Accession Number : AD0851092

Title :   A Research Program on the Study of High Frequency Acoustical and Optical Sound Waves in Plastics and Rubbers and their Interaction with Electromagnetic Laser Radiation.

Descriptive Note : Annual rept. no. 1, 1 Nov 67-31 Oct 68,

Corporate Author : OREGON UNIV EUGENE DEPT OF CHEMISTRY

Personal Author(s) : Peticolas, W. L. ; Gayles, J. N. ; Glaze, James ; Stein, Paul

Report Date : DEC 1968

Pagination or Media Count : 63

Abstract : Part I describes the design and construction of a Brillouin and Raman angular disymmetry light scattering apparatus. Part II reports details on measurements of viscoelastic properties by means of Brillouin scattering. In particular the velocity, at a particular frequency is obtained through various transition temperatures. Part III outlines the theory of optical and acoustical phonon motions in polymers and describes the design and construction of an apparatus for stimulating these motions to such an extent that fracture occurs. (Author)

Descriptors :   (*RUBBER, WAVE PROPAGATION), (*PLASTICS, WAVE PROPAGATION), VISCOELASTICITY, POLYMERS, PHONONS, VIBRATION, SOUND, GAS LASERS, SCATTERING, SOLID ROCKET PROPELLANTS.

Subject Categories : Plastics
      Elastomers and Rubber
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE