{"doi":"10.1021/ma801962v","title":"Living Coordinative Chain-Transfer Polymerization and Copolymerization of Ethene, α-Olefins, and α,ω-Nonconjugated Dienes using Dialkylzinc as “Surrogate” Chain-Growth Sites","abstract":null,"journal":"Macromolecules","year":2008,"id":686415,"datarank":0.7412463633913957,"base_score":4.941642422609304,"endowment":4.941642422609304,"self_citation_contribution":0.7412463633913957,"citation_network_contribution":0.0,"self_endowment_contribution":0.7412463633913957,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":139,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1018706,"name":"Jia Wei","orcid":"0000-0003-2283-8990","position":1,"is_corresponding":false},{"id":486373,"name":"Lawrence R. Sita","orcid":"0000-0002-9880-1126","position":2,"is_corresponding":false},{"id":605772,"name":"Wei Zhang","orcid":"0000-0003-3304-9161","position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Living Coordinative Chain-Transfer Polymerization and Copolymerization of Ethene, α-Olefins, and α,ω-Nonconjugated Dienes using Dialkylzinc as “Surrogate” Chain-Growth Sites","abstract":"Highly efficient, rapid, and reversible chain transfer between active transition-metal-based propagating centers derived from {Cp*Hf(Me)[N(Et)C(Me)N(Et)]}[B(C 6 F 5 ) 4 ] (Cp* = η 5 -C 5 Me 5 ) ( 1a ) or {Cp*Hf(Me)[N(Et)C(Me)N(Et)]}[B(C 6 F 5 ) 3 Me] ( 1b ) and multiple equivalents of dialkylzinc (ZnR 2 ) acting as “surrogate” chain-growth sites has been achieved for establishing the living coordinative chain-transfer polymerization (CCTP) of ethene, α-olefins, and α,ω-nonconjugated dienes and living CCTP copolymerization of ethene with α-olefins and α,ω-nonconjugated dienes. These living CCTP processes not only provide a work-around solution to the “one chain per metal” cap on product yield currently limiting traditional living coordination polymerization of ethene and α-olefins but, in addition, provide access to practical volumes of a variety of unique new classes of precision polyolefins of tunable molecular weights and very narrow polydispersity ( M w / M n ≤ 1.1).","is_dataset_classified":null,"base_score":4.941642422609304,"endowment":4.941642422609304,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"21097893","pmcid":null,"openalex_id":"https://openalex.org/W2058934884","authors":[],"funders":[],"total_grants":0,"fwci":5.1124,"citation_percentile":0.95939844,"influential_citations":0,"citation_trend":[{"year":2012,"count":10},{"year":2013,"count":10},{"year":2014,"count":10},{"year":2015,"count":5},{"year":2016,"count":2},{"year":2017,"count":7},{"year":2018,"count":7},{"year":2019,"count":9},{"year":2020,"count":7},{"year":2021,"count":12},{"year":2022,"count":9},{"year":2023,"count":6},{"year":2024,"count":7},{"year":2025,"count":6},{"year":2026,"count":2}],"oa_status":"closed","license":null,"oa_locations":[{"url":"https://pubs.acs.org/doi/pdf/10.1021/ma801962v","host_type":"publisher"},{"url":"https://doi.org/10.1021/ma801962v","host_type":"journal"}],"fields_of_study":["Organometallic Complex Synthesis and Catalysis","Organoboron and organosilicon chemistry","Carbon dioxide utilization in catalysis"],"mesh_terms":[],"keywords":["Chain transfer","Living polymerization","Copolymer","Polymerization","Chemistry","Polymer chemistry","Dispersity","Reversible addition−fragmentation chain-transfer polymerization","Radical polymerization","Organic chemistry","Polymer"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-08-18T19:25:11.248570Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}