Abstract
The computation of the orientational averages is a great problem in the case of semicrystalline polymers. In a previous communication [1] it has been shown that sinθ=f(λ) sinθ′ describes the orientational changes satisfactorily for a certain class of polymers. In this paper some alternative deformation schemes are also discussed. It has been concluded that birefringence provides a useful guideline in the choice of a deformation scheme.
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References
Biswas PK (1984) Coll & Polym Sci 262:623
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Hadley DW, Pinnock PR, Ward IM (1969) J Mater Sci 4:152
Ward IM (1975) (ed) Ward IM, Structure and Properties of Oriented Polymers, Applied Science Publishers Ltd, London
Biswas PK, Sengupta S, Basu AN (1984) Macromol Chem Rapid Commun 5:295
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Biswas, P.K., Sengupta, S. & Basu, A.N. Mechanical properties of oriented fibres of semicrystalline polymers based upon orientation function from optical properties. Colloid & Polymer Sci 264, 128–130 (1986). https://doi.org/10.1007/BF01414838
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DOI: https://doi.org/10.1007/BF01414838