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Synthesis and characterization of reversible and self-healable networks based on acylhydrazone groups

被引：49
作者：
Apostolides, Demetris E. [1 ]
Patrickios, Costas S. [1 ]
Leontidis, Epameinondas [1 ]
Kushnir, Michelle [2 ,3 ]
Wesdemiotis, Chrys [2 ,3 ]
机构：
[1] Univ Cyprus, Dept Chem, CY-1678 Nicosia, Cyprus
[2] Univ Akron, Dept Chem, Akron, OH 44325 USA
[3] Univ Akron, Integrated Biosci Program, Akron, OH 44325 USA
来源：
POLYMER INTERNATIONAL | 2014年 / 63卷 / 09期
基金：
美国国家科学基金会;
关键词：
dynamic polymers; reversible bonds; self-healing; polymer networks; acylhydrazone; AMPHIPHILIC MODEL CONETWORKS; RAFT RADICAL POLYMERIZATION; LINKED STAR POLYMERS; 2-(DIMETHYLAMINO)ETHYL METHACRYLATE; CO-NETWORKS; COMBINATION; COPOLYMERS; HYDROGELS; ACID;
D O I：
10.1002/pi.4724
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 [高分子化学与物理];
摘要：
A series of seven dynamic covalent networks based on pentaerythritol tetra(benzohydrazide) and 1,10-decanediol dibenzaldehyde were prepared in N, N-dimethylformamide (DMF). The equilibrium degree of swelling in DMF and the sol fraction displayed a minimum at or near the hydrazide-benzaldehyde stoichiometric ratio. The composition of the sol fraction changed according to the feed composition, with the dibenzaldehyde-rich preparations exhibiting extractables composed of star oligomers based on tetra(benzohydrazide) cores. Finally, network reversibility and self-healing were demonstrated in the presence of acid. (C) 2014 Society of Chemical Industry
引用
收藏
页码：1558 / 1565
页数：8
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