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Article: Grafting of glycidyl methacrylate onto Swift-Nickel-Ions irradiated polypropylene films using chemical initiator.(Report)
- Article from:
- Polymer Engineering and Science
- Article date:
- May 1, 2009
- Author:
CopyrightCOPYRIGHT 2009 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
Polypropylene (PP) is one of the widely used commodity thermoplastics. However, it has limitations due to its chemically inert and hydrophobic nature (1). To upgrade its properties, it needs to be made more hydrophilic in nature by graft copolymerization. Glycidyl methacrylate (GMA) is a bifunctional monomer containing an unsaturated group together with a highly electrophilic epoxide moiety.
Grafting is a process by which chemical groups are attached by covalent bonds to a polymer backbone, usually via an aliphatic carbon atom. Grafting polymerization can be initiated by many methods, such as UV light, [gamma] rays, plasma, and chemicals. ...
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Article: The Shi'a-Sunni divide: myths and reality
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... ... region. "It is, rather, old feuds between Shi'a and Sunni which will forge attitudes ... writes Vali Nasr in his book, "The Shi'a Revival." As a consequence, argues ... Hizbullah can be explained as a reawakening of Shi'a identity. By the same token Saudi Arabia ...
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