The Synthesis and Feature Rearch on the Thermosensitive Hydrogels (NIPA-co-AAm)

Xiu Fang Zhu; Ming Yang; Hong Xia Zhang; Yu Jing Nie

doi:10.4028/www.scientific.net/MSF.704-705.913

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HomeMaterials Science ForumMaterials Science Forum Vols. 704-705The Synthesis and Feature Rearch on the...

The Synthesis and Feature Rearch on the Thermosensitive Hydrogels (NIPA-co-AAm)

Abstract:

The polymer was prepared by the radical copolymerization. Tensile tests were conducted on a N-isopropylacrylamide (NIPA)-acrylamide (AAm) comonomer gel sensitive to variations in environmental temperature. and salinity Mechanical properties (Young’s modulus) were determined at different levels of swelling equilibrium. Shifts in the mechanical properties were observed between samples tested in the swollen and unswollen states. Additional tests were conducted to determine the effect of salinity on the LCST. Increasing the salinity from 0M to 1.0M resulted in a decrease in LCST (55centigrade to 28centigrade).It is found that adjustment of the salinity of the environment solution is an effective method of controlling the LCST of the gel. Keywords: Salinity, hydrogels, mechanical properties

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Materials Science Forum (Volumes 704-705)

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913-917

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https://doi.org/10.4028/www.scientific.net/MSF.704-705.913

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December 2011

Authors:

Xiu Fang Zhu, Ming Yang, Hong Xia Zhang, Yu Jing Nie

Keywords:

Hydrogel, Salinity

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