Polyisoprene Grafted Nanoparticles



Reference #: 01058

The University of South Carolina is offering licensing opportunities for a method synthesizing polyisoprene grafted nanoparticles to prepare rubber on silica surfaces.

Invention Description:

The subject invention is a new method for polymerizing isoperene on silica nanoparticle surfaces that allows more dispersion of silica fillers in the rubber or polyolefin matrix.

Potential Applications:

Functionalization of rubber for improved mechanical properties

Advantages and Benefits:

1.  Enhances the mechanical properties of the resulting composite materials

2.  The surface anchored polyisoprene possesses a much higher molecular weight than reports in literature, which is tremendously important for industry applications.


Polyisoprene is recognized as an important class of rubber materials for the automotive industry. It can be prepared in a variety of traditional ways, but few reports explore the polymerization of isoprene in a controlled manner. Polyisoprene contains many double bonds in the polymer backbone, which allows further functionalization and chemical modifications

Patent Information:
Title App Type Country Serial No. Patent No. File Date Issued Date Expire Date Patent Status
Butadiene-Derived Polymers Grafted Nanoparticles and Their Methods of Manufacture and Use Utility United States 14/597,494 9,249,250 1/15/2015 2/2/2016    
For Information, Contact:
Technology Commercialization
University of South Carolina
Brian Benicewicz
Lei Wang
Mohammad Mohammadkhani
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