Zwitterionic polymer brush grafting on anodic aluminum oxide membranes by surface-initiated atom transfer radical polymerization

Chien Wei Chu, Yuji Higaki, Chao Hung Cheng, Ming Hsiang Cheng, Chun Wei Chang, Jiun Tai Chen, Atsushi Takahara

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A feasible processing of zwitterionic polymer-grafted anodic aluminum oxide (AAO) membranes by surface-initiated atom transfer radical polymerization (SI-ATRP) and the geometric effect on the polymer chain growth in the confined nanopores were investigated. A zwitterionic poly(3-(N-2-methacryloyloxyethyl-N,N-dimethyl)ammonatopropanesulfonate) (PMAPS) brush was produced on an AAO membrane via introduction of an initiator with a phosphonate group and subsequent SI-ATRP. The PMAPS-grafted AAO membranes were characterized by water droplet contact angle measurement, size exclusion chromatography (SEC), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and laser Raman micro-spectroscopy. The linear relationship between the grafting yield (Y) of the PMAPS brush and number-average molecular weight (Mn) of the unbound PMAPS indicates that there is no significant geometric effect on the chain growth under the spatial confinement inside the nanopores with diameters of ∼200 nm. The PMAPS brushes were diminished near the center section along the nanopores because the monomer supply was retarded. The capability of the PMAPS-grafted AAO membranes for inorganic nanoparticle immobilization was also demonstrated using gold nanoparticles (AuNPs) through ion-exchange and reduction processes.

Original languageEnglish
Pages (from-to)2309-2316
Number of pages8
JournalPolymer Chemistry
Volume8
Issue number15
DOIs
Publication statusPublished - Apr 21 2017

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Aluminum Oxide
Atom transfer radical polymerization
Nanopores
Brushes
Polymerization
Polymers
Membranes
Aluminum
Oxides
Nanoparticles
Photoelectron Spectroscopy
Organophosphonates
Size exclusion chromatography
Raman Spectrum Analysis
Ion Exchange
Angle measurement
Growth
Immobilization
Gold
Electron Scanning Microscopy

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biochemistry
  • Polymers and Plastics
  • Organic Chemistry

Cite this

Zwitterionic polymer brush grafting on anodic aluminum oxide membranes by surface-initiated atom transfer radical polymerization. / Chu, Chien Wei; Higaki, Yuji; Cheng, Chao Hung; Cheng, Ming Hsiang; Chang, Chun Wei; Chen, Jiun Tai; Takahara, Atsushi.

In: Polymer Chemistry, Vol. 8, No. 15, 21.04.2017, p. 2309-2316.

Research output: Contribution to journalArticle

Chu, Chien Wei ; Higaki, Yuji ; Cheng, Chao Hung ; Cheng, Ming Hsiang ; Chang, Chun Wei ; Chen, Jiun Tai ; Takahara, Atsushi. / Zwitterionic polymer brush grafting on anodic aluminum oxide membranes by surface-initiated atom transfer radical polymerization. In: Polymer Chemistry. 2017 ; Vol. 8, No. 15. pp. 2309-2316.
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