36559767 PMCID: PMC9780958 DOI: 10.3390/polym14245400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Despite similar material composition and insulation application, the alternating current (AC) cross-linked polyethylene (XLPE) and direct current (DC) XLPE materials cannot replace each other due to different voltage forms. Herein, this work presents a systematical investigation into the effects of thermal aging on the material composition and properties of 500 kV-level commercial AC XLPE and DC XLPE materials. A higher content of antioxidants in the AC XLPE than in the DC XLPE was experimentally demonstrated via thermal analysis technologies, such as oxidation-induced time and oxidation-induced temperature. Retarded thermal oxidation and suppression of space charge effects were observed in thermally aged AC XLPE samples. On the other hand, the carbonyl index of DC XLPE dramatically rose when thermal aging was up to 168 h. The newly generated oxygen-containing groups provided deep trapping sites (~0.95 eV) for space charges and caused severe electric field distortion (120%) under -50 kV/mm at room temperature in the aged DC XLPE samples. For the unaged XLPE materials, the positive space charge packets were attributed to the residue crosslinking byproducts, even after being treated in vacuum at 70 °C for 24 h. Thus, it was reasoned that the DC XLPE material had a lower crosslinking degree to guarantee fewer crosslinking byproducts. This work offers a simple but accurate method for evaluating thermal oxidation resistance and space charge properties crucial for developing high-performance HVDC cable insulation materials.
Collapse
Affiliation(s)
- Ling Zhang
- State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan 430074, China
- State Key Laboratory of Power System Operation and Control, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
- Correspondence: (L.Z.); (Y.Z.)
| | - Zhaowei Wang
- Wuwei Electric Power Supply Company of the State Grid, Wuwei 733000, China
| | - Jihuan Tian
- State Key Laboratory of Power System Operation and Control, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
| | - Shaoxin Meng
- State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan 430074, China
| | - Yuanxiang Zhou
- State Key Laboratory of Power System Operation and Control, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
- Correspondence: (L.Z.); (Y.Z.)
| |
Collapse
|
5
|
Mayer J, Metzsch-Zilligen E, Pfaendner R. Corrected version: Novel multifunctional antioxidants for polymers using eugenol as biogenic building block. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.109954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
6
|
Nicolas C, Huang J, Richaud E, David A, Gac PYL, Minne W, Drozdzak R, Recher G, Fontaine L, Montembault V. Enhanced thermo-oxidative stability of polydicyclopentadiene containing covalently bound nitroxide groups. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2021.109765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
7
|
Jiang S, Liu Y, Zou X, He M, Zhang K, Xu G, Qin S. Synthesis and application of new macromolecular hindered phenol antioxidants of polyamide 6. J Appl Polym Sci 2021. [DOI: 10.1002/app.51184] [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)
- Siyuan Jiang
- Department of Polymer Material and Engineering, College of Materials and Metallurgy Guizhou University Guiyang China
| | - Yufei Liu
- Department of Polymer Material and Engineering, College of Materials and Metallurgy Guizhou University Guiyang China
- National Engineering Research Center for Compounding and Modification of Polymeric Materials Guiyang China
| | - Xiaoyu Zou
- Department of Polymer Material and Engineering, College of Materials and Metallurgy Guizhou University Guiyang China
| | - Min He
- Department of Polymer Material and Engineering, College of Materials and Metallurgy Guizhou University Guiyang China
| | - Kai Zhang
- National Engineering Research Center for Compounding and Modification of Polymeric Materials Guiyang China
| | - Guomin Xu
- Department of Polymer Material and Engineering, College of Materials and Metallurgy Guizhou University Guiyang China
- National Engineering Research Center for Compounding and Modification of Polymeric Materials Guiyang China
| | - Shuhao Qin
- National Engineering Research Center for Compounding and Modification of Polymeric Materials Guiyang China
| |
Collapse
|
8
|
Li C, Li Y, Xia X, Huang J, Sun P, Zhang N, Wang J, Li F. Influence of the chemical structure of para‐bridged group on the antioxidant behavior of hindered phenol antioxidants in HDPE resin. J Appl Polym Sci 2020. [DOI: 10.1002/app.49505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cuiqin Li
- Provincial Key Laboratory of Oil&Gas Chemical Technology, College of Chemistry & EngineeringNortheast Petroleum University Daqing Heilongjiang China
| | - Yang Li
- Provincial Key Laboratory of Oil&Gas Chemical Technology, College of Chemistry & EngineeringNortheast Petroleum University Daqing Heilongjiang China
| | - Xinxin Xia
- Provincial Key Laboratory of Oil&Gas Chemical Technology, College of Chemistry & EngineeringNortheast Petroleum University Daqing Heilongjiang China
| | - Jin Huang
- Provincial Key Laboratory of Oil&Gas Chemical Technology, College of Chemistry & EngineeringNortheast Petroleum University Daqing Heilongjiang China
- Heilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and TechnologyDaqing Normal University Daqing Heilongjiang China
| | - Peng Sun
- Provincial Key Laboratory of Oil&Gas Chemical Technology, College of Chemistry & EngineeringNortheast Petroleum University Daqing Heilongjiang China
| | - Na Zhang
- Provincial Key Laboratory of Oil&Gas Chemical Technology, College of Chemistry & EngineeringNortheast Petroleum University Daqing Heilongjiang China
| | - Jun Wang
- Provincial Key Laboratory of Oil&Gas Chemical Technology, College of Chemistry & EngineeringNortheast Petroleum University Daqing Heilongjiang China
| | - Feng Li
- Provincial Key Laboratory of Oil&Gas Chemical Technology, College of Chemistry & EngineeringNortheast Petroleum University Daqing Heilongjiang China
| |
Collapse
|
9
|
Cui X, Gu G, Li C, Liu N, Gong Y, Liu B. Synthesis and properties of biomass eugenol-functionalized isotactic poly(1-butene)s. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
10
|
Wu Y, Jiang F, Chai C, Zheng K, Cui Y, Zhang L. Facile synthesis of oligo(4-methoxyphenol) in water and evaluation of its efficiency in stabilization of polypropylene. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yufeng Wu
- College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
- Henan Engineering Research Center of Industrial Circulating Water Treatment; Kaifeng 475004 China
| | - Fan Jiang
- College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
| | - Chunxiao Chai
- College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
| | - Ke Zheng
- College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
| | - Yuanchen Cui
- College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
| | - Lei Zhang
- College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
- Henan Engineering Research Center of Industrial Circulating Water Treatment; Kaifeng 475004 China
| |
Collapse
|
11
|
Enhanced thermo-oxidative stability through covalent attachment of hindered phenolic antioxidant on surface functionalized polypropylene. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.01.048] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
12
|
Grafting of Hindered Phenol Groups onto Ethylene/α-Olefin Copolymer by Nitroxide Radical Coupling. Polymers (Basel) 2017; 9:polym9120670. [PMID: 30965973 PMCID: PMC6418857 DOI: 10.3390/polym9120670] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/29/2017] [Accepted: 11/30/2017] [Indexed: 11/17/2022] Open
Abstract
The covalent immobilization of hindered phenol groups, with potential antioxidant activity, onto an ethylene/α-olefin (EOC) copolymer was carried out by the nitroxide radical coupling (NRC) reaction performed in the melt with a peroxide and the 3,5-di-tert-butyl-4-hydroxybenzoyl-2,2,6,6-tetramethylpiperidine-1-oxyl radical (BHB-T). Functionalized EOC (EOC-g-(BHB-T)) was exposed to photo- and thermo-oxidation. By comparison with some model compounds bearing the (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) moiety or the hindered phenol unit, it was observed that the grafted BHB-T could effectively help the stabilization of the polymer matrix both under photo- and thermo-oxidation. In addition, the immobilization of BHB-T can effectively increase the service life of the functionalized polymers when polymer films were put in contact with ethanol solution thus simulating a possible application of the modified polymer.
