Etude de la chloration du polychlorure de vinyle en fonction de sa tacticite |
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| Authors: | B-M Quenum P Berticat JL de la Peńa J Millan |
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| Institution: | Laboratoire de Chimie Macromoléculaire, Laboratoire Associé au CNRS, Université Claude Bernard Lyon I, 43, Bd du 11 Novembre 1918, 69100, Villeurbanne, France;Institut de Plasticos y Caucho, Juan de la Cierva, Madrid 6, Espagne |
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| Abstract: | Polyvinyl chloride samples of various tacticity have been prepared and photochlorinated in CCl4 for 4 hr. The chlorination degree correlates directly with the degree of syndiotacticity. Initial PVC with syndiotacticity about 56 per cent, which can be regarded as alternate sequences of syndiotactic and isotactic diads, is quickly chlorinated. The mechanism of chlorine attack on the macromolecula is directly connected with the stereoregularity. |
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