Iowa State University Research Foundation, Inc.

Kumho Petrochemical

Bradley M Schmidt

Gwanghoon Kwag

Aaron David Sadow

Hanbaek Lee

Dong Eun Kang

Aradhana Pindwal

The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV): R, R, R, a, and n are as described herein and R, R', R&#x2033;, x, and k are as described herein and methods for preparation thereof. The present invention also relates to a compound having the structure of Formula (II):

End group functionalization agents for polydiene

The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV): wherein A, R, R, R, a, and n are as described herein and wherein R, R', R&#x2033;, x, and k are as described herein and methods for preparation thereof. The present invention also relates to a compound having the structure of Formula (II): wherein A, R, R, R, a, and n are as described herein. The present invention also relates to a process for polymerizing unsaturated hydrocarbon monomers.

The present invention relates to processes for polymerizing unsaturated hydrocarbon monomers. The present invention also relates to a precatalyst having the structure of Formula (I):M{C(SiHAlk)}&#x2003;&#x2003;(I),and to a catalyst comprising the structure of Formula (II):MC(SiHAlk)X&#x2003;&#x2003;(II),and methods for preparation thereof.

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Ames, IA, United States of America

Bradley M Schmidt