Laboratory studies of polyoxymethylene - Application to comets

Details Laboratory studies of polyoxymethylene - Application to comets Laboratory studies of polyoxymethylene - Application to comets

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...86..189m&link_type=abstract

Icarus (ISSN 0019-1035), vol. 86, July 1990, p. 189-197. Research supported by the Miller Foundation and Guggenheim Foundation.

Physics

6

Formaldehyde, Giotto Mission, Halley'S Comet, Mass Spectroscopy, Polymer Physics, Positive Ions, Sublimation, Vapor Phases, Comets, Laboratory Studies, Polyoxymethylene, Spectrometry, Experiments, Formaldehyde, Sublimation, Ions, Origin, Formation, Picca Instrument, Spacecraft Observations, Giotto Mission, Gaseous Phase, Halley, Hypotheses, Procedure, Mass Spectrometry

Scientific paper

Formaldehyde polymer mass spectra gathered by means of the particle beam and direct insertion probe system indicate that these substances can evaporate at 300 K and yield gas-phase polyoxymethylene glycols in the presence of water. These experimental results are presently used to ascertain the likely origin of the polymeric ions that have been observed with the Giotto mission's PICCA instrument. The experimental results are held to be in keeping with the hypothesized presence of formaldehyde polymers in comets.

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