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Skvortsov IY, Maksimov NM, Kuzin MS, Toms RV, Varfolomeeva LA, Chernikova EV, Kulichikhin VG. Influence of Alkyl Acrylate Nature on Rheological Properties of Polyacrylonitrile Terpolymers Solutions, Spinnability and Mechanical Characteristics of Fibers. MATERIALS (BASEL, SWITZERLAND) 2022; 16:ma16010107. [PMID: 36614445 PMCID: PMC9821233 DOI: 10.3390/ma16010107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/17/2022] [Accepted: 12/21/2022] [Indexed: 06/12/2023]
Abstract
The influence of alkyl acrylate comonomers in the rank of methyl- (MA), butyl- (BA), ethylhexyl- (EGA), and lauryl- (LA) in ternary copolymers based on acrylonitrile, alkyl acrylate and acrylamide (PAN-alkyl acrylate) on their solutions rheological behavior in dimethyl sulfoxide (DMSO), and mechanical properties of the spun fibers have been investigated. To reveal the role of molecular weight, two series of copolymers with molecular weights of ~50 and 150 kg/mol have been studied. It was shown that the nature of the alkyl acrylate does not significantly affect the rheological behavior of their solutions regardless of the length of the alkyl substituent and the content of the alkyl acrylate in copolymers. An exception is the high-molecular PAN-LA, which is characterized by a non-Newtonian behavior at lower concentrations. Two series of fibers were spun from the characterized ranks of low and high-molecular-weight copolymer solutions. For all copolymers, a 2.5-5-fold increase in the strength and elastic modulus of the fiber was found with an increase in Mw. It has been shown that PAN-MA and PAN-LA fibers have a tensile strength of 800 MPa that is 1.5-3 times higher than that of other copolymers spun in the same conditions.
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Affiliation(s)
- Ivan Yu. Skvortsov
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
| | - Nikita M. Maksimov
- Faculty of Materials Sciences, Lomonosov Moscow State University, Leninskiye Gory, 1, Building 73, 119991 Moscow, Russia
| | - Mikhail S. Kuzin
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
| | - Roman V. Toms
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
- Institute of Fine Chemical Technologies Named after M.V. Lomonosov, MIREA–Russian Technological University, Vernadsky Ave., 86, 119571 Moscow, Russia
| | - Lydia A. Varfolomeeva
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
| | - Elena V. Chernikova
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskiye Gory, 1, Building 3, 119991 Moscow, Russia
| | - Valery G. Kulichikhin
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
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Melt-Spinnable Polyacrylonitrile-An Alternative Carbon Fiber Precursor. Polymers (Basel) 2022; 14:polym14235222. [PMID: 36501614 PMCID: PMC9738362 DOI: 10.3390/polym14235222] [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: 11/09/2022] [Revised: 11/24/2022] [Accepted: 11/26/2022] [Indexed: 12/05/2022] Open
Abstract
The review summarizes recent advances in the production of carbon fiber precursors based on melt-spun acrylonitrile copolymers. Approaches to decrease the melting point of polyacrylonitrile and acrylonitrile copolymers are analyzed, including copolymerization with inert comonomers, plasticization by various solvents and additives, among them the eco-friendly ways to use the carbon dioxide and ionic liquids. The methods for preliminary modification of precursors that provides the thermal oxidative stabilization of the fibers without their melting and the reduction in the stabilization duration without the loss of the mechanical characteristics of the fibers are discussed. Special attention is paid to different ways of crosslinking by irradiation with different sources. Examples of the carbon fibers preparation from melt-processable acrylonitrile copolymers are considered in detail. A patent search was carried out and the information on the methods for producing carbon fibers from precursors based on melt-spun acrylonitrile copolymers are summarized.
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Maksimov NM, Toms RV, Balashov MS, Gerval’d AY, Prokopov NI, Plutalova AV, Kuzin MS, Skvortsov IY, Kulichikhin VG, Chernikova EV. Novel Potential Precursor of Carbon Fiber Based on Copolymers of Acrylonitrile, Acrylamide, and Alkyl Acrylates. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422700324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Toms RV, Gervald AY, Prokopov NI, Osipova NI, Plutalova AV, Chernikova EV. Thermal Behavior of Poly(acrylonitrile-co-1-vinyl imidazole) During Stabilization. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422700099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tsarevsky NV. Special Issue: Functional Polymers and Composites: From Synthesis to Applications (Dedicated to the 80th Anniversary of Professor George S. Georgiev). POLYM INT 2022. [DOI: 10.1002/pi.6425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Nicolay V. Tsarevsky
- Department of Chemistry Southern Methodist University 3215 Daniel Avenue Dallas Texas 75275 USA
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