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Effect of Cross-Linker Types on Properties of Cross-Linked Poly (Acrylic Acid) As the Superabsorbent
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DOR
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20.1001.2.9919199705.1399.11.1.491.6
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نویسنده
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- - ,- - ,- - ,- -
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منبع
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كنگره مهندسي شيمي - 1399 - دوره : 11 - یازدهمین کنگره بین المللی مهندسی شیمی - کد همایش: 99191-99705
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چکیده
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The monomer of acrylic acid (aa) was polymerized in presence of two crosslinking agent# polymerization was performed in aqueous xanthan solution# n, n′-hexane-1, 6-dilbisprop-2-enamide (ms) or 1,4-butandioldimethacrylate (bdod) was used as the cross-linking agent in various ratio of ms/bdod (100/0, 75/25, 50/50, 25/75, and 0/100)# polymerization was performed in an aqueous xanthan solution (1% wt)# prepared crosslinker and semi-interpenetrating polymer networks (semi-ipns) evaluated by fourier transform infrared (ft-ir), proton nuclear magnetic resonance spectroscopy (1h nmr), x-ray diffraction (xrd) and thermogravimetric (tga) analyses# the results of tga showed that the thermal resistance of hydrogels increased with increasing bdod to ms ratio in content of crosslinker# in addition, the results of the swelling test showed that with increasing ms content in the cross-linker, the swelling rate increased in various ph of environment# but the swelling ratio is higher in alkaline environments to other phs for all samples# the behavioral differences in all tests can be due to the urethane groups in the cross-linker structure# the resulting hydrogels can be used in tissue engineering, dye and effluent absorption, drug delivery and synthetic cartilage#
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کلیدواژه
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Poly (Acrylic Acid) (Paa) ,Xanthan Gum (Xg) ,Superabsorbent ,Semi-Interpenetrating Polymer Network (Semi-Ipn) ,Hydrogel
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آدرس
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University Of Tehran, Iran, University Of Tehran, Iran, University Of Tehran, Iran, University Of Tehran, Iran
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Authors
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