Analysis of the physical and mechanical properties of poly(1-butene) thermoplastic elastomer by the 13C-NMR and DSC methods

Abstract

In this paper, we compare the physical and mechanical properties of poly(1-butene) thermoplastic elastomer (PB-TPE), which was prepared by supported titanium catalyst using solution polymerization (S-PB) and bulk polymerization (B-PB). The S-PB possesses higher tensile strength and elongation at break than the B-PB. Through the analysis of the microstructure with 13C-NMR spectra and thermal property with DSC, it is found that S-PB had more crystallizable block in the main chain that leads to higher crystallinity than B-PB.