Collapse
|
13
|
Li C, Zhai X, Guo S, Li H, Sun P, Wang H, Wang J. Antiradical Ability of Dendrimer-Bridged Hindered Phenol and Its Antioxidant Property in Polyolefin. ChemistrySelect 2017. [DOI: 10.1002/slct.201701114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Cuiqin Li
- Provincial Key Laboratory of Oil&Gas Chemical Technology; College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing, Heilongjiang 163318 China
| | - Xue Zhai
- Provincial Key Laboratory of Oil&Gas Chemical Technology; College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing, Heilongjiang 163318 China
| | - Suyue Guo
- Provincial Key Laboratory of Oil&Gas Chemical Technology; College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing, Heilongjiang 163318 China
| | - Huanyu Li
- Provincial Key Laboratory of Oil&Gas Chemical Technology; College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing, Heilongjiang 163318 China
| | - Peng Sun
- Provincial Key Laboratory of Oil&Gas Chemical Technology; College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing, Heilongjiang 163318 China
| | - Hua Wang
- Daqing Petrochemical Research Center; CNPC; Daqing, Heilongjiang 163318 China
| | - Jun Wang
- Provincial Key Laboratory of Oil&Gas Chemical Technology; College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing, Heilongjiang 163318 China
| |
Collapse
|
14
|
Wu W, Li H, Yang S, Lai X, Fan H, Cai H, Zeng X. Extraction resistance and mechanism of a macromolecular hindered phenol antioxidant in natural rubber. J Appl Polym Sci 2017. [DOI: 10.1002/app.44905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenjian Wu
- Department of Materials Science and Engineering; Dongguan University of Technology; Dongguan 523808 China
| | - Hongqiang Li
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Shuyan Yang
- Department of Materials Science and Engineering; Dongguan University of Technology; Dongguan 523808 China
| | - Xuejun Lai
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Hongbo Fan
- Department of Materials Science and Engineering; Dongguan University of Technology; Dongguan 523808 China
| | - Haining Cai
- Department of Materials Science and Engineering; Dongguan University of Technology; Dongguan 523808 China
| | - Xingrong Zeng
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| |
Collapse
|
15
|
Li C, Sun P, Guo S, Zhang Z, Wang J. Relationship between bridged groups and antioxidant activity for aliphatic diamine bridged hindered phenol in polyolefins. J Appl Polym Sci 2017. [DOI: 10.1002/app.45095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cuiqin Li
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing Heilongjiang 163318 China
| | - Peng Sun
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing Heilongjiang 163318 China
| | - Suyue Guo
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing Heilongjiang 163318 China
| | - Zhiqiu Zhang
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing Heilongjiang 163318 China
| | - Jun Wang
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering; Northeast Petroleum University; Daqing Heilongjiang 163318 China
| |
Collapse
|
16
|
Li H, Zhong Y, Wu W, Zhang L, Lai X, Zeng X. Phenolic antioxidants based on calixarene: Synthesis, structural characterization, and antioxidative properties in natural rubber. J Appl Polym Sci 2017. [DOI: 10.1002/app.45144] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hongqiang Li
- Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Yong Zhong
- Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Wenjian Wu
- Department of Materials Science and Engineering, College of Chemistry and Environmental Engineering; Dongguan University of Technology; Dongguan 523808 China
| | - Lin Zhang
- Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Xuejun Lai
- Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Xingrong Zeng
- Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| |
Collapse
|
17
|
Balzadeh Z, Arabi H. Novel phenolic antioxidant-functionalized dendritic polyethylene: Synthesis by tailor-made nickel(II) α-diimine-catalyzed copolymerization and its characteristics as non-releasing additive. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2016.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
18
|
Wang J, Wang Y, Song L, Wang H, Wang J, Li C. Synthesis and antioxidant capacity of a C12-naphthylamine antioxidant in polyethylene. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-1917-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
19
|
Manteghi A, Ahmadi S, Arabi H. Covalent immobilization of phenolic antioxidant on Ethylene copolymers: An efficient approach toward enhanced long-term stabilization of polypropylene. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.09.075] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
20
|
Thermo-oxidative stabilization of poly(lactic acid) with antioxidant intercalated layered double hydroxides. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.08.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
21
|
Manteghi A, Ahmadi S, Arabi H. Polyolefin elastomer grafted unsaturated hindered phenol esters: synthesis and antioxidant behavior. Des Monomers Polym 2016. [DOI: 10.1080/15685551.2016.1187442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Amin Manteghi
- Polymer Processing Department, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
| | - Shervin Ahmadi
- Polymer Processing Department, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
| | - Hassan Arabi
- Petrochemical Department, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
| |
Collapse
|
22
|
Xie H, Li H, Lai X, Wu W, Zhong Y, Zeng X. Well-defined Seven-arm Star Macromolecular Antioxidant based on β-Cyclodextrin for Stabilization of Natural Rubber. CHEM LETT 2016. [DOI: 10.1246/cl.151060] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hu Xie
- College of Materials Science and Engineering, South China University of Technology
| | - Hongqiang Li
- College of Materials Science and Engineering, South China University of Technology
| | - Xuejun Lai
- College of Materials Science and Engineering, South China University of Technology
| | - Wenjian Wu
- College of Chemistry and Environmental Engineering, Dongguan University of Technology
| | - Yong Zhong
- College of Materials Science and Engineering, South China University of Technology
| | - Xingrong Zeng
- College of Materials Science and Engineering, South China University of Technology
| |
Collapse
|
23
|
Beer S, Teasdale I, Brueggemann O. Macromolecular antioxidants via thiol-ene polyaddition and their synergistic effects. Polym Degrad Stab 2014. [DOI: 10.1016/j.polymdegradstab.2014.09.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
24
|
Aldemir H, Kohlhepp SV, Gulder T, Gulder TAM. Structure of a putative fluorinated natural product from Streptomyces sp. TC1. JOURNAL OF NATURAL PRODUCTS 2014; 77:2331-2334. [PMID: 25402430 DOI: 10.1021/np500643g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fluorine-containing natural products are extremely rare. The recent report on the isolation and biological activity of the bacterial secondary metabolite 3-(3,5-di-tert-butyl-4-fluorophenyl)propionic acid was thus highly remarkable. The compound contained the first aromatic fluorine substituent known to date in any natural product. The promise to discover an enzyme capable of aromatic fluorination in the producing strain Streptomyces sp. TC1 prompted our immediate interest. A close inspection of the originally reported analytical data of the fluoro metabolite revealed inconsistencies that triggered us to validate the reported structure. The results of these efforts are presented in this communication.
