An insight into the interaction between functionalized thermoplastic elastomer and layered double hydroxides through rheological investigations. (15th April 2018)

• Record Type: Journal Article
• Authors: Arrigo, Rossella; Dintcheva, Nadka Tzankova; Tarantino, Giuseppe; Passaglia, Elisa; Coiai, Serena; Cicogna, Francesca; Filippi, Sara; Nasillo, Giorgio; Martino, Delia Chillura
• Is Part Of: Composites. Number 139(2018)
• Page Start: 47
• Page End: 54
• Publication Date: 2018-04-15
• Subjects: Polymer-matrix composites (PMCs) -- Nano-structures -- Rheological properties -- Physical properties; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2017.11.060
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Nanocomposites based on maleated poly(styrene-(ethylene- co -butylene)-styrene) copolymer (SEBSgMA) and organo-modified layered double hydroxide (OLDH) have been formulated with the aim to investigate the effects of interfacial interactions between the grafted maleic anhydride groups of the copolymer and the OLDH nanolayers on the rheological properties of nanocomposites. The spectroscopic analysis indicates the establishment of specific polymer/nanofiller interactions, whose extent has been highlighted through morphological and rheological investigations. Specifically, oscillatory melt rheology and shear relaxation tests have been considered in order to deeply investigate the interfacial bridging interactions. Obtained results highlight that SEBSgMA-based nanocomposites containing a high amount of OLDH show solid-like rheological behavior, quite similar to that of crosslinked polymers, attributable to the formation of a gel-like structure.