Journal
JOURNAL OF CHEMICAL SCIENCES
Volume 127, Issue 1, Pages 19-23Publisher
INDIAN ACAD SCIENCES
DOI: 10.1007/s12039-014-0746-1
Keywords
Hydrogel; hectorite; nanocomposite; microemulsion polymerization
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Funding
- PetroChina Innovation Foundation, China [2012D-5006-0212]
- Sichuan Provincial Science & Technology Pillar Program, China [2013GZ0149, 2014GZX0010]
- Opening fund of State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, China [SKLGP2012K004]
- Sichuan youth science and technology innovation research team funding scheme, China [2013TD0005]
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A novel hectorite/poly(AM/IA)nanocomposite hydrogel was synthesized by inverse microemulsion polymerization. The influence of hectorite amount on water absorbency rate, gel strength and shear-resistance was investigated. Dynamic viscoelasticity behaviour of the nanocomposite hydrogels was also studied. The nanocomposite hydrogels showed suitable water absorbency and shear-resistance, high gel strength, solid-like behaviour in the whole oscillation frequency region and enhanced viscoelastic behaviours under high stress. TEM indicated that the as-synthesized hydrogel particles were regular and spherical in shape with an average particle size of 43 nm in the range of 30-65 nm.
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