Collapse
Affiliation(s)
- Hülya Aldemir
- Biosystems Chemistry, Department Chemie and Center for Integrated Protein Science Munich (CIPSM), and ‡Department Chemie, Technische Universität München , Lichtenbergstraße 4, 85747 Garching, Germany
| | | | | | | |
Collapse
|
25
|
Ayoup MS, Cordes DB, Slawin AMZ, O'Hagan D. Total synthesis of a reported fluorometabolite from Streptomyces sp. TC1 indicates an incorrect assignment. The isolated compound did not contain fluorine. JOURNAL OF NATURAL PRODUCTS 2014; 77:1249-1251. [PMID: 24848452 DOI: 10.1021/np500260z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
3,5-Di-tert-butyl-4-fluorophenylpropionic acid (1) was recently reported as a natural product from Streptomyces sp. TC1. This was a notable disclosure because fluorinated natural products are exceedingly rare, and in this case it suggested that the bacterium had the capacity to mediate an enzymatic aryl fluorination reaction. However, a synthesis of the putative metabolite 1 demonstrates that the spectroscopic data are inconsistent with the proposed structure. There is no evidence that the isolated compound contained a fluorine atom.
Collapse
Affiliation(s)
- Mohammed Salah Ayoup
- School of Chemistry, University of St Andrews , North Haugh, St Andrews, KY16 9ST, U.K
| | | | | | | |
Collapse
|
26
|
Kothari AV, Makwana UC, Desai BK, Gupta VK. Stabilized polypropylene synthesis using supported titanium catalyst system in presence of phenolic compounds. Des Monomers Polym 2014. [DOI: 10.1080/15685551.2014.907611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- Ajay Vinodlal Kothari
- Reliance Technology Group, Reliance Industries Ltd., Hazira Complex, Surat, Gujarat 394 510, India
| | - Umesh Chhaganlal Makwana
- Reliance Technology Group, Reliance Industries Ltd., Hazira Complex, Surat, Gujarat 394 510, India
| | - Bhavesh Kiritbhai Desai
- Reliance Technology Group, Reliance Industries Ltd., Hazira Complex, Surat, Gujarat 394 510, India
| | - Virendra Kumar Gupta
- Reliance Technology Group, Reliance Industries Ltd., Hazira Complex, Surat, Gujarat 394 510, India
| |
Collapse
|
27
|
Feng Y, Jiang Y, Huang Q, Chen S, Zhang F, Tang P, Li D. High Antioxidative Performance of Layered Double Hydroxides/Polypropylene Composite with Intercalation of Low-Molecular-Weight Phenolic Antioxidant. Ind Eng Chem Res 2014. [DOI: 10.1021/ie403643v] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yongjun Feng
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yu Jiang
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Qiang Huang
- Synthetic Resin Laboratory, Petrochemical Research Institute, PetroChina, Jia No.
25, Beiwucun Road, 100195, Beijing, China
| | - Shangtao Chen
- Synthetic Resin Laboratory, Petrochemical Research Institute, PetroChina, Jia No.
25, Beiwucun Road, 100195, Beijing, China
| | - Fengbo Zhang
- Synthetic Resin Laboratory, Petrochemical Research Institute, PetroChina, Jia No.
25, Beiwucun Road, 100195, Beijing, China
| | - Pinggui Tang
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Dianqing Li
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| |
Collapse
|