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Augmentation of performance properties of maleated SEBS/TPU blends through reactive blending
Author(s) -
Anagha M. G.,
Naskar Kinsuk
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48727
Subject(s) - maleic anhydride , materials science , differential scanning calorimetry , thermoplastic elastomer , copolymer , fourier transform infrared spectroscopy , ultimate tensile strength , composite material , thermoplastic polyurethane , polymer blend , natural rubber , isocyanate , scanning electron microscope , thermoplastic , morphology (biology) , polymer chemistry , polyurethane , elastomer , chemical engineering , polymer , engineering , thermodynamics , physics , genetics , biology
Meticulous investigation of reactive blending of maleic anhydride grafted styrene–ethylene–butylene–styrene (SEBS‐g‐MA) and thermoplastic polyurethane (TPU) is carried out to achieve systems with controllable morphology and superior mechanical properties. Two types of SEBS‐g‐MA (abbreviated as M1, M2) with different maleic anhydride content were used to separately blend with TPU. Formation of imide group from the interaction of isocyanate and maleic anhydride predicted from the plausible reaction scheme was confirmed through Fourier transform infrared spectroscopy. High tensile strength of the blends along with appreciable elongation at break was witnessed. Morphology analyses using scanning electron microscopy and atomic force microscopy exposed a vivid and homogenous droplet morphology in all the blends presumably due to in situ formation of a suitable copolymer at the interface. Differential scanning calorimetry was used to pursue the thermal characteristics of the blends. Melt‐rheological behavior of the blends was examined using a rubber process analyzer. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48727.