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Title: Living olefin polymerization processes

Processes for the living polymerization of olefin monomers with terminal carbon-carbon double bonds are disclosed. The processes employ initiators that include a metal atom and a ligand having two group 15 atoms and a group 16 atom or three group 15 atoms. The ligand is bonded to the metal atom through two anionic or covalent bonds and a dative bond. The initiators are particularly stable under reaction conditions in the absence of olefin monomer. The processes provide polymers having low polydispersities, especially block copolymers having low polydispersities. It is an additional advantage of these processes that, during block copolymer synthesis, a relatively small amount of homopolymer is formed.
Authors:
;
Publication Date:
OSTI Identifier:
335432
Report Number(s):
US 5,889,128/A/
PAN: US patent application 8-843,161
DOE Contract Number:
FG02-86ER13564
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 30 Mar 1999
Research Org:
Massachusetts Institute of Technology
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPOLYMERS; SYNTHESIS; ALKENES; POLYMERIZATION; CHEMICAL COMPOSITION