On the radiopolymerization of carbon disulfide

Details On the radiopolymerization of carbon disulfide On the radiopolymerization of carbon disulfide

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000rapc...58..217c&link_type=abstract

Radiation Physics and Chemistry, Volume 58, Issue 3, p. 217-222.

Physics

3

Scientific paper

Liquid carbon disulfide was irradiated under nitrogen with 1 MGy dose of γ-rays at room temperature. The chemical structure of the resulting radiopolymer was studied by electronic and FT-IR spectroscopy and was found to be that of the CS2-polymer obtained by UV irradiation, ultrasound or high pressure treatment. It consists of a mixture of a linear polymer (CS2)X and a ladder polymer (C3S2)X derived from carbon subsulfide (S--C--C--C--S). The mechanism of reaction is discussed and is suggested to be similar to that of photopolymerization, involving the formation of carbon monosulfide C--S and sulfur in the early reaction step. The implications of CS2 photopolymerization and radiopolymerization in the cosmochemistry of molecular clouds, planetary atmospheres and comets and meteorites are discussed.

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