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Orientation in poly(ethylene terephthalate) drawn by solid state coextrusion

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Abstract

The development of uniaxial orientation by solid-state extrusion at 60 to 90° C has been evaluated for both the amorphous and crystalline components of a polyethylene terephthalate). Analyses involved X-ray diffraction, birefringence and visable dichroism. The dichroism was evalulated from a host dye molecule. The initial PET film for draw was amorphous and isotropic. Orientation functions for the amorphous and the developed crystalline phases are reported at a series of draw ratios up to 4.4.

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Author notes

  1. Tong Sun

    Present address: East China Institute of Textile Science and Technology, Shanghai, People's Republic of China

  2. C. Richard Desper

    Present address: US Army Materials and Mechanics Research Center, Polymer Research Group, Building 39, 02172, Watertown, Massachusetts, USA

Authors and Affiliations

  1. Polymer Science and Engineering Department, Materials Research Laboratory, University of Massachusetts, 01003, Amherst, Massachusetts, USA

    Tong Sun, C. Richard Desper & Roger S. Porter

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  1. Tong Sun
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  2. C. Richard Desper
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  3. Roger S. Porter
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Sun, T., Desper, C.R. & Porter, R.S. Orientation in poly(ethylene terephthalate) drawn by solid state coextrusion. J Mater Sci 21, 803–809 (1986). https://doi.org/10.1007/BF01117358

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  • DOI: https://doi.org/10.1007/BF01117358

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