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Cui Y, Hua X, Liu LZ, Li S, Shi Y. Evaluating polyacrylonitrile precursor structure effects on carbon fiber production. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04451-4] [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]
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2
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Caro-Briones R, García-Pérez BE, Martín-Martínez ES, Báez-Medina H, Cruz-Reyes IG, del Río JM, Martínez-Gutiérrez H, Corea M. Influence of Carbon Nanotubes Concentration on Mechanical and Electrical Properties of Poly(styrene-co-acrylonitrile) Composite Yarns Electrospun. Polymers (Basel) 2021; 13:polym13213655. [PMID: 34771212 PMCID: PMC8587041 DOI: 10.3390/polym13213655] [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: 10/07/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 11/16/2022] Open
Abstract
In this work, the influence of carbon nanotubes (CNTs) content on the mechanical and electrical properties of four series of polymeric matrix were made and their cytotoxicity on cells was evaluated to consider their use as a possible artificial muscle. For that, polymer composite yarns were electrospun using polymeric solutions at 10 wt.%. of poly(styrene-co-acrylonitrile) P(S:AN) and P(S:AN-acrylic acid) P(S:AN-AA) at several monomeric concentrations, namely 0:100, 20:80, 40:60, 50:50 (wt.%:wt.%), and 1 wt.% of AA. Carbon nanotubes (CNTs) were added to the polymeric solutions at two concentrations, 0.5 and 1.0 wt.%. PMCs yarns were collected using a blade collector. Mechanical and electrical properties of polymeric yarns indicated a dependence of CNTs content into yarns. Three areas could be found in fibers: CNTs bundles zones, distributed and aligned CNTs zones, and polymer-only zones. PMCs yarns with 0.5 wt.% CNTs concentration were found with a homogenous nanotube dispersion and axial alignment in polymeric yarn, ensuring load transfer on the polymeric matrix to CNTs, increasing the elastic modulus up to 27 MPa, and a maximum electrical current of 1.8 mA due to a good polymer–nanotube interaction.
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Affiliation(s)
- Rubén Caro-Briones
- Escuela Superior de Ingeniería Química e Industrias Extractivas, Instituto Politécnico Nacional, Av. Luis Enrique Erro S/N, Unidad Profesional Adolfo López Mateos, Zacatenco, Alcaldía Gustavo A. Madero, Ciudad de México C.P. 07738, Mexico;
| | - Blanca Estela García-Pérez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Lázaro Cárdenas Prolongación de Carpio y Plan de Ayala S/N Col. Santo Tomas, Alcaldía Miguel Hidalgo, Ciudad de México C.P. 11340, Mexico; (B.E.G.-P.); (I.G.C.-R.)
| | - Eduardo San Martín-Martínez
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Instituto Politécnico Nacional, Calzada Legaria No. 694 Col. Irrigación, Alcaldía Miguel Hidalgo, Ciudad de México C.P. 11500, Mexico;
| | - Héctor Báez-Medina
- Centro de Investigación en Computación, Instituto Politécnico Nacional, Av. Juan de Dios Bátiz, Esq. Miguel Othón de Mendizábal, Col. Nueva Industrial Vallejo, Alcaldía Gustavo A. Madero, Ciudad de México C.P. 07738, Mexico;
| | - Irlanda Grisel Cruz-Reyes
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Lázaro Cárdenas Prolongación de Carpio y Plan de Ayala S/N Col. Santo Tomas, Alcaldía Miguel Hidalgo, Ciudad de México C.P. 11340, Mexico; (B.E.G.-P.); (I.G.C.-R.)
| | - José Manuel del Río
- Departamento en Ingeniería en Metalurgia y Materiales, ESIQIE, Instituto Politécnico Nacional. Av. Luis Enrique Erro S/N, Unidad Profesional Adolfo López Mateos, Zacatenco, Alcaldía Gustavo A. Madero, Ciudad de México C.P. 07738, Mexico;
| | - Hugo Martínez-Gutiérrez
- Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional, Av. Luis Enrique Erro S/N, Unidad Profesional Adolfo López Mateos, Zacatenco, Alcaldía Gustavo A. Madero, Ciudad de México C.P. 07738, Mexico
- Correspondence: (H.M.-G.); or (M.C.)
| | - Mónica Corea
- Escuela Superior de Ingeniería Química e Industrias Extractivas, Instituto Politécnico Nacional, Av. Luis Enrique Erro S/N, Unidad Profesional Adolfo López Mateos, Zacatenco, Alcaldía Gustavo A. Madero, Ciudad de México C.P. 07738, Mexico;
- Correspondence: (H.M.-G.); or (M.C.)
