Citation: DUAN Yuanshou, JIA Fengxia, WANG Shuo, LI Lifang. Synthesis and Thermosensitivity of Poly(N-isopropylacrylamide)/Hydrotalite Hydrogel[J]. Chinese Journal of Applied Chemistry, ;2018, 35(1): 102-108. doi: 10.11944/j.issn.1000-0518.2018.01.170034 shu

Synthesis and Thermosensitivity of Poly(N-isopropylacrylamide)/Hydrotalite Hydrogel

a.
College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shangdong 271018, China
b.
Building Materials Quality Supervision and Inspection Center of Township Enterprises Shandong Province, Taian, Shandong 271000, China

Corresponding author: LI Lifang, fangll@sdau.edu.cn
Received Date: 15 February 2017
Revised Date: 19 May 2017
Accepted Date: 19 May 2017

Fund Project: Science and Technology Development Plan of Shandong Province 2013GZX20109Supported by the Science and Technology Development Plan of Shandong Province(No.2013GZX20109)

Figures(7)

To obtain thermosensitive and injectable hydrogels, hydrotalcite(LDHs) and N-isopropylacrylamide(NIPA) were used to synthesize a series of PNIPA/LDHs hydrogels by free radical polymerization. The properties of PNIPA/LDHs hydrogels were characterized by thermal gravimetric analyzer(TGA), differential scanning calorimetry(DSC) and scanning electronic microscopy(SEM). The results show that the synthesized hydrogels have a reversible sol-gel transformation around 33℃. LDHs mass ratios have no influence on the temperature and time of gelation. The thermal stability of PNIPA/LDHs is remarkably increased by the addition of LDHs. The endothermic peak of PNIPA/LDHs hydrogels increases with the increase of LDHs mass ratios and the molar ratio of Mg to Al. PNIPA/LDHs hydrogels have porous structures.
- poly-N-isopropylacrylamide,
- layered double hydroxides,
- hydrogel,
- thermosensitivity
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沈阳化工大学材料科学与工程学院沈阳 110142