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US 2019/0211142 A1Published application
Oligomeric and polymeric species comprising cyclobutane units
AssigneeThe Trustees of Princeton University
InventorsPaul J. CHIRIK, C. Rose KENNEDY, Sarah RUSSELL
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Abstract
In one aspect, oligomeric and polymeric species are described herein exhibiting new architectures and associated properties. In some embodiments, such species are synthesized by oligomerization or polymerization of diene monomer via cycloaddition in the presence of a transition metal complex. Oligomers described herein, for example, comprise cyclobutane units in the oligomer backbone. Similarly, a polymers described herein comprise cyclobutane units in the polymer backbone.
Claims35
An oligomer comprising:
- cyclobutane units in the oligomer backbone.
A polymer comprising:
- cyclobutane units in the polymer backbone.
A method polymerization comprising:
- providing a reaction mixture including a diene monomer component;
- and
- polymerizing the diene monomer component in the presence of a transition metal complex or derivative thereof to provide a polymer, wherein the transition metal complex is of Formula (I):
- wherein M is selected from the group consisting of iron, cobalt and nickel and wherein R1-R7 are independently selected from the group consisting of hydrogen, alkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl and heteroaryl, wherein the alkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl and heteroaryl are optionally substituted with one or more substituents selected from the group consisting of (C1-C10)-alkyl, (C1-C10)-alkenyl, alkoxy, halo and hydroxyl;
- and wherein L is selected from the group consisting of halo, N2, alkene/diene, carboxylate and CO, and N2 and n is 1 or 2.
2 more elements
Dependencies are inferred from the claim text.