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3
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New insights into orientation differences between skin and core regions of polyacrylonitrile fibers during pre-stabilization with the stretching process. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.123043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Blivi AS, Bedoui F, Weigand S, Kondo D. Multiscale analysis of nanoparticles size effects on thermal, elastic, and viscoelastic properties of nano‐reinforced polymers. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25413] [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)
- Adoté S. Blivi
- Laboratoire Roberval, UMR‐CNRS 7037Sorbonne Universités, Université de Technologie de Compiègne Compiègne France
| | - Fahmi Bedoui
- Laboratoire Roberval, UMR‐CNRS 7037Sorbonne Universités, Université de Technologie de Compiègne Compiègne France
| | - Steven Weigand
- Member of the DND‐CAT Synchrotron Research Center, ANLNorthwestern University Argonne Illinois USA
| | - Djimédo Kondo
- IJLRDA, UMR‐CNRS 7190Sorbonne Universités, Université Pierre et Marie Curie Paris France
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Heo SJ, Kim KH, Han B, Chae HG, Lee SG. Defect structure evolution of polyacrylonitrile and single wall carbon nanotube nanocomposites: a molecular dynamics simulation approach. Sci Rep 2020; 10:11816. [PMID: 32678215 PMCID: PMC7366919 DOI: 10.1038/s41598-020-68812-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 05/11/2020] [Indexed: 12/03/2022] Open
Abstract
In this study, molecular dynamics simulations were performed to understand the defect structure development of polyacrylonitrile-single wall carbon nanotube (PAN-SWNT) nanocomposites. Three different models (control PAN, PAN-SWNT(5,5), and PAN-SWNT(10,10)) with a SWNT concentration of 5 wt% for the nanocomposites were tested to study under large extensional deformation to the strain of 100% to study the corresponding mechanical properties. Upon deformation, the higher stress was observed in both nanocomposite systems as compared to the control PAN, indicating effective reinforcement. The higher Young’s (4.76 ± 0.24 GPa) and bulk (4.19 ± 0.25 GPa) moduli were observed when the smaller-diameter SWNT(5,5) was used, suggesting that SWNT(5,5) resists stress better. The void structure formation was clearly observed in PAN-SWNT(10,10), while the nanocomposite with smaller diameter SWNT(5,5) did not show the development of such a defect structure. In addition, the voids at the end of SWNT(10,10) became larger in the drawing direction with increasing deformation.
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Affiliation(s)
- So Jeong Heo
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology, 50 Unist-gil, Ulsan, 44919, Republic of Korea.,Department of Organic Material Science and Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Kwang Ho Kim
- School of Materials Science and Engineering, Pusan National University, 2, Busandaehak-ro 63 Beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Byungchan Han
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Han Gi Chae
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology, 50 Unist-gil, Ulsan, 44919, Republic of Korea.
| | - Seung Geol Lee
- Department of Organic Material Science and Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
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Affiliation(s)
- Ayesha Kausar
- School of Natural Sciences, National University of Sciences and Technology (NUST), Islamabad, Pakistan
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Zhou Y, Sha Y, Liu W, Gao T, Yao Z, Zhang Y, Cao W. Hierarchical radial structure of polyacrylonitrile precursor formed during the wet-spinning process. RSC Adv 2019; 9:17051-17056. [PMID: 35519895 PMCID: PMC9064467 DOI: 10.1039/c9ra02125f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 05/22/2019] [Indexed: 11/24/2022] Open
Abstract
Electron probe micro-analysis (EPMA), micro-beam wide angle X-ray diffraction (Micro-beam WAXD), micro-Raman and nano-infrared (nano-IR) spectroscopy were performed to characterize the hierarchical radial structure within polyacrylonitrile (PAN) fibre which was obtained by the wet-spinning method, including morphology, aggregation structure and molecular chain conformation. The results indicated that along the radial direction of the PAN fibre, the skin layer reflects denser morphology compared to the core region. The crystallinity, d-spacing of the (100) Miller plane and crystalline orientation in PAN fibres were gradually decreased from the skin layer to the central part, while the crystalline size shows opposite distribution tendency which was affected by the diffusion depending on the coagulation environment. As to the molecular chain structure, PAN chains tend to keep the helical conformation rather than planar zigzag conformation and packed more orderly in the skin layer of fibres. The study focused on the multiscale to clarify the radial structure in PAN precursors.![]()
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Affiliation(s)
- Yiran Zhou
- The Key Laboratory of Education Ministry on Carbon Fibre and Functional Polymer
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Materials
| | - Yang Sha
- The Key Laboratory of Education Ministry on Carbon Fibre and Functional Polymer
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Wei Liu
- The Key Laboratory of Education Ministry on Carbon Fibre and Functional Polymer
