Self‐healing supramolecular elastomers based on the multi‐hydrogen bonding of low‐molecular polydimethylsiloxanes: Synthesis and characterization | Zendy

Zhang Anqiang | Zendy; Yang Lin | Zendy; Lin Yaling | Zendy; Yan Lishan | Zendy; Lu Hecheng | Zendy; Wang Lianshi | Zendy

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Self‐healing supramolecular elastomers based on the multi‐hydrogen bonding of low‐molecular polydimethylsiloxanes: Synthesis and characterization

Author(s) -

Zhang Anqiang,

Yang Lin,

Lin Yaling,

Yan Lishan,

Lu Hecheng,

Wang Lianshi

Publication year - 2013

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.38832

Subject(s) - polydimethylsiloxane , supramolecular chemistry , polymer chemistry , differential scanning calorimetry , materials science , gel permeation chromatography , elastomer , glass transition , supramolecular polymers , telechelic polymer , permeation , fourier transform infrared spectroscopy , polymer , end group , chemical engineering , chemistry , copolymer , composite material , membrane , organic chemistry , molecule , biochemistry , physics , engineering , thermodynamics

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, 1 H‐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

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