Dynamic rheo‐optical characterization of a low‐density polyethylene/perdeuterated high‐density polyethylene blend by two‐dimensional step‐scan FTIR spectroscopy


Journal Article

Dynamic mechanical analysis coupled with polarized step‐scan FTIR transmission and two‐dimensional correlation analysis (2D FTIR) has been used to monitor the submolecular orientational responses of the components of a semicrystalline 50 : 50 blend of low‐density polyethylene (LDPE) and perdeuterated high‐density polyethylene (d*‐HDPE) to a small amplitude uniaxial 23.47 Hz sinusoidal mechanical strain. Perdeuteration of the HDPE component allowed the distinction of its response from that of the LDPE in the blend samples. The experiments were carried out at room temperature. Analysis of the data indicates that the crystalline parts of the two components reorient at different rates, with the functional groups of the high‐density portion reorienting faster, in general, than those of the LDPE in response to the mechanical strain. © 1993 John Wiley & Sons, Inc. Copyright © 1993 John Wiley & Sons, Inc.

Full Text

Duke Authors

Cited Authors

  • Gregoriou, VG; Noda, I; Dowrey, AE; Marcott, C; Chao, JL; Palmer, RA

Published Date

  • January 1, 1993

Published In

Volume / Issue

  • 31 / 12

Start / End Page

  • 1769 - 1777

Electronic International Standard Serial Number (EISSN)

  • 1099-0488

International Standard Serial Number (ISSN)

  • 0887-6266

Digital Object Identifier (DOI)

  • 10.1002/polb.1993.090311210

Citation Source

  • Scopus