发明名称 |
LIVING OLEFIN POLYMERIZATION PROCESSES |
摘要 |
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. |
申请公布号 |
WO9846651(A3) |
申请公布日期 |
1999.03.25 |
申请号 |
WO1998US07466 |
申请日期 |
1998.04.09 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
SCHROCK, RICHARD, R.;BAUMANN, ROBERT |
分类号 |
C07C217/08;C07C217/90;C07F7/00;C07F7/28;C08F2/00;C08F2/46;C08F4/18;C08F4/64;C08F10/00;C08F297/06 |
主分类号 |
C07C217/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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