Nano-structured magneto-responsive membranes from block copolymers and iron oxide nanoparticles

Lakshmeesha Upadhyaya, Mona Semsarilar, Rodrigo Fernández-Pacheco, Gema Martinez, Reyes Mallada, Isabel M. Coelhoso, Carla A. M. Portugal, João G. Crespo, André Deratani, Damien Quemener

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Mixed matrix membranes (MMMs) provide an exciting alternative to traditional membranes due to their favorable properties from both building blocks which are essential for certain separation applications. Block copolymer directed synthesis of MMMs is an innovative approach for the preparation of porous materials. In the current work the syntheses of mixed matrix membranes from a PMAA-b-PMMA block copolymer and functionalized iron oxide magnetic nanoparticles are demonstrated. The block copolymers were synthesized using a RAFT polymerization technique, along with three different types of magnetic nanoparticles with various surface properties. The thin film membranes were prepared by mixing different ratios of diblock copolymer in THF and iron oxide nanoparticles in water followed by tape casting or spin coating. The particles and the membranes were characterized using TEM, DLS, and SEM. The permeation behavior of the membranes was assessed using filtration tests in the presence and absence of a magnetic field.

Original languageEnglish
Pages (from-to)605-614
Number of pages10
JournalPolymer Chemistry
Volume8
Issue number3
DOIs
Publication statusPublished - 21 Jan 2017

Keywords

  • MIXED-MATRIX MEMBRANES
  • FILLED POLY 1-TRIMETHYLSILYL-1-PROPYNE
  • ALCOHOLIC DISPERSION POLYMERIZATION
  • COMPOSITE TFC MEMBRANE
  • GAS-SEPARATION
  • ADSORPTIVE REMOVAL
  • TRIBLOCK COPOLYMER
  • DESALINATION

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