Title: Olefin metathesis for effective polymer healing via dynamic exchange of strong carbon-carbon bonds

Abstract

A method of preparing a malleable and/or self-healing polymeric or composite material is provided. The method includes providing a polymeric or composite material comprising at least one alkene-containing polymer, combining the polymer with at least one homogeneous or heterogeneous transition metal olefin metathesis catalyst to form a polymeric or composite material, and performing an olefin metathesis reaction on the polymer so as to form reversible carbon-carbon double bonds in the polymer. Also provided is a method of healing a fractured surface of a polymeric material. The method includes bringing a fractured surface of a first polymeric material into contact with a second polymeric material, and performing an olefin metathesis reaction in the presence of a transition metal olefin metathesis catalyst such that the first polymeric material forms reversible carbon-carbon double bonds with the second polymeric material. Compositions comprising malleable and/or self-healing polymeric or composite material are also provided.

Inventors:

Guan, Zhibin; Lu, Yixuan

Issue Date:

Tue Sep 15 00:00:00 EDT 2015

Research Org.:

Univ. of California, Oakland, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1215548

Patent Number(s):

9133313

Application Number:

13/962,380

Assignee:

The Regents of the University of California (Oakland, CA)

Patent Classifications (CPCs):

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients

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C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP

C08J2309/00 - Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
C08J3/24 - Crosslinking, e.g. vulcanising, of macromolecules
C08J3/246 - {Intercrosslinking of at least two polymers}

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients

C08K5/56 - Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS

C08L9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

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DOE Contract Number:  

FG02-04ER46162

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Aug 08

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE