The Effect of the Synthetic Procedure of Acrylonitrile-Acrylic Acid Copolymers on Rheological Properties of Solutions and Features of Fiber Spinning.
| Title: | The Effect of the Synthetic Procedure of Acrylonitrile-Acrylic Acid Copolymers on Rheological Properties of Solutions and Features of Fiber Spinning. |
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| Authors: | Skvortsov IY; A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Av., 29, 119991 Moscow, Russia.; Chernikova EV; A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Av., 29, 119991 Moscow, Russia.; Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskiye Gory, 119991 Moscow, Russia.; Kulichikhin VG; A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Av., 29, 119991 Moscow, Russia.; Varfolomeeva LA; A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Av., 29, 119991 Moscow, Russia.; Kuzin MS; A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Av., 29, 119991 Moscow, Russia.; Toms RV; M.V. Lomonosov Institute of Fine Chemical Technologies, Russian Technological University, Vernadsky Av., 86, 119991 Moscow, Russia.; Prokopov NI; M.V. Lomonosov Institute of Fine Chemical Technologies, Russian Technological University, Vernadsky Av., 86, 119991 Moscow, Russia. |
| Source: | Materials (Basel, Switzerland) [Materials (Basel)] 2020 Aug 05; Vol. 13 (16). Date of Electronic Publication: 2020 Aug 05. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: MDPI Country of Publication: Switzerland NLM ID: 101555929 Publication Model: Electronic Cited Medium: Print ISSN: 1996-1944 (Print) Linking ISSN: 19961944 NLM ISO Abbreviation: Materials (Basel) Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Publication: May 2010- : Basel, Switzerland : MDPI; Original Publication: Basel, Switzerland : Molecular Diversity Preservation International, 2008-2010. |
| Abstract: | The influence of introducing acrylic acid (AA) into the reaction mixture with acrylonitrile at the synthesis of copolymers by free-radical polymerization (FRP) and radical polymerization with reversible addition-fragmentation chain transfer (RAFT) on the rheological properties of their solutions in dimethyl sulfoxide, as well as on the capability to spin fibers by the mechanotropic method, is analyzed. The influence of AA dosing conditions on the rheological properties of the solutions in the concentration range above the crossover point was not revealed. In the case of RAFT synthesis, the rheological properties differ distinctively in the high concentration region that is expressed by unusual viscoelastic characteristics. Dilute solution viscometry revealed the influence of the comonomer loading order on the interaction intensity of the copolymer macromolecules with a solvent, which is more pronounced for samples synthesized by FRP and can be associated with the copolymers' molecular structure. Fiber spinning from solutions of polyacrylonitrile and its copolymers (PAN) synthesized by the RAFT method was not able to achieve a high degree of orientation drawing, while for polymers with a wider molecular weight distribution synthesized by FRP, it was possible to realize large stretches, which led to high-quality fibers with strength values up to 640 MPa and elongation at a break of 20%. |
| References: | Polymers (Basel). 2018 Aug 02;10(8):. (PMID: 30960781); Materials (Basel). 2019 Oct 25;12(21):. (PMID: 31731389) |
| Grant Information: | 18-29-17004-mk Russian Foundation for Basic Research; 1 United States CX CSRD VA |
| Contributed Indexing: | Keywords: acrylic acid; acrylonitrile; fiber spinning; fibers; radical polymerization; reversible addition–fragmentation chain transfer; rheology; solutions |
| Entry Date(s): | Date Created: 20200809 Latest Revision: 20200928 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC7475841 |
| DOI: | 10.3390/ma13163454 |
| PMID: | 32764383 |
| Database: | MEDLINE |
Journal Article