نوع مقاله : تالیفی
نویسندگان
1 دانشجو پژوهشگاه پلیمر و پتروشیمی ایران
2 عضو هیئت علمی پژوهشگاه پلیمر و پتروشیمی ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Polymer modification technique is a valuable synthetic approach which leads to
modified polymers with unique composition, structure, and properties that cannot
be readily achieved by direct polymerization of monomers. Since 1990, polymer
modification technique has become a most important method for improving the properties
of polymers and extending the range of their application. Nowadays, the modified
polymers such as cellulose and poly acrylic acid are available on a commercial scale in
the world. Hydrophobically modified polymers (HMPs) have attracted a great deal of
interest because of their unusual rheological properties.These polymers consist of watersoluble
hydrophilic backbones and a small amount (typically < 2-5 mol%) of covalently
bonded hydrophobic moieties called "stickers". The molecular architecture as well as the
characteristics of the hydrophilic chain and stickers can vary widely. Therefore, the diverse
structural architectures of these modified polymers (random, block or hydrophobically endcapped)
produce diverse physicochemical properties, which lead to useful applications in
pharmaceutics, dispersants, thickening agents, cosmetics and oil recovery.
کلیدواژهها [English]
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