An anhydride-terminated polystyrene (PSb-Anh) as a block copolymer precursor and a copolymer (PS-co-TMI) of styrene (St) and 3-isopropenyl-a,a-dimethylbenzene isocyanate (TMI) as a graft copolymer precursor are chosen to investigate the effect of the type of the copolymer precursor on its compatibilizing and stabilizing efficiency for polymer blends. Results show that during the melt blending of the PS and PA6, the addition of PS-bAnh dramatically decreases the size of the dispersed phase domains, irrespective of its molecular weight. This indicates that a diblock copolymer PS-block-PA6 (PS-b-PA6) is formed by a reaction between the terminal anhydride moiety of the PS-b-Anh and the terminal amine group of the PA6. When PS/PA6 (30/70) blends are annealed at 230 C for 15 min, their morphologies are much more stable in the presence of the PS-b-Anh block copolymer precursor than in the presence of the PS-co-TMI graft copolymer precursor.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.