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题名: Dynamic Cross-Links to Facilitate Recyclable Polybutadiene Elastomer with Excellent Toughness and Stretchability
作者: Wang, Dong1, 2; Zhang, Huan1, 2; Cheng, Beichen1; Qian, Zhenchao1, 2; Liu, Wenxing1, 2; Zhao, Ning1; Xu, Jian1
关键词: elastomers ; ionic hydrogen bond ; polybutadiene ; recyclable ; stretchability ; toughness
刊名: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
发表日期: 2016-05-15
卷: 54, 期:10, 页:1357-1366
收录类别: SCI
英文摘要: A facile cross-linking strategy of using small molecules as physcial crosslinkers to facilitate recyclable polybutadiene (PB) elastomer with excellent toughness and stretchability is demonstrated. Carboxylic acid groups were incorporated along the PB backbone via thiol-ene reaction, and then the polymer can be cross-linked by ionic hydrogen bonds between the carboxylic acid groups from PB and the amine groups of the cross-linkers. The ionic hydrogen bonds can dynamiclly break and reconstruct upon deformation, thus endowing the resultant polymer with not only high toughness and stretchability (similar to 1800%), but also good self-recovery and enhanced damping properties. Remarkably, the dynamically cross-linked PB elastomer can be thermally recycled owing to the thermal reversibility of the ionic hydrogen bonds and the mechanical properties can be largely recovered after reprocessing. (C) 2015 Wiley Periodicals, Inc.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35971
Appears in Collections:高分子物理与化学实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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