Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

A novel orientation technique for semi-rigid polymers. 2. Mechanical properties of cellulose acetate and hydroxypropylcellulose films

Abstract

The networks of cellulose acetate and hydroxypropylcellulose prepared in the first part of this investigation were studied with regard to their mechanical properties. The quantities of particular interest were increases in tensile modulus and tensile strength obtained by drying the swollen films under strain, both uniaxial and equi-biaxial. These increases or improvements in mechanical properties were determined as a function of polymer concentration during cross-linking, polymer molecular weight, degree of cross-linking, and elongation during drying. In all cases, the improvements increased with increase in elongation during drying, and the largest increases were obtained in the case of the highest molecular weight polymer which had been lightly cross-linked in dilute (isotropic) solutions. The extent of ordering in these systems was gauged approximately by measurements of birefringence, which were correlated with their tensile moduli and tensile strengths.

This is a preview of subscription content, log in to check access.

References

  1. 1.

    Yang Y, Mark JE, Kloczkowski A, Erman B, Bahar I, (1994) Colloid Polym Sci 272:284–292

  2. 2.

    Erman B, Bahar I, Kloczkowski A, Mark JE (1991) Macromolecules 23:5335

  3. 3.

    Bahar I, Erman B, Kloczkowski A, Mark JE (1991) Macromolecules 23:5341

  4. 4.

    Erman B, Bahar I, Kloczkowski A, Mark JE (1992) in: Mark JE, Erman B (eds) Elastomeric polymer networks, Prentice Hall, Englewood Cliffs, New Jersey

  5. 5.

    Erman B, Haliloglu T, Bahar I, Mark JE (1991) Macromolecules 24:901

  6. 6.

    Erman B, Bahar I, Yang Y, Kloczkowski A, Mark JE (1992) in: Noda I, Rubingh DN (eds) Polymer solutions, blends, and interfaces. Elsevier Sci. Pub., Amsterdam

  7. 7.

    Kloczkowski A, Mark JE, Erman B, Bahar I (1992) in: Noda I, Rubingh DN (eds) Polymer solutions blends, and interfaces. Elsevier Sci. Pub., Amsterdam

  8. 8.

    Erman B, Bahar I, Kloczkowski A, Mark JE (1992) in: Aharoni SM (ed) Synthesis, characterization, and theory of polymeric networks and gels. Plenum, New York

  9. 9.

    Flory PJ (1953) Principles of polymer chemistry. Cornell Univ. Press. Ithaca, New York

  10. 10.

    Yang Y (1993) Ph.D. Thesis in Chemistry, The University of Cincinnati

  11. 11.

    Barton AFM (1991) Handbook of solubility parameters and other cohesion parameters. 2nd Ed. CRC Press, Boca Raton, Florida

  12. 12.

    Hay IL (1980) in: Fava RA (ed) Methods of experimental physics. Vol 2, Pt C, Academic Press, New York

  13. 13.

    Mark JE, Erman B (1988) Rubberlike elasticity. A molecular primer. Wiley-Interscience, New York

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Mark, J.E., Yang, Y., Kloczkowski, A. et al. A novel orientation technique for semi-rigid polymers. 2. Mechanical properties of cellulose acetate and hydroxypropylcellulose films. Colloid Polym Sci 272, 393–399 (1994). https://doi.org/10.1007/BF00659450

Download citation

Key words

  • Cellulose acetate
  • hydroxypropylcellulose
  • cross-linking
  • liquid-crystalline state
  • anisotropic state
  • novel orientation technique
  • oriented films
  • mechanical properties
  • maximum extensibility
  • tensile modulus
  • tensile strength
  • birefringence