CHCO2H. Acrylic fibers reminiscent of Orlon are made by polymerizing a derivative of acrylic acid often known as acrylonitrile. Other acrylic polymers are formed by polymerizing an ester of this acid, resembling methyl acrylate. One in every of a very powerful acrylic polymers is poly(methyl methacrylate), or PMMA, which is offered under the trade names Lucite and Plexiglass. PMMA is a lightweight, crystal-clear, superabsorber (www.zeldaclassic.com) glasslike polymer used in airplane home windows, taillight lenses, and mild fixtures. Because it is difficult, stable to sunlight, and intensely durable, PMMA is also used to make the reflectors embedded between lanes of interstate highways.
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The dried powdered resin (0.1 g) was immersed in 500 mL distilled water and 0.9% physiological saline solution, respectively. The water-swollen gel was filtered by a sieve after soaking in a single day and then weighted. The water-holding capability was calculated by the following equation:the place is the weight of water-swollen gel, is the load of dried sample, and is the water absorbing capability. Figure 1 shows the IR spectra of CMC and SAP.
Tramfloc 1000 Series is a variety of superabsorbent anionic polyacrylamide polymers. They’re crosslinked copolymers of acrylamide and potassium acrylate which are water insoluble. The polymer consists of a set of polymeric chains which can be parallel to one another and repeatedly linked to one another by cross-linking agents, thus forming a network.