The story of Group IV metallocene polymerization catalysts has been a tremendous success in the ability to tune chemical reactivity through structural design. As new, nonmetallocene catalyst systems are being investigated, there has been a lack of quantitative relationships for predicting optimal catalyst design for both desired reactivity and polymeric properties. By utilizing a rational catalyst design strategy that focuses on obtaining a quantitative kinetic analysis of all relevant chemical steps from a family of related catalysts, we have attempted to correlate the fundamental reactivity within the olefin polymerization mechanism to distinctive chemical structures. Such studies have revealed both predictive, quantitative correlations and new, unexpected reactivity in a family of Group IV amine bis-phenolate catalysts.
","abstract_html":"<p>The story of Group IV metallocene polymerization catalysts has been a tremendous success in the ability to tune chemical reactivity through structural design. As new, nonmetallocene catalyst systems are being investigated, there has been a lack of quantitative relationships for predicting optimal catalyst design for both desired reactivity and polymeric properties. By utilizing a rational catalyst design strategy that focuses on obtaining a quantitative kinetic analysis of all relevant chemical steps from a family of related catalysts, we have attempted to correlate the fundamental reactivity within the olefin polymerization mechanism to distinctive chemical structures. Such studies have revealed both predictive, quantitative correlations and new, unexpected reactivity in a family of Group IV amine bis-phenolate catalysts.</p>","abstract_has_math":false,"creators":["Pletcher, Paul Daniel"],"institution":null,"degree_name":"Doctor of Philosophy (PhD)","degree_level":"Dissertation","degree_discipline":"Chemistry","degree_department":null,"school":null,"contributors":["Mahdi M. Abu-Omar","James Caruthers","W.N. Delgass","David R. McMillin"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-08-01T07:00:00Z","date_published":"2016-08-01T07:00:00Z","updated_at":"2026-07-24T03:54:02Z","subjects":["Pure sciences","1-hexene","Hafnium","Organometallic","Polymerization","Titanium","Zirconium","Chemistry"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://docs.lib.purdue.edu/open_access_dissertations/830","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Mahdi M. Abu-Omar","James Caruthers","W.N. Delgass","David R. McMillin"]},{"key":"dc:creator","label":"Author","values":["Pletcher, Paul Daniel"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemistry"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Pure sciences","1-hexene","Hafnium","Organometallic","Polymerization","Titanium","Zirconium","Chemistry"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://docs.lib.purdue.edu/open_access_dissertations/830"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The story of Group IV metallocene polymerization catalysts has been a tremendous success in the ability to tune chemical reactivity through structural design. As new, nonmetallocene catalyst systems are being investigated, there has been a lack of quantitative relationships for predicting optimal catalyst design for both desired reactivity and polymeric properties. By utilizing a rational catalyst design strategy that focuses on obtaining a quantitative kinetic analysis of all relevant chemical steps from a family of related catalysts, we have attempted to correlate the fundamental reactivity within the olefin polymerization mechanism to distinctive chemical structures. Such studies have revealed both predictive, quantitative correlations and new, unexpected reactivity in a family of Group IV amine bis-phenolate catalysts.
"]},{"key":"dc:title","label":"Title","values":["Kinetics and Mechanisms of Amine Bis-phenolate Polymerization Catalysts Featuring Titanium, Zirconium, or Hafnium Centers"]}]}],"canonical_facts":{"dc:contributor":["Mahdi M. Abu-Omar","James Caruthers","W.N. Delgass","David R. McMillin"],"dc:creator":["Pletcher, Paul Daniel"],"dc:description.abstract":["The story of Group IV metallocene polymerization catalysts has been a tremendous success in the ability to tune chemical reactivity through structural design. As new, nonmetallocene catalyst systems are being investigated, there has been a lack of quantitative relationships for predicting optimal catalyst design for both desired reactivity and polymeric properties. By utilizing a rational catalyst design strategy that focuses on obtaining a quantitative kinetic analysis of all relevant chemical steps from a family of related catalysts, we have attempted to correlate the fundamental reactivity within the olefin polymerization mechanism to distinctive chemical structures. Such studies have revealed both predictive, quantitative correlations and new, unexpected reactivity in a family of Group IV amine bis-phenolate catalysts.
"],"dc:identifier":["https://docs.lib.purdue.edu/open_access_dissertations/830"],"dc:subject":["Pure sciences","1-hexene","Hafnium","Organometallic","Polymerization","Titanium","Zirconium","Chemistry"],"dc:title":["Kinetics and Mechanisms of Amine Bis-phenolate Polymerization Catalysts Featuring Titanium, Zirconium, or Hafnium Centers"],"thesis:degree_discipline":["Chemistry"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Doctor of Philosophy (PhD)"]},"updated_at":"2026-07-24T03:54:02Z"}