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Title: Living olefin polymerization processes

Abstract

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.

Inventors:
;
Issue Date:
Research Org.:
Massachusetts Institute of Technology, Cambridge, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174464
Patent Number(s):
6,610,806
Application Number:
09/935,775
Assignee:
Massachusetts Institute of Technology (Cambridge, MA) OSTI
DOE Contract Number:  
FG02-86ER13564
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Schrock, Richard R., and Baumann, Robert. Living olefin polymerization processes. United States: N. p., 2003. Web.
Schrock, Richard R., & Baumann, Robert. Living olefin polymerization processes. United States.
Schrock, Richard R., and Baumann, Robert. Tue . "Living olefin polymerization processes". United States. https://www.osti.gov/servlets/purl/1174464.
@article{osti_1174464,
title = {Living olefin polymerization processes},
author = {Schrock, Richard R. and Baumann, Robert},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {8}
}

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