Effect of multiwalled carbon nanotube (MWNT) on the behavior of swelling of polyacrylamide-MWNT composites

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Date

2014

Authors

Evingür, Gülşen Akin
Pekcan, Önder

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Sage Publications Ltd

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Abstract

The purpose of this paper is to discuss the role of multiwalled carbon nanotube in the swelling of polyacrylamide-multiwalled carbon nanotube composites. Swelling experiments were performed in water at various temperatures by real-time monitoring of the decrease in pyranine (Py) and emission light intensity (I-em). The Stern-Volmer equation is modified for low-quenching efficiencies to interpret the behavior of pyranine intensity during the swelling of polyacrylamide-multiwalled carbon nanotube composites. The Li-Tanaka equation was used to determine the swelling time constants tau and cooperative diffusion coefficients D from fluorescence intensity weight and volume variations of the composite at various temperatures. It was observed that when tau decreased naturally D increased by increasing temperatures.

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Keywords

Polyacrylamide, Multiwalled carbon nanotube, Swelling, Fluorescence, Diffusion coefficient

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Citation

10

WoS Q

N/A

Scopus Q

Q2

Source

Volume

33

Issue

13

Start Page

1199

End Page

1206