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Preparation of blends of poly(methyl methacrylate) copolymers with high glass transition temperatures and low hydrophilicity
Author(s) -
Wu PanPan,
Zhao DongMei,
Li LiXia,
Wang HaiSu,
Liu GuoDong
Publication year - 2013
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23502
Subject(s) - methacrylamide , materials science , glass transition , copolymer , methyl methacrylate , polymer chemistry , methacrylic acid , differential scanning calorimetry , methacrylate , poly(methyl methacrylate) , fourier transform infrared spectroscopy , chemical engineering , polymer , composite material , acrylamide , thermodynamics , physics , engineering
Poly(methyl methacrylate)‐based copolymers were prepared by solution copolymerization of methyl methacrylate (MMA) with methacrylamide (MAAM) or methacrylic acid (MAA) in dioxane. The blends of poly(methyl methacrylate‐ co ‐methacrylamide) (MMA‐MAAM) with poly(methyl methacrylate‐ co ‐methacrylic acid) (MMA‐MAA) were prepared by solution blending. The thermal properties of the blends were studied by differential scanning calorimetry. A large positive deviation in the glass transition temperature ( T g ) from the Fox equation was observed. The existence of strong hydrogen‐bonding interaction between the two copolymers was indicated based on the Kwei equation and conformed by Fourier transform infrared spectroscopy. The contact angle measurements showed that the hydrophilicity of the blends is lower than the corresponding copolymers. POLYM. ENG. SCI., 53:2370–2377, 2013. © 2013 Society of Plastics Engineers