Accession Number : ADA141923

Title :   Uniaxial Draw of Poly(Ethylene Oxide) by Solid State Extrusion.

Descriptive Note : Interim technical rept.,

Corporate Author : MASSACHUSETTS UNIV AMHERST DEPT OF POLYMER SCIENCE AND ENGINEERING

Personal Author(s) : Kim,B S ; Porter,R S

PDF Url : ADA141923

Report Date : 15 Aug 1983

Pagination or Media Count : 22

Abstract : Ultradrawn filaments of poly (ethylene oxide) (PEO) have been prepared by a solid-state coextrusion in an Instron capillary rheometer. Two different molecular weights, 300,000 and 4,000,000 were evaluated. Properties have been examined as a function of uniaxial draw ratio. The drawn filaments of PEO exhibit extremes of melting point, percent crystallinity, birefringence, and tensile modulus. Features of a PEO filament with a draw ratio of 32 are a 72 deg C DSC melting point and a crystallinity of 94.0%, both measured at a scan 2.5 deg C/min. The corresponding birefringence is 0.035 and a Young's modulus of 3.5 GPa. (Author)

Descriptors :   *Polyethylene, *Drawing(Forming), *Extrusion, *Oxides, *Filaments, Molecular weight, Crystals, Birefringence, Modulus of elasticity, Tensile properties, Melting point, Orientation(Direction)

Subject Categories : Plastics
      Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE