We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Self-healing supramolecular elastomers based on the multi-hydrogen bonding of low-molecular polydimethylsiloxanes: Synthesis and characterization.
- Authors
Zhang, Anqiang; Yang, Lin; Lin, Yaling; Yan, Lishan; Lu, HechENg; Wang, Lianshi
- Abstract
Novel self-healing supramolecular elastomers based on polydimethylsiloxanes (SESi) were synthesized from a mixture of polydimethylsiloxanes derivers with single, di-, or tri-carboxylic acid groups (PDMS-COOH x, where x = 1, 2, and 3, respectively), diethylene triamine, and urea with a two-stage procedure. The reactions and the final products were tracked, characterized, and confirmed by Fourier transform infrared spectroscopy, 1H-NMR, differential scanning calorimetry, dynamic mechanical analysis, and gel permeation chromatography. Compared with a supramolecular rubber based on dimer acid (reported previously) with a similar synthesis procedure, the SESi showed a lower glass-transition temperature of about −113°C for the softer chain of polydimethylsiloxane and showed real rubberlike elastic behavior and self-healing properties at room temperature or even lower temperatures. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
- Subjects
SUPRAMOLECULAR polymers synthesis; ELASTOMERS; SELF-healing materials; HYDROGEN bonding; DIMETHYLPOLYSILOXANES; FOURIER transform infrared spectroscopy; DIFFERENTIAL scanning calorimetry; GEL permeation chromatography
- Publication
Journal of Applied Polymer Science, 2013, Vol 129, Issue 5, p2435
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.38832