Concepedia

John A. Ewen

JA

16

Publications

2.8K

Citations

13

H-Index

1975

Active since

Affiliations

University of Delaware(Current)

John A. Ewen is an author at University of Delaware specializing in engineering, chemistry, and chemical engineering.

Top concepts

ChemistryEngineeringOrganic ChemistryChemical EngineeringPolymer ChemistryCatalysisPolymer SynthesisPolymersPolymer ScienceMaterial Science

Publications per year

1975–2004

16

Publications

16

Mechanisms of stereochemical control in propylene polymerizations with soluble Group 4B metallocene/methylalumoxane catalysts

John A. Ewen · Journal of the American Chemical Society · 1984 · 909 citations

Chemical Engineering, Engineering, Macromolecular Engineering +14

Syndiospecific propylene polymerizations with Group IVB metallocenes

John A. Ewen, Robert L. Jones, A. Razavi et al. · Journal of the American Chemical Society · 1988 · 902 citations

Materials Science, Chemical Engineering, Engineering +14

Metallocene/polypropylene structural relationships: Implications on polymerization and stereochemical control mechanisms

John A. Ewen, M.J. Elder, Robert L. Jones et al. · Makromolekulare Chemie Macromolecular Symposia · 1991 · 268 citations

Engineering, Metallocene/polypropylene Structural Relationships, Organic Chemistry +17

Crystal structures and stereospecific propylene polymerizations with chiral hafnium metallocene catalysts

John A. Ewen, Luc Haspeslach, Jerry L. Atwood et al. · Journal of the American Chemical Society · 1987 · 209 citations

Asymmetric Catalysis, Organic Material Chemistry, Chemical Engineering +14

<sup>13</sup>C Nuclear magnetic resonance characterization of poly(propylene) prepared with homogeneous catalysts

H. N. Cheng, John A. Ewen · Die Makromolekulare Chemie · 1989 · 89 citations

Engineering, Organic Chemistry, Chemistry +17

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