Diarylbibenzofuranone-Based Dynamic Covalent Polymer Gels Prepared via Radical Polymerization and Subsequent Polymer Reaction

Gels

Keiichi Imato¹  Masamichi Nishihara²  Atsushi Irie¹  Atsushi Takahara¹  Hideyuki Otsuka¹ 

[1]Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

[2] E-Mails:

[3]Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

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关键词: self-healing;    dynamic covalent chemistry;    gels;    radical polymerization;    polymer reaction;   

DOI  :  10.3390/gels1010058

来源: mdpi

【 摘 要 】

Diarylbibenzofuranone (DABBF) is a dynamic covalent bonding unit, which is in equilibrium with the corresponding radicals at room temperature, and polymers with DABBF linkages show notable properties such as self-healing. The preparation routes have been strictly limited, however, and no polymer with the linkages has been synthesized via radical polymerization because of the strong antioxidant activity of DABBF. Here we present a new method to prepare DABBF-containing polymers via radical polymerization of the precursor, arylbenzofuranone (ABF), and subsequent polymer reaction, dimerization of ABF units in the linear polymers. Polymer gels cross-linked by DABBF linkages were obtained against the relatively strong antioxidant activity of ABF and showed dynamic network reorganization at room temperature.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.