Abstract

AbstractIn the past few decades, considerable attention has been paid to the thermoplastic elastomer (TPE). Among them, hydrogenated styrenic block copolymers (HSBCs) have attracted extensive interest because of outstanding ozone resistance, remarkable aging properties, and environmental friendliness. Therefore, theoretical and experimental investigations on the HSBCs/PP/oil composites have been reported many times, but the influence of molecular structure on the structure and properties of composites has yet to be identified. In this study, three HSBCs with different molecular structures were used as the research object to systematically study the effects of their molecular structural differences on the aggregate structure, microstructural, mechanical, and thermal properties of HSBCs/PP/oil composites. It was found thatthe content of side groups in the molecular chain was the main factor affecting the structure and performance of the HSBCs/PP/oil composites. This research can provide theoretical guidance for the molecular design and structural control of the new HSBC, so it has obvious theoretical significance and practical value.

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