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High-Speed, Stereoselective Polymerization for Renewable, Bio-Derived Plastics

Colorado State University

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Technology Marketing Summary

A rapid, selective catalytic system to produce vinyl plastics from renewable biomass. The resulting polymers offer cost and performance advantages over petroleum-based polyacrylics such as pMMA and are ideally suited for a wide variety of applications, including optical fibers and heat/solvent resistant plastics.
 

Description

Fabrication of polymers and plastics from naturally renewable feedstocks offers the potential for a cost-effective and sustainable alternative to petroleum-based polymers. Biomass-derived polymers based on butyrolactones are a potential substitute for petroleum-derived polyacrylic plastics, but methods suitable for large-scale production have been unknown previously.

Researchers at Colorado State University have developed multiple methods to synthesize polymers from a class of renewable compounds encompassing several butyrolactones. The methods are catalytic and utilize novel coordination polymerization systems that exhibit exceptional activity and proceed at high speed. Furthermore, use of coordination polymerization allows for the synthesis of stereoregular polymers from racemic monomer solutions at room temperature (unprecedented in the case of at least one butyrolactone).

In contrast with alternative systems based on radical polymerization, this coordination polymerization method yields stereoregular, isotactic polymer products with high reaction rates and high conversion percentages. The resulting plastics exhibit enhanced materials properties over the widely-used poly(methyl methacrylate) (pMMA). In particular, they display high stereoregularity and excellent resistance to heat, solvents, and scratching, as well as extremely high glass-transition temperatures (Tg), up to 290 °C.

The sustainability and advantageous properties exhibited by these materials make them excellent candidates to displace petroleum-based polymers based on methacrylates. The enhanced activity of the catalytic polymerization reaction and the efficient use of starting materials may make this a cost effective method to produce renewable, bio-derived plastics at large scale. The superior features of the resulting polymers may offer cost and performance advantages over petroleum-based polyacrylics in a number of applications, such as plastic optical fibers and any application requiring high heat and solvent resistance.

Benefits
  • Rapid, selective catalytic system to produce vinyl plastics from renewable biomass
  • Stereoregular, isotactic polymers with high T (290°C) and outstanding resistance to heat, solvents, and scratching
  • Renewable alternative with cost and performance advantages over petroleum-based polyacrylics such as pMMA
Applications and Industries
  • Optical fibers
  • Heat- and solvent-resistant plastics
  • Replacement for PMMA in manufacturing
Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Application 20140058041
Application
20140058041
POLYMERIZATION CATALYSTS, METHODS AND PRODUCTS
The invention provides novel polymer compositions and methods for preparing such compositions. The invention also provides methods for polymerizing various unsaturated monomers, including naturally occurring or plant biomass-derived renewable acrylic monomers. The monomers can be rapidly polymerized using various organic catalysts or organometallic catalysts, as described herein. In one embodiment, nearly perfectly isotactic polymers (mmmm>99%) can be prepared using a C.sub.2-symmetric zirconocenium catalyst.
08/26/2013
Filed
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
12-008, 12-035PrototypeAvailable07/02/201209/26/2014

Contact CSU About This Technology

To: Jeremy Nelson<jeremy.nelson@colostate.edu>