wang-boronnitride-2018.pdf (2.66 MB)
Boron nitride nanosheets/PNIPAM hydrogels with improved thermo-responsive performance
journal contribution
posted on 2018-06-24, 00:00 authored by Shishan Xue, Yuanpeng Wu, Jiemin Wang, Meiling Guo, Dan LiuDan Liu, Weiwei LeiWeiwei LeiThermo-responsive hydrogel is an important smart material. However, its slow thermal response rate limits the scope of its applications. Boron nitride nanosheet-reinforced thermos-responsive hydrogels, which can be controlled by heating, were fabricated by in situ polymerization of N-isopropylacrylamide in the presence of boron nitride nanosheets. The hydrogels exhibit excellent thermo-responsiveness and much enhanced thermal response rate than that of pure poly(N-isopropylacrylamide) hydrogels. Interestingly, the hydrogels can be driven to move in aqueous solution by heating. Importantly, the composite hydrogel is hydrophilic at a temperature below lower critical solution temperature (LCST), while it is hydrophobic at a temperature above LCST. Therefore, it can be used for quick absorption and release of dyes and oils from water. All these properties demonstrate the potential of hydrogel composites for water purification and treatment.
History
Journal
MaterialsVolume
11Issue
7Article number
1069Pagination
1 - 9Publisher
MDPILocation
Basel, SwitzerlandPublisher DOI
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ISSN
1996-1944Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2018, the authorsUsage metrics
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thermal-responsivehydrogelboron nitride nanosheetspoly(N-isopropylacrylamide)Science & TechnologyPhysical SciencesTechnologyChemistry, PhysicalMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringPhysics, AppliedPhysics, Condensed MatterChemistryMaterials SciencePhysicsDRUG-DELIVERYFABRICATIONPOLYMERIZATIONEXFOLIATIONTEMPERATURESHEETS
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