Development of Layered Multiscale Porous Thin Films by Tuning Deposition Time and Molecular Weight of Polyelectrolytes

Jing Yu, Oishi Sanyal, Andrew P. Izbicki, Ilsoon Lee

    Research output: Contribution to journalArticle

    • 4 Citations

    Abstract

    This work focuses on the design of porous polymeric films with nano- and micro-sized pores existing in distinct zones. The porous thin films are fabricated by the post-treatment of layer-by-layer assembled poly(allylamine hydrochloride) (PAH)/poly(acrylic acid) (PAA) multilayers. In order to improve the processing efficiency, the deposition time is shortened to ≈10 s. It is found that fine porous structures can be created even by significantly reducing the processing time. The effect of using polyelectrolytes with widely different molecular weights is also studied. The pore size is increased by using high molecular weight PAH, while high molecular weight PAA minimizes the pore size to nanometer scale. Having gained a precise control over the pore size, layered multiscale porous thin films are further built up with either a microsized porous zone on top of a nanosized porous zone or vice versa.

    Original languageEnglish (US)
    Pages (from-to)1669-1674
    Number of pages6
    JournalMacromolecular Rapid Communications
    Volume36
    Issue number18
    DOIs
    StatePublished - Sep 1 2015

    Profile

    Molecular weight
    Bacillaceae
    Myxomycetes
    Thin films
    Polycyclic aromatic hydrocarbons
    Pore size
    Accessory Nerve
    Magnesium Deficiency
    Psychologic Desensitization
    Polyelectrolytes
    Acrylics
    Acids
    Periodontal Dressings
    Fusobacterium
    Blood Flow Velocity
    Micelles
    Tuning
    Polymer films
    Multilayers

    Keywords

    • deposition time
    • layer by layer
    • molecular weight
    • multi-scale porous films
    • polyelectrolytes
    • polymers

    ASJC Scopus subject areas

    • Organic Chemistry
    • Materials Chemistry
    • Polymers and Plastics

    Cite this

    Development of Layered Multiscale Porous Thin Films by Tuning Deposition Time and Molecular Weight of Polyelectrolytes. / Yu, Jing; Sanyal, Oishi; Izbicki, Andrew P.; Lee, Ilsoon.

    In: Macromolecular Rapid Communications, Vol. 36, No. 18, 01.09.2015, p. 1669-1674.

    Research output: Contribution to journalArticle

    Yu, Jing; Sanyal, Oishi; Izbicki, Andrew P.; Lee, Ilsoon / Development of Layered Multiscale Porous Thin Films by Tuning Deposition Time and Molecular Weight of Polyelectrolytes.

    In: Macromolecular Rapid Communications, Vol. 36, No. 18, 01.09.2015, p. 1669-1674.

    Research output: Contribution to journalArticle

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