Swelling, mechanical and thermal properties of microwave – synthesized intelligent soft materials

  • 1 University of Novi Sad, Faculty of Technology Novi Sad, Serbia
  • 2 University of Niš, Faculty of Technology Leskovac, Serbia
  • 3 University of Novi Sad, Institute of Food Technology in Novi Sad, Serbia


Advances in technology since the second half of the 20th century are followed as well as induced by the development of intelligent materials. These materials are able to respond to external stimuli by measurable changes in structure and intrinsic properties. Stimuli-responsive hydrogels are soft smart materials as they exhibit significant changes in physicochemical properties in response to small external stimuli. Acrylate hydrogels are widely used in applications where their smart and soft nature comes to the fore. Synthesis of those materials by conventional heating is time-consuming and unsuitable from the point of energy and sources saving. Microwave-assisted synthesis is promising method that provides polymerization under the more favourable conditions, reducing the reaction time. The focus of present work was to investigate the swelling behaviour, mechanical and thermal properties of acrylate hydrogels synthesized by microwave heating.



  1. Liu Z, Toh W, NG T Y, Advances in Mechanics of Soft Materials: A Review of Large Deformation Behavior of Hydrogels, International Journal of Applied Mechanics, 7 (5) , 2015, 1530001- 1-1530001-35.
  2. Kostić A, Jovanović J, Adnadjević B, Popović A, Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water, Journal of the Serbian Chemical Society 72(11), 2007, 1139-1153.
  3. Kopecek J, Polymer chemistry: swell gels. Nature 417(6887), 2002, 388-391.
  4. Mahkam M, Allahverdipoor M, Controlled release ofbiomolecules from pH-sensitive network polymers prepared by radiation polymerization. Journal of Drug Targeting 12, 2004, 151– 156.
  5. Jeong, B and Gutowska A, Lessons from nature: stimuliresponsive polymers and their biomedical applications, Trends Biotechnology 20, 2002, 305–311.
  6. Xue W, Champ S, Huglin M, Network and swelling parameters of chemically crosslinked thermoreversible hydrogels 42 (8), 2001, 3665-3669.
  7. Scranton AB, Rangarajan B, Klier J, Biomedical applications of polyelectrolytes, Advances in Polymer Science 120, 1995, 1–54.
  8. Baker JP, Blanch HW, Prausnitz JM, Swelling properties of acrylamide based ampholytic hydrogels: comparison of experiment with theory, Polymer 36 (5), 1995, 1061-1069
  9. Achilleos EC, Prud'Homme R K, Christodoulou KN, Gee KR, Kevrekidis IG, Dynamic deformation visualization in swelling of polymer gels, Chem Eng Sci, 55, 2000, 3335-3340.
  10. Ullah F, Othman MBH, Javed F, Ahmad Z, Akil, HM, Classification, processing and application of hydrogels: A review. Mater. Sci. Eng. C, 57, 2015, 414–433.
  11. Rintoul I, Wandrey C, Polymerization of ionic monomers in polar solvents: kinetics and mechanism of the free radical copolymerization of acrylamide/acrylic acid, Polymer, 46 (2005), pp. 4525-4532.
  12. Tomar RS, Gupta I, Singhal, Nagpal AK, Synthesis of Poly (Acrylamide-co-Acrylic Acid) based Superabsorbent Hydrogels: Study of Network Parameters and Swelling Behaviour, PolymerPlastics Technology and Engineering, 46 (5), 2007, 481–488.
  13. Pizzetti M, Heterogeneous catalysis under microwave heating, La Chimica & L'Industria, Società Chimica Italiana 4, 2012, 78–80.
  14. Peppas NA, Bures P, Leobandung W, Ichikawa H, Hydrogels in pharmaceutical formulations, Eur. J. Pharm. Biopharm., 50, 2000, 27-46.
  15. Craciun G, Ighigeanu D, Manaila E , Stelescu M D, Synthesis and Characterization of Poly(Acrylamide-Co-Acrylic Acid) Flocculant Obtained by Electron Beam Irradiation, Materials Research, 18(5), 2015, 984-993.
  16. Soppimath KS, Aminabhavi TM, Dave AM, Kumbar SG, Rudzinski WE, Stimulus-responsive “smart” hydrogels as novel drug delivery systems, 28 (8), 2002, 957-974.

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