Title of article :
Vibrational dynamics of syndiotactic poly(1-butene)
Author/Authors :
Poonam Sharma، نويسنده , , Poonam Tandon، نويسنده , , V.D Gupta، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Abstract :
The normal modes and their dispersions for form 1 of syndiotactic poly(1-butene) have been obtained using Wilson’s GF matrix method as modified by Higgs. Optically active frequencies corresponding to the zone center and zone boundary are identified and discussed. The Urey Bradley potential field is obtained by least square fitting of the observed Fourier transform infrared absorption bands. Specific heat has been obtained from dispersion curves via density of states. A comparative study of isotactic and syndiotactic forms of poly(1-butene) is presented.
Keywords :
Dispersion curves , phonons , Density of states , heat capacity , Urey Bradley field , syndiotactic
Journal title :
European Polymer Journal(EPJ)
Journal title :
European Polymer Journal(EPJ)