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Adjustable wettability of methyl methacrylate modified ramie fiber
Author(s) -
Liu ZhaoTie,
Sun Chang'an,
Liu ZhongWen,
Lu Jian
Publication year - 2008
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.28259
Subject(s) - ramie , materials science , thermogravimetric analysis , methyl methacrylate , contact angle , fiber , polymer chemistry , methacrylate , atom transfer radical polymerization , polymerization , gel permeation chromatography , wetting , poly(methyl methacrylate) , fourier transform infrared spectroscopy , chemical engineering , radical polymerization , composite material , polymer , engineering
The surface hydrophobicity/hydrophilicity of ramie fiber was regulated through the atom transfer radical polymerization of methyl methacrylate from initiators immobilized on the fiber. The optimal reaction conditions for preparing the macroinitiated ramie fiber were determined to be a temperature of 60°C and a reaction time of 24 h. The grafted copolymers were characterized by Fourier transform infrared spectroscopy, X‐ray diffraction, scanning electron microscopy, energy‐dispersive analysis of X‐rays, gel permeation chromatography, and thermogravimetric analysis. The results indicate that poly (methyl methacrylate) was covalently bonded onto the surface of the ramie fiber, and the polymerization of methyl methacrylate was a living/controlled process under the investigated conditions. The results of the contact angle measurements indicate that the wettability of the ramie fiber could be widely regulated by control of the grafted ratios of poly(methyl methacrylate) from 26 to 33 wt %. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008