Heterogeneity, Segmental and Hydrogen Bond Dynamics, and Aging of Supramolecular Self-Healing Rubber

Heterogeneity, Segmental and Hydrogen Bond Dynamics, and Aging of Supramolecular Self-Healing Rubber
复制标题

超分子自修复橡胶的异质性、链段和氢键动力学以及老化

DOI:
10.1021/ma400019m
复制
发表时间:
2013-02
期刊:
影响因子:
5.5
通讯作者:
Kay Saalwächter
Kay Saalwächter
中科院分区:
化学1区
文献类型:
--
作者:
Baohui Li;Filipe Furtado;Pingchuan Sun;Kay Saalwächter

文献摘要

参考文献

被引文献

相似文献

近年来,自修复材料由于其在机械损伤后具有潜在的自发自修复能力而受到越来越多的关注。在这里,我们专注于一种基于脂肪酸的超分子自修复橡胶,这是Leibler及其同事的工作。我们研究的异质网络结构和氢键动力学,以及其显着的老化性能,使用几种实验技术。核磁共振实验表明,橡胶基本上是一个双组分系统,与一个85%的分数的材料富含氢键结构和相关的脂肪族部分,经历一个玻璃化转变略低于环境温度,和另一个是由更多的移动的脂肪链。红外光谱中NH弯曲振动和CO伸缩振动对应的谱带的变化表明,橡胶中的水不仅起到增塑剂的作用,降低了主组分的玻璃化转变温度,而且还参与了氢键的变化。
In recent years, self-healing materials have attracted increasing attention due to their potentially spontaneous self-repairing ability after mechanical damage. Here, we focus on a supramolecular self-healing rubber based on fatty acids following the work of Leibler and co-workers. We study the heterogeneous network structure and hydrogen bond dynamics as well as its significant aging properties using several experimental techniques. NMR experiments reveal that the rubber is basically a two-component system, with a ∼85% fraction of material rich in hydrogen-bonded structures and associated aliphatic moieties, undergoing a glass transition just below ambient temperature, and the other one being comprised of more mobile aliphatic chains. Changes in the IR bands corresponding to the NH bending and CO stretching vibrations show that water in the rubber not only takes the role of a plasticizer, reducing the glass transition temperature of the main component, but also is involved in changes of the hydrogen-bond...
DOI: 10.1021/ma800739c
发表时间: 2008-07
期刊: Macromolecules
影响因子: 5.5
作者:
Atsushi Noro;Y. Matsushita;T. Lodge
通讯作者: Atsushi Noro;Y. Matsushita;T. Lodge
DOI: 10.1021/ja9016057
发表时间: 2009-07-08
影响因子: 15
作者:
Sagle, Laura B.;Zhang, Yanjie;Cremer, Paul S.
通讯作者: Cremer, Paul S.
DOI: 10.1021/ma052567b
发表时间: 2006-04
期刊: Macromolecules
影响因子: 5.5
作者:
K. Saalwächter;A. Heuer
通讯作者: K. Saalwächter;A. Heuer
DOI: 10.1021/ma051238g
发表时间: 2005-10
期刊: Macromolecules
影响因子: 5.5
作者:
K. Saalwächter;B. Herrero;M. López-Manchado
通讯作者: K. Saalwächter;B. Herrero;M. López-Manchado
DOI: 10.1021/ma020532v
发表时间: 2002-07-30
期刊: MACROMOLECULES
影响因子: 5.5
作者:
Fechete, R;Demco, DE;Blümich, B
通讯作者: Blümich, B