Method for the preparation of polyvinyl phosphonic acid
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United States of America Patent
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Apr 18, 1989
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N/A
app pub date -
Mar 15, 1988
filing date -
Mar 15, 1988
priority date (Note) -
Expired
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Abstract
A process for preparing polyvinyl phosphonic acid by the steps of polymerizing bis(2-chloroethyl) vinyl phosphonate in the presence of a free radical initiator or catalyst, such as dicumyl peroxide. The resulting poly bis(2-chloroethyl) vinyl phosphonate is then subjected to acid hydrolysis to obtain high purity polyvinyl phosphonic acid having measurable and controllable molecular weight distribution.
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