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Licensed Unlicensed Requires Authentication Published by De Gruyter September 24, 2014

Nano and microstructures of SEBS/PP/wax blend membranes: SAXS and WAXS analyses

Kinyas Polat EMAIL logo , Ilghar Orujalipoor , Semra İde and Murat Şen

Abstract

Elastomeric polymers are interesting materials for polymer chemists and other novel material designers in the field of industrial and technological science, because of their physical (mechanical, thermal and electrical) properties. In the context of this study, 35% and 68% styrene-(ethylene-butylene)-styrene (SEBS) containing mixtures, namely SEBS35 and SEBS68, were focused on among of our novel synthesized SEBS blends which compose of microstructures. The structural changes, globular contents (globules) and uniformities of the samples at nanoscale and microscale were investigated by small angle X-ray scattering (SAXS) and wide angle X-ray scattering (WAXS) methods. The obtained structural results were compared with a calculation of the scattering profiles using a convenient geometrical model defined by lamellar ordered and elliptical polydispersed cylindrical globules, which have approximately the same lengths in the range of 203.6–205.2 nm. Separation lengths and wide distributions of the cylindrical globules with elliptic cross sections and their lamellar stackings were also determined. At the end of the study, it was indicated that the microstructures of these newly designed polymers may be described by fractal structures composed of polydisperse elliptical cylinders.


Corresponding author: Kinyas Polat, Polymer Chemistry Division, Department of Chemistry, Hacettepe University, Beytepe 06800, Ankara, Turkey, e-mail:

Acknowledgments

The authors gratefully acknowledge the financial support of TUBITAK Research Project TBAG-112T628 and Hacettepe University 010D05601.001 project.

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Received: 2014-4-11
Accepted: 2014-8-9
Published Online: 2014-9-24
Published in Print: 2015-3-1

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