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Infrared spectroscopy on new multiphase thermoplastic elastomers based on hydrogen bond complexes ‐ temperature dependence and orientation behaviour
Author(s) -
Abetz Volker,
Hilger Christopher,
Stadler Reimund
Publication year - 1991
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19910520112
Subject(s) - materials science , thermoplastic elastomer , hydrogen bond , polybutadiene , elastomer , infrared spectroscopy , fourier transform infrared spectroscopy , supramolecular chemistry , thermoplastic , spectroscopy , composite material , dichroism , anisotropy , polymer chemistry , crystallography , molecule , polymer , chemistry , chemical engineering , crystal structure , organic chemistry , copolymer , optics , physics , quantum mechanics , engineering
The structure and deformation behaviour of a new class of thermoplastic elastomers is studied by temperature dependent infrared (IR) spectroscopy and by IR ‐ dichroism spectroscopy. The thermoplastic elastomer is based on polybutadiene with statistically distributed side groups which form an anisotropic supramolecular structure via hydrogen bonds. Changes in the IR spectra at elevated temperatures are related to the melting of the ordered structure. The uniaxial deformation behaviour is studied by linear dichroism Fourier‐transform (FT)‐IR spectroscopy. A deformation model is developed which accounts for the major experimental results: while the polybutadiene segments behave as flexible chains with characteristic rubberlike elasticity the polar units within the supramolecular structure show an orientation behaviour characteristic for rodlike molecules.