Development of Novel Thermally Responsible Separation Systems using Functional Polymers
نویسنده
چکیده
Stimuli−responsive polymers respond with large property changes to small physical or chemical stimuli. These functional polymers are known as “smart”, “intelligent”, “stimuli−responsive”, or “environmentally sensitive” polymers. They can take many forms: they may be dissolved in aqueous solution, adsorbed or grafted on aqueous−solid interfaces, or cross−linked in the form of hydrogels. Many different stimuli have been investigated, such as pH [1, 2], temperature [3−5], and light [5−7]. Typically, when a functional polymer’s critical response is stimulated, the polymer in aqueous solution will show a sudden onset of turbidity as it phase− separates; a surface−grafted functional polymer will collapse, converting the interface from hydrophilic to hydrophobic. These polymers have been widely investigated for drug−delivery systems [8, 9], cell culture substrates [10, 11], bioconjugates [12], and tissue engineering for regenerative medicine [13−15]. Focusing Review
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