• Title/Summary/Keyword: thermoresponsive nanocomposite

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Synthesis of Thermoresponsive Poly (N-isopropylacrylamide)/Clay Nanocomposites (열응답성 Poly(N-isopropylacrylamide)/Clay 나노복합재료의 합성)

  • 김정필;유성구;배광수;서길수
    • Polymer(Korea)
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    • v.25 no.2
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    • pp.263-269
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    • 2001

  • MAPTAC-MMT was prepared by exchanging the mineral cation (sodium montmorillonite) with 3-(methacryloyl amino) propyltrimethyl ammonium chloride, thus rendering the mineral organophilic and forming polymerizable moieties directly bonded to the surface of montmorillonite (MMT). Thermoresponsive nanocomposites (PNIPAM-MMT) were synthesized by polymerization of N-isopropyl acrylamide in an aqueous suspension of MAPTAC-MMT at room temperature. Thermoresponsive nanocomposites exhibited a low critical solution temperature (LCST) similar to unmodified poly(N-isopropyl acrylamide) (PNIPAM). The LCST of thermoresponsive nanocomposites decreased in proportion to the amount of MAPTAC-MMT. TGA results showed that the thermal stability of thermoresponsive nanocomposites was improved compared to PNIPAM itself the thermoresponsive polymer.

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