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Novel self-healing materials chemist...

Wilson, Gerald O.

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Novel self-healing materials chemistries for targeted applications.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Novel self-healing materials chemistries for targeted applications./
Author:	Wilson, Gerald O.
Description:	217 p.
Notes:	Adviser: Jeffrey S. Moore.
Contained By:	Dissertation Abstracts International68-11B.
Subject:	Chemistry, Polymer. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3290429
ISBN:	9780549342373

Novel self-healing materials chemistries for targeted applications.
Wilson, Gerald O.

Novel self-healing materials chemistries for targeted applications. - 217 p.

Adviser: Jeffrey S. Moore.

Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007.

[1] White, S. R.; Sottos, N. R.; Geubelle, P. R.; Moore, J. S.; Kessler, M. R.; Sriram, S. R.; Brown, E. N.; Viswanathan, S. Nature 2001, 409, 794.

ISBN: 9780549342373Subjects--Topical Terms:

1018428
Chemistry, Polymer.

Novel self-healing materials chemistries for targeted applications.
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020 $a 9780549342373
035 $a (UMI)AAI3290429
035 $a AAI3290429
040 $a UMI $c UMI
100 1 $a Wilson, Gerald O. $3 1280759
245 1 0 $a Novel self-healing materials chemistries for targeted applications.
300 $a 217 p.
500 $a Adviser: Jeffrey S. Moore.
500 $a Source: Dissertation Abstracts International, Volume: 68-11, Section: B, page: 7608.
502 $a Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007.
520 $a [1] White, S. R.; Sottos, N. R.; Geubelle, P. R.; Moore, J. S.; Kessler, M. R.; Sriram, S. R.; Brown, E. N.; Viswanathan, S. Nature 2001, 409, 794.
520 $a Self-healing materials of the type developed by White and co-workers [1] were designed to autonomically heal themselves when damaged, thereby extending the lifetime of various applications in which such material systems are employed. The system was based on urea-formaldehyde microcapsules containing dicyclopentadiene (DCPD) and Grubbs' catalyst particles embedded together in an epoxy matrix. When a crack propagates through the material, it ruptures the microcapsules, releasing DCPD into the crack plane, where it comes in contact and reacts with the catalyst to initiate a ring opening metathesis polymerization (ROMP), bonding the crack and restoring structural continuity.
520 $a The present work builds on this concept in several ways. Firstly, it expands the scope and versatility of the ROMP self-healing chemistry by incorporation into epoxy vinyl ester matrices. Major technical challenges in this application include protection of the catalyst from deactivation by aggressive curing agents, and optimization of the concentration of healing agents in the matrix. Secondly, new ruthenium catalysts are evaluated for application in ROMP-based self-healing materials. The use of alternative derivatives of Grubbs' catalyst gave rise to self-healing systems with improved healing efficiencies and thermal properties. Evaluation of the stability of these new catalysts to primary amine curing agents used in the curing of common epoxy matrices also led to the discovery and characterization of new ruthenium catalysts which exhibited ROMP initiation kinetics superior to those of first and second generation Grubbs' catalysts. Finally, free radical polymerization was evaluated for application in the development of bio-compatible self-healing materials.
590 $a School code: 0090.
650 4 $a Chemistry, Polymer. $3 1018428
650 4 $a Engineering, Materials Science. $3 1017759
690 $a 0495
690 $a 0794
710 2 $a University of Illinois at Urbana-Champaign. $3 626646
773 0 $t Dissertation Abstracts International $g 68-11B.
790 $a 0090
790 1 0 $a Moore, Jeffrey S., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3290429