ABSTRACT The nature of the MnCl2 salt as a filler to polycarbonate , including their composition, particles dimensions and homogeneity of distribution have been studied using different spectroscopic techniques (XRD, DSC and TGA). A slight increases in the chain-chain separation due to the interaction of the MnCl2 salt with the polycarbonate chains was observed , while a decrease in the optical energy gap (Eopt ) of the polycarbonate polymer with increasing the salt concentration was detected .However employing impedance spectroscopy in the frequency range 10Hz up to 106 Hz. reveals an increase in the dielectric permittivity and conductivity with increasing salt content
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nullH. El Ghanem, S. Saq’an, M. Saadi and S. Abdul Jawad, "On the Electrical and Optical Properties of Polycarbonate /MNCl2 Composite," Journal of Modern Physics, Vol. 2 No. 12, 2011, pp. 1553-1559. doi: 10.4236/jmp.2011.212189.
 L. H. Sperling, “Introduction to Physical Polymer Sci- ence,” John Wiley & Sons, Inc., Hoboken, 2006.
 H. G. Elias, “An Introduction to Polymer Science,” Wein- heim, New York, 1997.
 N. G. C. McCrum, P. C. Buckley and B. Bucknall, “Prin- ciples of Polymer Engineering,” 2nd Editon, Oxford Uni- versity Press, New York, 1997, pp. 242-245.
 M. C. Lovell, A. J. Avery and M. W. Vernon, “Physical Properties of Materials,” Van Nostrand Company Ltd., London, 1976.
 S. A. Alterovitz, R. M. Sieg, N. S. Shoemaker and J. J. Pouch, “Optical Dispersion Relations for “Diamondlike” Carbon Films,” 1989 Spring Meeting of the Materials Research Society, San Diego, 24-29 April 1989.
 S. A. Saq’an, A. S. Ayesh and A. Zihlif, “Optical and Thermal Properties of Poly (Ethylene Oxide) Doped with MnCl2 Salt,” Optical Materials, Vol. 24, No. 4, 2004, pp. 629-636. doi:10.1016/S0925-3467(03)00166-6
 R. Checchetto, A. Miotello, A. Chayahara, “Structure and Optical Properties of Boron Nitride Thin Films Deposited by Radio-Frequency Sputtering on Polycarbonate,” Journal of Physics: Condensed Matter, Vol. 12, No. 44, 2000, pp. 9215-9220.
 S. A. Saq’an, A. S. Ayesh, A. Zihlif, E. Martuscelli and G. Ragosta, “Physical Properties of Polystyrene/Alum Composites,” Polymer Testing, Vol. 23, No. 7, 2004, pp. 739- 745. doi:10.1016/j.polymertesting.2004.04.008
 S. M. Aziz and M. H. El-Mallah, “A.C. Conductivity and Dielectric Properties of Polycarbonate Sheet,” International Journal of Polymeric Materials, Vol. 54, No. 12, 2005, pp. 1157-1168.
 Suzhu Yu, Peter Hing, and Xiao Hu. R. Checchetto, A. Miotello and A. Chayahara, “Dielectric Properties of Po- lystyrene-Aluminum-Nitride Composites,” Journal of Ap- plied Physics, Vol. 88, No. 1, 2000, pp. 398-404.
 A. S. Ayesh and R. A. Abdel-Rahman, “Optical and Electrical Properties of Polycarbonate/MnCl2 Composite Films,” Journal of Plastic Films and Sheeting, Vol. 24, No. 2, 2008, pp. 109-124.
 C. Uma Devi, A. K. Sharma and V. R. N. Rao, “Electrical and Optical Properties of Pure and Silver Nitrate-Doped Polyvinyl Alcohol Films,” Material Letters, Vol. 56, No. 3, 2002, pp. 167-174.
 Gh. A. Omed and D. S. Mahmoud, “Physical Properties of Pure and Copper Oxide Doped Polystyrene Films,” International Journal of Material Science, Vol. 5, No. 4, 2010, pp. 537-545.
 A. S. Ayesh, “Dielectric Relaxation and Thermal Stability of Polycarbonate doped with MnCl2 Salt,” Journal of Thermoplastic Composite Materials, Vol. 21, No. 4, 2008, pp. 309-322. doi:10.1177/0892705708089475
 M. S. Al Sa’di, “Electrical and Optical Properties of Polycarbonate (PC)/MnCl2 Composite,” MSc Thesis, Jor- dan University of Science and Technology, Al Ramtha, 2006.
 Y. A. Hamam, H. M. El-Ghanem, I. M. Arafa, M. R. Said and I. Abu-Aljarayish, “Magnetic Behavior of Polycarbosilazane FeII, FeIII and mixed-valence FeII-III chloride metallopolymers,” Polymer International, Vol. 56, No. 3, 2007, pp. 376-380. doi:10.1002/pi.2157
 I. Arafa, H. El-Ghanem, A. Hallak, and S. Abdul Jawad, “Dielectric Spectroscopy of Polycarbosilazane-Based CuCl2 Metallopolymers,” International Journal of Polymeric Materials, Vol. 55, No. 9, 2005, pp. 857-870.
 I. M. Arafa and H. El-Ghanem, “Formation, Characterization and Stability of Novel Aluminocarbosilazane Macro- molecules,” Journal of Macromolecular Science, Vol. 40, No. 9, 2003, p. 977. doi:10.1081/MA-120023531
 H. M. El Ghanem, H. Attar, H. Sayid Ahmad and S. Abduljawad, “Dielectric Spectroscopy of Conducting Polyaniline Polymer,” International Journal of Polymeric Ma- terials, Vol. 55, No. 9, 2006, pp. 663-679.
 H. El-Ghanem, S. Abdul Jawad, J. Aljundi, F. Afaneh, and I. Arafa, “Electrical Properties of Macromolecular Complex of Coordinated Polymers with Mixed Valance of Co(II), Co(III), and Co(II-III),” Polymer International, Vol. 52, No. 7, 2003, pp. 1125-1130. doi:10.1002/pi.1193
 J. Tauc, R. Grigorovici and A. Vancu, “Optical Properties and Electronic Structure of Amorphous Germanium,” Physica Status Solidi, Vol. 15, No. 2, 1966, pp. 627-637.
 L. I. Soliman, “Influence of γ-Irradiation on Optical and Electrical Properties of Amorphous CuInSeTe, CuInSTe and Thin Films,” Solid State Physics Laboratory, National Research Center, Cairo, 2002, p. 23.
 A. Abu El-Fadl, E. M. El-Maghraby and G. A. Mohamad, “Influence of gamma Radiation on the Absorption Spectra and Optical Energy Gap of Li-Doped ZnO Thin Films,” Crystal Research and Technology, Vol. 39, No. 2, 2004, pp. 143-150. doi:10.1002/crat.200310162
 M. Dongol, “Optical Absorption and Structural Properties of As-Deposited and Thermally Annealed As-Te-Ga Thin Films,” Egyptian Journal of Solids, Vol. 25, No. 1, 2002, pp. 33-47.
 F. Urbach, “The Long-Wavelength Edge of Photographic Sensitivity and of the Electronic Absorption of Solids,” Physical Review, Vol. 92, No. 5, 1953, p. 1324.