Polymerization using bimetallic bis-lanthanoid initiators

Details Polymerization using bimetallic bis-lanthanoid initiators Polymerization using bimetallic bis-lanthanoid initiators

1994-02-14

1996-02-06

Nagumo, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253302, 5253337, 525411, 525412, 525415, 525416, 526170, 526172, 5263797, 528357, C08F 452, C08F29900

Patent

active

054896517

ABSTRACT:
"Living" polymerization methods are described wherein a bimetallic lanthanide complex initiator is reacted with a monomer. Using these methods, link-functionalized polymers can be formed that are capable of being modified after polymerization with various reactants, or to be biodegraded through oxidation or reduction or cleavage. The bimetallic lanthanide complex initiator can be used to polymerize methyl methacrylate in a living fashion. A two-step method of forming a triblock polymer using the bimetallic lanthanide complex initiator is also disclosed.

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