TY  - JOUR
AB  - Stimuli-sensitive poly (N-isopropylacrylamide-co-sodium acrylate) [poly (NiPAAm-co-SA)] hydrogels are prepared by free radical polymerization of N-isopropylacrylamide (NiPAAm) and sodium acrylate (SA) using N, N'-methylene bisacrylamide (BIS) as a crosslinking agent. The effects of SA content, crosslinking agent concentration and the pre-gel solution concentration on the swelling behavior of poly (NiPAAm-co-SA) hydrogel are investigated systematically. The results indicate that the swelling capacities increase with an increase in the amount of hydrophilic poly (sodium acrylate) anionic units, and thermo-sensitivity is weakened simultaneously. The effect of the pre-gel solution concentration on the swellabilities of poly (NiPAAm-co-SA) is more than that of the crosslinking agent concentration. Furthermore, the pH-sensitivity of the networks is also investigated, and it is found that the swelling behavior of poly (NiPAAm-co-SA) hydrogels obviously improves when the pH value is 5.
VL  - 13
IS  - 2
SN  - 1560-6074
DO  - 10.1108/RJTA-13-02-2009-B001
UR  - https://doi.org/10.1108/RJTA-13-02-2009-B001
AU  - Huang He
AU  - Mao Zhi-Ping
AU  - Yu Wei-Dong
PY  - 2009
Y1  - 2009/01/01
TI  - Swelling Behavior of Stimuli-Sensitive Hydrogels Based on N-Isopropylacrylamide and Sodium Acrylate Copolymer
T2  - Research Journal of Textile and Apparel
PB  - Emerald Group Publishing Limited
SP  - 1
EP  - 8
Y2  - 2024/04/27
ER  -