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Teng Gao
- The Key Laboratory of Education Ministry on Carbon Fibre and Functional Polymer
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Zhuwei Yao
- The Key Laboratory of Education Ministry on Carbon Fibre and Functional Polymer
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Yaxin Zhang
- The Key Laboratory of Education Ministry on Carbon Fibre and Functional Polymer
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Weiyu Cao
- The Key Laboratory of Education Ministry on Carbon Fibre and Functional Polymer
- Beijing University of Chemical Technology
- Beijing 100029
- China
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Zhang H, Quan L, Shi F, Li C, Liu H, Xu L. Rheological Behavior of Amino-Functionalized Multi-Walled Carbon Nanotube/Polyacrylonitrile Concentrated Solutions and Crystal Structure of Composite Fibers. Polymers (Basel) 2018; 10:E186. [PMID: 30966222 PMCID: PMC6414974 DOI: 10.3390/polym10020186] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/09/2018] [Accepted: 02/09/2018] [Indexed: 11/18/2022] Open
Abstract
The rheological behavior of amino-functionalized multi-walled carbon nanotubes (amino-CNTs)/polyacrylonitrile (PAN) concentrated solutions in the dimethyl sulphoxide solvent and the effects of the amino-CNTs on the PAN precursor fibers by wet-spinning method were investigated. The amino-CNT/PAN concentrated solutions prepared by in situ solution polymerization with homogeneous dispersion of amino-CNTs have higher complex viscosity, storage modulus and loss modulus as compared to the control PAN concentrated solutions containing 22% PAN polymer by mass. The composite fibers with amino-CNTs of 1 wt % have lower degree of crystallization, crystal size and crystal region orientation compared to the control PAN precursor fibers. However, the amino-CNT/PAN composite fibers with diameter of about 10.5 μm exhibit higher mechanical properties than the control PAN precursor fibers with diameter of about 8.0 μm. Differential scanning calorimetry analysis demonstrated that the cyclization reaction in composite fibers have broad exothermic temperature range and low exothermic rate. These results indicate that the addition of amino-CNTs into PAN precursor fibers is beneficial to controlling the process of thermal stabilization and obtaining the higher performance of composite fibers.
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Affiliation(s)
- Hailong Zhang
- School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Ling Quan
- School of Electric Power, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.
| | - Fengjun Shi
- School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.
| | - Changqing Li
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Huanqiang Liu
- School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.
| | - Lianghua Xu
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China.
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Li X, Qin A, Zhao X, Liu D, Wang H, He C. Drawing dependent structures, mechanical properties and cyclization behaviors of polyacrylonitrile and polyacrylonitrile/carbon nanotube composite fibers prepared by plasticized spinning. Phys Chem Chem Phys 2015; 17:21856-65. [PMID: 26235219 DOI: 10.1039/c5cp02498f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Drawing to change the structural properties and cyclization behaviors of the polyacrylonitrile (PAN) chains in crystalline and amorphous regions is carried out on PAN and PAN/carbon nanotube (CNT) composite fibers. Various characterization methods including Fourier transform infrared spectroscopy, differential scanning calorimetry, X-ray diffraction and thermal gravimetric analysis are used to monitor the structural evolution and cyclization behaviors of the fibers. With an increase of the draw ratio during the plasticized spinning process, the structural parameters of the fibers, i.e. crystallinity and planar zigzag conformation, are decreased at first, and then increased, which are associated with the heat exchange rate and the oriented-crystallization rate. A possible mechanism for plasticized spinning is proposed to explain the changing trends of crystallinity and planar zigzag conformation. PAN and PAN/CNT fibers exhibit various cyclization behaviors induced by drawing, e.g., the initiation temperature for the cyclization (Ti) of PAN fibers is increased with increasing draw ratio, while Ti of PAN/CNT fibers is decreased. Drawing also facilitates cyclization and lowers the percentage of β-amino nitrile for PAN/CNT fibers during the stabilization.
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Affiliation(s)
- Xiang Li
- State Key Lab for Modification of Chemical Fibers and Polymer Materials College of Material Science & Engineering Donghua University, Shanghai 201620, P. R. China.
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10
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Wu S, Huang G, Wu J, Tian F, Li H. Structural evolution of OBC/carbon nanotube bundle nanocomposites under uniaxial deformation. RSC Adv 2015. [DOI: 10.1039/c5ra02942b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A regulated morphology of multi-walled CNT bundles in an olefin block copolymer matrix is achieved via solution blending after sonication. We observed an unexpected inverse evolution trend of long period in nanocomposites compared to that in neat matrix.
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Affiliation(s)
- Siduo Wu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- People's Republic of China
| | - Guangsu Huang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- People's Republic of China
| | - Jinrong Wu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- People's Republic of China
| | - Feng Tian
- Shanghai Institute of Applied Physics
- Chinese Academy of Science
- Shanghai 201204
- China
| | - Hui Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- People's Republic of China
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11
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Gong Y, Du R, Mo G, Xing X, Lü CX, Wu Z. In-situ microstructural changes of polyacrylonitrile based fibers with stretching deformation. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.06.073] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Newcomb BA, Chae HG, Gulgunje PV, Gupta K, Liu Y, Tsentalovich DE, Pasquali M, Kumar S. Stress transfer in polyacrylonitrile/carbon nanotube composite fibers. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.04.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Palardy G, Trudel-Boucher D, Hubert P. Investigation of a postprocessing method to tailor the mechanical properties of carbon nanotube/polyamide fibers. J Appl Polym Sci 2013. [DOI: 10.1002/app.39713] [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)
- Genevieve Palardy
- Department of Mechanical Engineering; McGill University; 817 Sherbrooke Street West; Montreal; Quebec; H3A 0C3; Canada
| | - David Trudel-Boucher
- Industrial Materials Institute, National Research Council Canada; 75 de Mortagne; Boucherville; Quebec; J4B 6Y4; Canada
| | - Pascal Hubert
- Department of Mechanical Engineering; McGill University; 817 Sherbrooke Street West; Montreal; Quebec; H3A 0C3; Canada
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Ning N, Fu S, Zhang W, Chen F, Wang K, Deng H, Zhang Q, Fu Q. Realizing the enhancement of interfacial interaction in semicrystalline polymer/filler composites via interfacial crystallization. Prog Polym Sci 2012. [DOI: 10.1016/j.progpolymsci.2011.12.005] [Citation(s) in RCA: 308] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liu J, Lian F, Ma ZK, Liang JY. Effects of deformation-induced orientation on cyclization and oxidation of polyacrylonitrile fibers during stabilization process. CHINESE JOURNAL OF POLYMER SCIENCE 2012. [DOI: 10.1007/s10118-012-1165-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Mazinani S, Ajji A, Dubois C. Fundamental study of crystallization, orientation, and electrical conductivity of electrospun PET/carbon nanotube nanofibers. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/polb.22085] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Minus ML, Chae HG, Kumar S. Interfacial Crystallization in Gel-Spun Poly(vinyl alcohol)/Single-Wall Carbon Nanotube Composite Fibers. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200900223] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang W, Murthy NS, Chae HG, Kumar S. Small-angle X-ray scattering investigation of carbon nanotube-reinforced polyacrylonitrile fibers during deformation. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/polb.21836] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Nie HL, Ma ZH, Fan ZX, Branford-White CJ, Ning X, Zhu LM, Han J. Polyacrylonitrile fibers efficiently loaded with tamoxifen citrate using wet-spinning from co-dissolving solution. Int J Pharm 2009; 373:4-9. [PMID: 19429282 DOI: 10.1016/j.ijpharm.2009.03.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2008] [Revised: 03/10/2009] [Accepted: 03/16/2009] [Indexed: 11/29/2022]
Abstract
Tamoxifen citrate (TAM)-loaded polyacrylonitrile (PAN) fibers were prepared using an improved wet-spinning technique. TAM was used as a model drug to evaluate the potential application of the loaded fiber system for drug delivery. PAN was first homogeneously dissolved in the N,N-dimethylacetamide (DMAc) solution containing TAM and then the co-dissolving solution was solidified to prepare the fibers using a wet-spinning method. Chemical, morphological and mechanical property characterizations were carried out, as well as the studies of the drug release properties. TAM was successfully encapsulated into a monofilament fiber, and this system was stable in terms of high loading capacity and effectiveness in release. The diameter of drug-loaded fiber was in the range of 40-60 microm. The best values of the tensile strength at 2.968 cN/dtex and breaking elongation at 14.9% of drug-loaded fibers were obtained when the drug loading content was 23.1 wt.%. These characteristics were suitable for the weaving process. The in vitro release experiment indicated that constant drug release from the fiber was observed for a long duration of time. Kinetic studies demonstrated that the system followed the Higuchi kinetics. These findings demonstrate that controlled release of drugs from PAN fibers could be potentially useful in drug delivery systems.
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Affiliation(s)
- Hua-Li Nie
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
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