Correlation between structure and responsivity in PNIPAM based nanocomposites: A combined nano- and macroscale view

Barbara Berke, Lionel Porcar, Orsolya Czakkel, K. László

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Thermosensitive hydrogels have enormous potential, e.g. in sensors, actuators, microfluidics or drug delivery systems. In these applications the tuneability of their response rate is a key parameter and is therefore of great interest. However, the applicability of these systems is subject to limitations, which may be overcome by enhanced nanocomposite materials. This paper presents a systematic study of the thermal response of graphene oxide (GO) – and carbon nanotube (CNT) – poly(N-isopropylacrylamide) composite systems, and investigates the effect of the nanoparticle filler content, both on the nanoscale and the macroscopic level. While the equilibrium swelling properties of the different nanocomposites are only slightly influenced, the kinetics of the response of the swelling medium following an abrupt temperature increase from 20 to 40 or 50 °C can vary within wide limits depending on the type or the amount of nanoparticle loading, as well as on the temperature difference.

Original languageEnglish
Pages (from-to)180-188
Number of pages9
JournalEuropean Polymer Journal
Volume99
DOIs
Publication statusPublished - Feb 1 2018

Fingerprint

Swelling
Nanocomposites
nanocomposites
Nanoparticles
swelling
Carbon Nanotubes
Hydrogels
Graphite
Microfluidics
Oxides
Graphene
Fillers
Large scale systems
Carbon nanotubes
nanoparticles
Actuators
fillers
Temperature
Kinetics
temperature gradients

Keywords

  • Deswelling kinetics
  • Nanocomposite
  • Responsive hydrogel
  • SANS

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Polymers and Plastics
  • Organic Chemistry

Cite this

Correlation between structure and responsivity in PNIPAM based nanocomposites : A combined nano- and macroscale view. / Berke, Barbara; Porcar, Lionel; Czakkel, Orsolya; László, K.

In: European Polymer Journal, Vol. 99, 01.02.2018, p. 180-188.

Research output: Contribution to journalArticle

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