title: Phonon dispersion and heat capacity in polyfuran.
abstract: A study of the normal modes of vibration and their dispersion in polyfuran (Pfu) based on the Urey-Bradley force field is reported. It provides a detailed interpretation of IR and Raman spectra. Characteristic features of dispersion curves such as regions of high density-of-states, repulsion and character mixing of dispersive modes are discussed. Predictive values of heat capacity as a function of temperature are calculated.
authors.affiliation: Physics Department, Integral University, Lucknow 226026, Uttar Pradesh, India.
authors.forename: Parvej
authors.initials: P
authors.lastname: Ali
authors.forename: Seema
authors.initials: S
authors.lastname: Srivastava
authors.forename: Irfan
authors.initials: I
authors.lastname: Ali Khan
authors.forename: V D
authors.initials: VD
authors.lastname: Gupta
authors.forename: Saif-Ul-Islam
authors.initials: SU
authors.lastname: Ansari
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D005663:Furans / Q000737:chemistry*; D060739:Phonons; D013055:Spectrophotometry, Infrared; D013059:Spectrum Analysis, Raman; D013814:Thermal Conductivity
chemical_list: D000814:Aniline Compounds; D005663:Furans; C514403:poly(furan-co-aniline)