Polymerization of vinyl aromatic monomers using cyclopentadienyl

Details Polymerization of vinyl aromatic monomers using cyclopentadienyl Polymerization of vinyl aromatic monomers using cyclopentadienyl

1987-06-08

1989-02-28

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526159, 526346, 5263471, C08F 464, C08F 1208

Patent

active

048086800

ABSTRACT:
Polymers of vinyl aromatic monomers having a high degree of syndiotacticity are prepared by contacting with a catalyst comprising a cyclopentadienyl zirconium (IV) complex and polymethylaluminoxane under polymerization conditions.

REFERENCES:
patent: 3027392 (1962-03-01), Herman
patent: 4544762 (1985-10-01), Kaminsky et al.
Polymer Preprints (Japan) 36(2) May 12, 1987.
Gazzetta Chimica Italiana 117(4) 249-250 (1987).
Macromolecules 1986, 19, 2464-2465.

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