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Polyacrylamide-polyaniline composites: the effect of crosslinking on thermal, swelling, porosity, crystallinity, and conductivity properties

  • Mehmet Umur Celik
  • Sema EkiciEmail author
Original Contribution
  • 11 Downloads

Abstract

When the synthesis of hydrogels, which are a hydrophilic group of polymers, occurs below the freezing point of water, the hydrogels gain a perfect property: porosity. Hydrogels with this property and resulting sponge-like structure are called cryogels (CRYs). The porosity of cryogels is affected by the amount of crosslinker used. In this study, how the amount of crosslinker affected the porosity initially was investigated, along with thermal, swelling, and crystallinity properties of polyacrylamide (PAAM) cryogels. Additionally, a series of composites (COMs) were synthesized with polyaniline (PAN) in the pore spaces of CRYs and again the effect of varying pore size on the electrical conductivity of COMs was researched. In the cryogel series, as the amount of N,N′-methylenbisacrylamide (MBA) increased, the pore size increased. The S, P, Ps, and Vp parameters increased in general with the MBA increase. The conductivity values of composites were determined in the interval of 1.6 × 10−3-4.5 × 10−3 S cm−1.

Graphical Abstract

Keywords

Cryogel Porosity Crosslinking Conductive cryogels Polyaniline 

Notes

Acknowledgments

The authors would like to express their thanks to Assoc. Prof. Dr. Barbaros Demirselcuk (Canakkale Onsekiz Mart University, Technical Sciences Vocational School, Department of Energy and Electric) for conductivity measurements.

Funding information

This research was supported by the Scientific Projects Commission of Canakkale Onsekiz Mart University, 2017/1341.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Graduate School of Natural and Applied Sciences, Terzioglu CampusCanakkale Onsekiz Mart UniversityCanakkaleTurkey
  2. 2.Faculty of Sciences and Arts, Department of Chemistry Hydrogel Research Laboratory Terzioglu CampusCanakkale Onsekiz Mart UniversityCanakkaleTurkey

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