Ordering pH-Responsive Polyelectrolyte-Grafted Nanoparticles in a Flow Coating Process

Chongfeng Zhang; Thomas Carlson; Siyang Yang; Pinar Akcora

doi:10.1002/admi.201701318

Ordering pH-Responsive Polyelectrolyte-Grafted Nanoparticles in a Flow Coating Process

Chongfeng Zhang
, Thomas Carlson
, Siyang Yang
, Pinar Akcora

Department of Chemical Engineering and Materials Science

Stevens Institute of Technology

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The effects of nanoscale particle interactions on deposition patterns in the flow coating process are investigated using pH-responsive poly(acrylic acid) (PAA)-grafted silica nanoparticles. Interactions between nanoparticles are effectively controlled by grafting densities, PAA brush lengths, and pH, in addition to hydrogen bonding between free polyvinylpyrrolidone (PVP) and PAA. Consequently, various intriguing patterns of randomly distributed dots, polygonal networks, meshes, fork-like structures along with highly regulated and densely packed stripes parallel to the moving direction of substrates are fabricated. Per se, the flow coating process is shown to form regulated patterns during evaporation by controlling particle–particle interactions with inherent brush properties and external pH.

Original language	English
Article number	1701318
Journal	Advanced Materials Interfaces
Volume	5
Issue number	5
DOIs	https://doi.org/10.1002/admi.201701318
State	Published - 9 Mar 2018

Keywords

flow coating
grafted nanoparticles
pH-responsive polyelectrolyte
particle–particle interactions
self-assembly

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10.1002/admi.201701318

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title = "Ordering pH-Responsive Polyelectrolyte-Grafted Nanoparticles in a Flow Coating Process",

abstract = "The effects of nanoscale particle interactions on deposition patterns in the flow coating process are investigated using pH-responsive poly(acrylic acid) (PAA)-grafted silica nanoparticles. Interactions between nanoparticles are effectively controlled by grafting densities, PAA brush lengths, and pH, in addition to hydrogen bonding between free polyvinylpyrrolidone (PVP) and PAA. Consequently, various intriguing patterns of randomly distributed dots, polygonal networks, meshes, fork-like structures along with highly regulated and densely packed stripes parallel to the moving direction of substrates are fabricated. Per se, the flow coating process is shown to form regulated patterns during evaporation by controlling particle–particle interactions with inherent brush properties and external pH.",

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author = "Chongfeng Zhang and Thomas Carlson and Siyang Yang and Pinar Akcora",

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T1 - Ordering pH-Responsive Polyelectrolyte-Grafted Nanoparticles in a Flow Coating Process

AU - Zhang, Chongfeng

AU - Carlson, Thomas

AU - Yang, Siyang

AU - Akcora, Pinar

PY - 2018/3/9

Y1 - 2018/3/9

N2 - The effects of nanoscale particle interactions on deposition patterns in the flow coating process are investigated using pH-responsive poly(acrylic acid) (PAA)-grafted silica nanoparticles. Interactions between nanoparticles are effectively controlled by grafting densities, PAA brush lengths, and pH, in addition to hydrogen bonding between free polyvinylpyrrolidone (PVP) and PAA. Consequently, various intriguing patterns of randomly distributed dots, polygonal networks, meshes, fork-like structures along with highly regulated and densely packed stripes parallel to the moving direction of substrates are fabricated. Per se, the flow coating process is shown to form regulated patterns during evaporation by controlling particle–particle interactions with inherent brush properties and external pH.

AB - The effects of nanoscale particle interactions on deposition patterns in the flow coating process are investigated using pH-responsive poly(acrylic acid) (PAA)-grafted silica nanoparticles. Interactions between nanoparticles are effectively controlled by grafting densities, PAA brush lengths, and pH, in addition to hydrogen bonding between free polyvinylpyrrolidone (PVP) and PAA. Consequently, various intriguing patterns of randomly distributed dots, polygonal networks, meshes, fork-like structures along with highly regulated and densely packed stripes parallel to the moving direction of substrates are fabricated. Per se, the flow coating process is shown to form regulated patterns during evaporation by controlling particle–particle interactions with inherent brush properties and external pH.

KW - flow coating

KW - grafted nanoparticles

KW - pH-responsive polyelectrolyte

KW - particle–particle interactions

KW - self-assembly

UR - https://www.scopus.com/pages/publications/85040225952

UR - https://www.scopus.com/pages/publications/85040225952#tab=citedBy

U2 - 10.1002/admi.201701318

DO - 10.1002/admi.201701318

M3 - Article

AN - SCOPUS:85040225952

VL - 5

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

IS - 5

M1 - 1701318

ER -

Ordering pH-Responsive Polyelectrolyte-Grafted Nanoparticles in a Flow Coating Process

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