Affiliation:
1. Department of Physical Chemistry, University of Duisburg-Essen, D 45117 Essen, Germany
Abstract
This communication outlines the potential of variable-temperature Fourier transform near infrared (FT-NIR) spectroscopy to study in situ the anisotropy induced in polymers by mechanical deformation. For this purpose, a series of poly(dimethylsiloxane) (PDMS)/polycarbonate (PC) copolymers with varying compositions and block lengths were investigated by simultaneous mechanical and Fourier transform near infrared (FT-NIR) spectroscopic, so-called rheo-optical, measurements during cyclic elongation-recovery procedures between +22°C and −55°C. Depending on the composition and block lengths of the block copolymers, different orientation and recovery phenomena were observed for the hard (PC) and soft (PDMS) segments and, for the first time, strain-induced crystallisation of the PDMS-segments was derived from on-line FT-NIR spectroscopic measurements at −55°C.
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. Vibrational Spectroscopy;Reference Module in Materials Science and Materials Engineering;2016
2. Vibrational Spectroscopy;Polymer Science: A Comprehensive Reference;2012
3. Siloxane modification of polycarbonate for superior flow and impact toughness;Polymer;2010-04