Preparation of thermoresponsive nanosheets exhibiting phase transitions in water via surface modification of layered perovskite nanosheets with poly(N-isopropylacrylamide) (PNIPAAm)

Naokazu Idota, Satoshi Fukuda, Takehiko Tsukahara, Yoshiyuki Sugahara

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    Thermoresponsive inorganic-organic hybrid nanosheets were prepared by surface modification of layered perovskite HLaNb2O7·xH2O (HLaNb) wi th poly(N-isopropylacrylamide) (PNIPAAm) through surface-initiated atom transfer radical polymerization (SI-ATRP). The PNIPAAm-modified HLaNb could be exf oliated into nanosheets, which had a plate-like morphology with a thickness of ca. 25 nm. The aqueous suspension of the PNIPAAm-modified nanosheets in water exhibited phase transitions with increases in temperature to above 34°C. The nanosheets did not form precipitates when dispersed in water, even though the modified polymer chains became hydrophobic at high temperatures.

    Original languageEnglish
    Pages (from-to)203-205
    Number of pages3
    JournalChemistry Letters
    Volume44
    Issue number2
    DOIs
    Publication statusPublished - 2015

    Fingerprint

    Nanosheets
    Surface treatment
    Phase transitions
    Water
    Atom transfer radical polymerization
    Precipitates
    Suspensions
    Polymers
    Temperature
    perovskite
    poly-N-isopropylacrylamide

    ASJC Scopus subject areas

    • Chemistry(all)

    Cite this

    Preparation of thermoresponsive nanosheets exhibiting phase transitions in water via surface modification of layered perovskite nanosheets with poly(N-isopropylacrylamide) (PNIPAAm). / Idota, Naokazu; Fukuda, Satoshi; Tsukahara, Takehiko; Sugahara, Yoshiyuki.

    In: Chemistry Letters, Vol. 44, No. 2, 2015, p. 203-205.

    Research output: Contribution to journalArticle

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