Polydimethylsiloxane-Based Self-Healing Materials

Polydimethylsiloxane‐based self‐healing is achieved through the tin‐catalyzed polycondensation of phase‐separated droplets. The catalyst is released into the crack plane when microcapsules containing a tin compound are ruptured by the advancing crack (see figure). This system greatly extends the cap...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2006-04, Vol.18 (8), p.997-1000
Main Authors: Cho, S. H., Andersson, H. M., White, S. R., Sottos, N. R., Braun, P. V.
Format: Article
Language:English
Subjects:
Mechanical properties
Phase separation
Polydimethylsiloxane
Polymeric materials
Self-healing materials
Siloxanes
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Summary:Polydimethylsiloxane‐based self‐healing is achieved through the tin‐catalyzed polycondensation of phase‐separated droplets. The catalyst is released into the crack plane when microcapsules containing a tin compound are ruptured by the advancing crack (see figure). This system greatly extends the capability of self‐healing polymers by introducing a new, stable healing chemistry into a structural polymer matrix and may provide a route to self‐healing in harsh and corrosive environments.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200501814