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Title: Synthesis, spinning, and properties of very high molecular weight poly(acrylonitrile-co-methyl acrylate) for high performance precursors for carbon fiber

Journal Article · · Polymer
 [1];  [1];  [1];  [2];  [3];  [3];  [3]
  1. University of Kentucky, Lexington, KY (United States)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  3. Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA (United States)
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In this paper, synthesis of very high molecular weight (VHMW) polyacrylonitrile-co-methyl acrylate(PAN-co-MA) polymers with weight average molecular weights of at least 1.7 million g/mole were repeatedly achieved on a laboratory scale using emulsion polymerization. Furthermore, the development of a hybrid dry-jet gel solution spinning technique for the VHMW PAN-co-MA enabled continuous spinning of 100 filament count tows, 100s of meters in length. Single filaments were analyzed and tested for tensile performance. Experimentally, the hybrid spinning method coupled with VHMW polymers produced precursor fibers with excellent tensile properties, averaging 954 MPa in strength and 15.9 GPa in elastic modulus (N = 296), with small filament diameters (5 μm). Results indicate a strong correlation between decreasing filament diameter, facilitated by high molecular weight polymer, and exponentially increasing tensile properties, using a hybrid dry-jet gel spinning process.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Defense Advanced Research Projects Agency (DARPA); National Science Foundation (NSF); USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1570919
Journal Information:
Polymer, Journal Name: Polymer Journal Issue: 25 Vol. 55; ISSN 0032-3861
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (28)

Effect of air-gap distance on the morphology and thermal properties of polyethersulfone hollow fibers journal November 1997
Development of high ductility and tensile properties by a two-stage draw of poly(acrylonitrile): Effect of molecular weight journal March 1998
The mechanism and characterstics of dry-jet wet-spinning of acrylic fibers journal January 1986
Structure development during dry-jet-wet spinning of acrylonitrile/vinyl acids and acrylonitrile/methyl acrylate copolymers journal August 2002
The effect of molecular weight on the cross section and properties of polyacrylonitrile precursor and resulting carbon fiber journal June 1991
Effects of different coagulation conditions on polyacrylonitrile fibers wet spun in a system of dimethylsulphoxide and water journal January 2007
Investigation the jet stretch in PAN fiber dry-jet wet spinning for PAN-DMSO-H2O system journal December 2009
Gel spinning of polyacrylonitrile fibers with medium molecular weight journal November 2010
Molecular weight characterization of soluble high performance polyimides. 1. Polymer-solvent-stationary phase interactions in size exclusion chromatography journal July 1995
Control of cross-section shape for polyacrylonitrile fibre during wet-spinning journal January 1991
Ultra-high-strength polyethylene filaments by solution spinning/drawing journal February 1980
The chemistry of carbon fiber formation from polyacrylonitrile book January 2005
Effect of coagulation temperature on the properties of poly(acrylonitrile- itaconic acid) fibers in wet spinning journal March 2007
Microstructure of fibrils separated from polyacrylonitrile fibers by ultrasonic etching journal June 2010
Advances in the development of high-performance carbon fibres from pan precursor journal January 1994
Evolution of structure and properties of PAN precursors during their conversion to carbon fibers journal January 2003
Morphology control of polysulfone hollow fiber membranes via water vapor induced phase separation journal July 2006
A review of heat treatment on polyacrylonitrile fiber journal August 2007
Gel spinning of PVA/SWNT composite fiber journal December 2004
Development of oriented morphology and tensile properties upon superdawing of solution-spun fibers of ultra-high molecular weight poly(acrylonitrile) journal May 2006
Thickness and Air Gap Dependence of Macrovoid Evolution in Phase-Inversion Asymmetric Hollow Fiber Membranes journal September 2006
Further Studies on the Melt Viscosity of Polyisobutylene. journal February 1951
Effect of the Molecular Weight of Fibre-Forming Polymers on the Mechanical Properties of Polymer Fibres (Review) journal January 2002
A Novel Method for Investigating the Structural Uniformity of Polyacrylonitrile Nascent Fibers journal October 2008
High-Performance Acrylic Fibers journal February 1996
The Phenomena of Rupture and Flow in Solids journal January 1921
The Influence of Coagulation Variables on the Structure and Physical Properties of an Acrylic Fiber journal January 1963
Evaluation of carbon fiber surface treated by chemical and cold plasma processes journal September 2005

Cited By (1)

Structural Transformation of Polyacrylonitrile (PAN) Fibers during Rapid Thermal Pretreatment in Nitrogen Atmosphere journal January 2020

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Related Subjects

36 MATERIALS SCIENCE
PAN polymer synthesis
polyacrylonitrile fiber
solution spinning