Experimental design to evaluate the efficiency of maghemite nanoparticles incorporation in styrene‐divinylbenzene copolymers

Experimental design to evaluate the efficiency of maghemite nanoparticles incorporation in styrene‐divinylbenzene copolymers

Magnetized styrene‐divinylbenzene resins can be obtained by inserting superparamagnetic nanoparticles of maghemite (γ‐Fe2O3) in the polymeric matrix. The incorporation of this nanoparticulate material can be influenced by several factors. The objective of this work was to evaluate the influence of t...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied polymer science Vol. 138; no. 18
Main Authors: Ramos, Gabriela Soares Macello, Mendes, Matheus de Souza Lima, Neves, Marcia Angélica Fernandes e Silva, Pedrosa, Marcelo Sierpe, Silva, Manoel Ribeiro
Format: Journal Article
Language:English
Published: Hoboken, USA John Wiley & Sons, Inc 10-05-2021
Wiley Subscription Services, Inc
Wiley
Subjects:
Chemical Sciences
Copolymers
Design analysis
Design factors
Design of experiments
Divinylbenzene
Incorporation
Initiators
Magnetic properties
Magnetic saturation
magnetism and magnetic properties
Magnetization
Magnetization curves
Materials science
Morphology
Nanoparticles
Polymers
Resins
Stability analysis
Styrenes
Thermal degradation
Thermal stability
Thermogravimetric analysis
thermogravimetric analysis (TGA)
Toluene
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Magnetized styrene‐divinylbenzene resins can be obtained by inserting superparamagnetic nanoparticles of maghemite (γ‐Fe2O3) in the polymeric matrix. The incorporation of this nanoparticulate material can be influenced by several factors. The objective of this work was to evaluate the influence of these variables through an experimental design, where three factors were evaluated: cross‐linking degree, initiator content and porogenic agent, at two levels. Subsequently, to evaluate the properties of the synthesized magnetized resins, magnetization curves were plotted using a vibrating sample magnetometer, thermal stability of the magnetized copolymer was determined by thermogravimetric analysis and the morphology was observed by scanning electron microscopy. The highest initiator content produced the greatest synthesis yield, and the presence of toluene had a positive effect on saturation magnetization, indicating that incorporation of maghemite in the polymer matrix and thermal degradation were influenced by higher divinylbenzene content.
Bibliography:Funding information
Federal Institute of Rio de Janeiro(IFRJ‐campus Nilópolis)
Corrections added on Dec 31, 2020, after first online publication: Following a request by the authors, the order of author names has been adjusted and now is shown as intended by the authors.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.50318