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Synthesis and properties of poly(ethylene oxide)‐grafted polyethylene copolymer and terpolymer
Author(s) -
Mohajery Shabnam,
Moghadam Peyman Najafi,
Rahmani Sohrab,
Entezami Ali Akbar
Publication year - 2010
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1401
Subject(s) - copolymer , materials science , polymer chemistry , ethylene glycol , ethylene oxide , polyethylene , polymer , melting point , ethylene , polyethylene glycol , phase (matter) , chemical engineering , organic chemistry , composite material , chemistry , catalysis , engineering
Abstract A series of graft copolymers were synthesized based on ethylene‐co‐ m,p ‐methylstyrene (EMS) (backbone copolymer), ethylene‐1‐hexene‐ m,p ‐methylstyrene (EHMS) (backbone terpolymer), and polyethylene glycol monomethyl ethers (PEGM) (grafts) in this study. The PEGMs with molecular weights of 750 and 2000 were used. The chemical composition of the graft copolymers was analyzed by NMR and DSC measurements. The graft copolymers exhibited a phase‐separated morphology with the backbone and the methoxy polyethylene glycol (MPEG) grafts forming separate crystalline phases. The MPEG phase had a melting temperature lower than the corresponding MPEG homopolymer, as determined by DSC. The melting point of the crystalline phase formed by the EMS and EHMS main chains was lower than that of pure polymer backbone. Copyright © 2009 John Wiley & Sons, Ltd.