Cyclo- and cyclized diene polymers. XIII. γ-Ray-initiated polymerization of 1,3-dienes |
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| Authors: | V clav S&#x t p n,Josef Vodehnal,Ivo K ssler,Norman G. Gaylord |
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| Affiliation: | Václav S̆těpán,Josef Vodehnal,Ivo Kössler,Norman G. Gaylord |
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| Abstract: | The γ-ray-initiated polymerization of butadiene, isoprene, and 2,3-dimethylbutadiene-1,3 was carried out at temperatures of 20°C. and ?78°C. Polymers of butadiene and isoprene with mixed linear and cyclic structure were proved to result from the polymerization at ?78°C. A monocyclic structure was found for the 2,3-dimethylbutadiene-1,3 polymers initiated either at ?78°C. or in the thiourea canal complex at 20°C. |
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