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Polymerization of both solid and liquid acetylene monomers induced by means of Co/sup 60/ gamma rays at the rate of 3 x 10/sup 4/ approximates 10/ sup 5/ r/hr at -196 deg C and under a pressure of 10/sup -2/ approximates 10/sup -3/ mm/Hg was studied. Results indicated that the liquid phase polymerization proceeds by a cationic mechanism for polymers mainly in the cis- form. In the solid phase, the trans- form dominates. Therefore, a new mechanism, electronic polymerization, is proposed for solid state polymerization at low temperatures. (OID)
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Tabata et al. (1962) studied this question.
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