Some Specifics of Defect-Free Poly-(o-aminophenylene)naphthoylenimide Fibers Preparation by Wet Spinning.
| Title: | Some Specifics of Defect-Free Poly-(o-aminophenylene)naphthoylenimide Fibers Preparation by Wet Spinning. |
|---|---|
| Authors: | Skvortsov IY; A.V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, Leninsky Av. 29, 119991 Moscow, Russia.; Kulichikhin VG; A.V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, Leninsky Av. 29, 119991 Moscow, Russia.; Ponomarev II; A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, 119991 Moscow, Russia.; Varfolomeeva LA; A.V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, Leninsky Av. 29, 119991 Moscow, Russia.; Kuzin MS; A.V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, Leninsky Av. 29, 119991 Moscow, Russia.; Razorenov DY; A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, 119991 Moscow, Russia.; Skupov KM; A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, 119991 Moscow, Russia. |
| Source: | Materials (Basel, Switzerland) [Materials (Basel)] 2022 Jan 21; Vol. 15 (3). Date of Electronic Publication: 2022 Jan 21. |
| 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: | A series of model experiments were carried out on drops of poly-(o-aminophenylene)naphthoylenimide (PANI-O) solutions in N-methyl-2-pyrrolidone (NMP) surrounded by a coagulant of different compositions as starting points of defect-free fibers spinning by the wet method. An influence of compositions of dopes and multicomponent coagulants on the diffusion kinetics and drop morphology during coagulation has been investigated. It is shown that the defining parameters of the coagulation process are viscoelastic properties of the polymer solution and the diffusion activity of the coagulant, meaning not only the rate of coagulation but also the presence/absence of macro defects in the resulting fiber. The optimal morphology of as-spun fibers is obtained by coagulation of solution in a three-component mixture containing solvent and two precipitants of different activity (water and ethanol). The chosen coagulating mixture was used for the fiber spinning of PANI-O with different molecular weights dopes, and fibers with sufficiently high strength (~250 MPa), moduli (~2.1 MPa), and elongation at break (50%) were obtained. |
| References: | Materials (Basel). 2019 Oct 25;12(21):. (PMID: 31731389); Polymers (Basel). 2020 Apr 04;12(4):. (PMID: 32260347); Polymers (Basel). 2020 Oct 23;12(11):. (PMID: 33114143); Carbohydr Polym. 2021 Feb 15;254:117472. (PMID: 33357926) |
| Grant Information: | # 18-29-17062 mk Russian Foundation for Basic Research; Center for Molecular Composition Studies A. N. Nesmeyanov Institute of Organoelement Compounds; Analytical center of deep oil processing and petrochemistry A.V. Topchiev Institute of Petrochemical Synthesis |
| Contributed Indexing: | Keywords: coagulation; fibers; heterocyclic polyarylenes; poly-(o-aminophenylene)naphthoylenimide; polymer solution rheology; wet spinning |
| Entry Date(s): | Date Created: 20220215 Latest Revision: 20220219 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC8836713 |
| DOI: | 10.3390/ma15030808 |
| PMID: | 35160753 |
| Database: | MEDLINE |
Journal Article