A self-healing PDMS elastomer based on acylhydrazone groups and the role of hydrogen bonds

	A self-healing PDMS elastomer based on acylhydrazone groups and the role of hydrogen bonds
	Zhang, Dong-Dong 1,2; Ruan, Ying-Bo 1,2; Zhang, Bao-Qing 1,2; Qiao, Xin 1; Deng, Guohua 3; Chen, Yongming 4; Liu, Chen-Yang 1,2
刊名	POLYMER
	2017-06-30
卷号	120 页码:189-196
关键词	Self-healing Pdms Elastomer Acylhydrazone Groups Hydrogen Bonds
英文摘要	A PDMS elastomer based on acylhydrazone groups with both acid- and heat-assisted self-healing properties was successfully prepared from tetra-acylhydrazine-terminated PDMS and tereph-thalaldehyde through solution casting. The good healing performance was obtained with catalytic acetic acid for 24 h at 25 degrees C or by annealing at 120 degrees C for 2 h. The elastomer exhibited a reversible transition near 80 degrees C observed by rheological measurements and variable-temperature FTIR, which corresponded to the dissociation and reconstruction of hydrogen bonds between acylhydrazone groups. Since the non-equimolar sample presented similar behaviors with the equimolar sample, it verifies that the reversible dissociation/reformation of hydrogen bonds dominates the heat-assisted self-healing process. This finding will enable better understanding of the contribution of hydrogen bonding interactions in acylhydrazone self-healing systems, thus promoting the development of self-healing bulk materials based on acylhydrazone groups. (C) 2017 Published by Elsevier Ltd.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38929]
专题	化学研究所_工程塑料实验室
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China 4.Sun Yat Sen Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Polymer Composite & Funct Mat, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Dong-Dong,Ruan, Ying-Bo,Zhang, Bao-Qing,et al. A self-healing PDMS elastomer based on acylhydrazone groups and the role of hydrogen bonds[J]. POLYMER,2017,120:189-196.
APA	Zhang, Dong-Dong.,Ruan, Ying-Bo.,Zhang, Bao-Qing.,Qiao, Xin.,Deng, Guohua.,...&Liu, Chen-Yang.(2017).A self-healing PDMS elastomer based on acylhydrazone groups and the role of hydrogen bonds.POLYMER,120,189-196.
MLA	Zhang, Dong-Dong,et al."A self-healing PDMS elastomer based on acylhydrazone groups and the role of hydrogen bonds".POLYMER 120(2017):189-196.