A.R., Blythe, Electrical properties of polymers, Cambridge University perss, Cambridge, 1985 David I. Bower, An Introduction to Polymers Physics, Cambridge University Press, 2002 E..Hecht , and A., Zajac , Optics , Addison-Wesley Publishing Company , Singapore , 1982. I.M., Ward, An Introduction to the Mechanical Properties of Solid Polymers , John Wiley and Sons, 1993 J.E., Mark , Physical Properties of Polymers.American Chemical Society , Washington,DC, 1993. L.H., Sperling , Introduction to Physical Polymer Science, John Wiley and Sons , New York, 1992 L.R.C., Treloar , The Physics of Rubber Elasticity , Clarendon Press , Oxford.1985 M., Doi , The theory of Polymer Dynamics , Oxford University Press , Oxford , 1986 M., Yoshimura, Rheological studies on mixtures of corn starch and konjac - glucomannan, 1997 N.C., Mc Mrum , Principles of Polymer Engineering, Oxford University Press, Oxford , 1992. P.C., Painter, Fundamentals of Polymer Science, CRC Press, 1997 R.J., Young, Introduction to Polymers , Chapman and Hill , London , 1983 R.P., Physical Testing, Chapman and Hall, London, 1996