文献类型：期刊文献

英文题名：A direct method for the vulcanization of acrylate rubber through in situ coordination crosslinking

作者：Mou, Haiyan[1]; Xue, Pengfei[1]; Shi, Qingfeng[1]; Guo, Weihong[1]; Wu, Chifei[1]; Fu, Xiaowei[1]

机构：[1] Polymer Alloy Laboratory, School of Materials Science and Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China

年份：2012

卷号：44

期号：10

起止页码：1064

外文期刊名：Polymer Journal

收录：EI(收录号：20124915743016)

语种：英文

外文关键词：Rubber - Sulfur compounds - Dynamic mechanical analysis - Electron spin resonance spectroscopy - Crosslinking - Esters - Magnetic moments - Fourier transform infrared spectroscopy - Scanning electron microscopy - Vulcanization

摘要：In this work, a straightforward method of vulcanizing acrylate rubber (AR) was explored via the introduction of in situ coordination crosslinking. An inorganic metal salt, copper sulfate (CuSO 4), was mechanically mixed with AR and heat pressed to prepare a novel crosslinkable AR/CuSO 4 composite. The determination of the coordination bonding between the ester groups of AR and copper (II) ions was performed with Fourier transform infrared spectroscopy based on the red shifts of the ester group absorption bands and the disappearance of the coordinated sulfate absorption bands, as well as by electron spin resonance based on the changes in the g-factor of copper (II). The crosslinking procedure of the composite was investigated through dynamic mechanical analysis. In addition, the extent of the crosslinking of the AR/CuSO 4 composites was evaluated by observing the swelling behaviors. Scanning electron microscopy was used to investigate the morphology of the composite. The vulcanizates exhibited improved physical properties with high elongation at break due to exchange reaction between the ester groups of AR and CuSO 4. ? 2012 The Society of Polymer Science, Japan (SPSJ) All rights reserved.