Gamma irradiation effect on polystyrene + SBR blends: morphology and microhardness

W. Brostow; V. M. Castańo; G. Martinez-Barrera

Published : 2022-09-01

Vol. 50 No. 9 (2005)

Gamma irradiation effect on polystyrene + SBR blends: morphology and microhardness

W. Brostow V. M. Castańo G. Martinez-Barrera

Abstract

Blends with 0, 5, 10 and 13 weight % of styrene/butadiene (SBR) copolymer embedded in a rigid polystyrene matrix were prepared. Microhardness was determined and morphology evaluated by scanning electron microscopy (SEM) before and after gamma irradiation. We relate the morphology to chemical structure and to composition of the SBRs as well as to irradiation dosages. We also connect the microhardness to the impact strength determined previously.

Keywords

mieszaniny polimerowe ; polistyren ; kopolimer styren-butadien ; mikrotwardość ; udarność ; promieniowanie g ; skaningowa mikroskopia elektronowa ; morfologia powierzchni polymer blends ; polystyrene ; SBR ; microhardness ; impact behavior ; gamma irradiation ; SEM ; surface morphology

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Brostow, W., Castańo, V. M., & Martinez-Barrera, G. (2022). Gamma irradiation effect on polystyrene + SBR blends: morphology and microhardness. Polimery, 50(9), 657–662. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/1673

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W. Brostow brostow@unt.edu

Affiliation
Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science & Engineering, University of North Texas, Denton, TX 76203-5310, USA

V. M. Castańo

Affiliation
Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science & Engineering, University of North Texas, Denton, TX 76203-5310, USA

G. Martinez-Barrera

Affiliation
Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science & Engineering, University of North Texas, Denton, TX 76203-5310, USA