Accession Number : AD0639389

Title :   A STUDY OF ENERGY TRANSFER PROCESSES IN RADIATION CHEMISTRY: TRIPLET-TRIPLET TRANSFER IN POLYBUTADIENE.

Descriptive Note : Technical rept., Mar 65-30 Jun 66.

Corporate Author : STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s) : Golub,Morton A.

Report Date : JUL 1966

Pagination or Media Count : 33

Abstract : Benzene photo- and radiation sensitized cis-trans isomerization of pentene-2, hexene-2, heptene-2, and octene-2 all yield the same photo- and radiostationary cis/trans ratio, viz., 1.0. Yields of benzene triplet formation and radiation-induced unsensitized isomerization of the above olefines are reported. Thin films of polybutadiene containing small amounts of certain triplet-forming organic compounds were isomerized on exposure to ultraviolet light. This demonstrates that triplet-triplet transfer from sensitizer to polymer double bonds is quite efficient in the solid state. (Author)

Descriptors :   (*BUTADIENES, *RADIATION CHEMISTRY), (*PHOTOCHEMICAL REACTIONS, BUTADIENES), MOLECULAR ENERGY LEVELS, EXCITATION, TRANSPORT PROPERTIES, MOLECULAR ISOMERISM, POLYMERS, ALKENES, ADDITIVES, BENZENE, FILMS

Subject Categories : Radiation and Nuclear Chemistry
      Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE