Title:
【発明の名称】官能基化されたポリマーを製造するための方法
Document Type and Number:
Japanese Patent JP2002524584
Kind Code:
A
Abstract:
The present invention provides a process for making functionalized polymers comprising the steps of(a) initiating polymerization of an unsaturated monomer with a lithium initiator having the structure R1R2R3Si-O-A-Li wherein A is a branched or straight chain bridging group having at least two carbon atoms, R1,R2, and R3 are alkyl, alkoxy, aryl, or alkaryl groups having from 1 to 10 carbon atoms, thus producing a functionalized polymer which has a protecting silyl group at one end thereof; and(b) contacting the protected polymer with aqueous acid to remove residual lithium, and(c) contacting the protected polymer with from 1 to 10 equivalents of an organic or inorganic hydride; and(d) contacting the resulting solution with aqueous acid, and(e) recovering a linear or branched deprotected polymer having one or more terminal functional groups.
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Inventors:
Benning, Robert Challes
Willis, Carl Leslie
Willis, Carl Leslie
Application Number:
JP2000568878A
Publication Date:
August 06, 2002
Filing Date:
August 31, 1999
Export Citation:
Assignee:
Ciel International Research Mart Shats Pay BV
International Classes:
C08C19/44; C08F8/00; C08F8/04; (IPC1-7): C08F8/00; C08F8/04
Attorney, Agent or Firm:
Yoshio Kawaguchi (5 outside)