Syndiotactic polystyrene nanocomposite and manufacturing method thereof
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United States of America Patent
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May 10, 2005
Grant Date -
Feb 5, 2004
app pub date -
Jun 29, 2001
filing date -
Jul 18, 2000
priority date (Note) -
Expired
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Abstract
The syndiotactic polystyrene nanocomposite according to the present invention has nano silicate materials dispersed individually in a styrene polymer matrix by intercalation and exfoliation during polymerization. Besides, the syndiotactic polystyrene nanocomposite according to the present invention is prepared by using a catalytic system composed of a phyllosilicate-supported Group IVB transition metal catalyst and alkylaluminoxane, wherein the phyllosilicate-supported Group IVB transition metal catalyst comprises: a) a polymer, b) a phyllosilicate and c) a Group IVB transition metal compound, and the polymer (a) is used as an insulating material or media of the phyllosilicate (b) and the Group IVB transition metal compound (c).
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