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Title of Journal: J Polym Res

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Abbravation: Journal of Polymer Research

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Springer Netherlands

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Temperature-pH dual responsive OPGMA based copolymeric hydrogels prepared by gamma radiation: an optimisation study

Authors: Z. Rogic Miladinovic, M. Micic, E. Suljovrujic,

Publish Date: 2016/03/22
Volume: 23, Issue:4, Pages: 77-
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The purpose of this study was to attain oligo(propylene glycol) methacrylate (OPGMA) based hydrogels for different biomedical applications. Since the volume phase transition temperature (VPTT) of poly(oligo(propylene glycol) methacrylate) (POPGMA) homopolymer was below room temperature, it was necessary to tune the thermoresponsiveness and the VPTT to higher temperatures; radical copolymerisation of OPGMA with more hydrophilic and/or pH responsive monomers was used to adjust these values. A series of copolymeric hydrogels with different ratios of OPGMA, 2-hydroxyethyl methacrylate (HEMA) and itaconic acid (IA) was synthesised by gamma radiation. The swelling properties were preliminarily investigated over a wide pH (2.2–9.0) and temperature (4–80 °C) ranges. Additional characterization of their structure and properties was conducted by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). The presented results revealed temperature/pH dual responsive P(OPGMA/IA) and P(OPGMA/HEMA/IA) copolymers with large diversity in swelling properties, as a result of the addition of OPGMA thermoresponsive units with a lower critical solution temperature (LCST) and IA pH responsive units. It was demonstrated that VPTT can be significantly shifted to higher (e.g. body) temperatures at higher pH values (pH ≥ 4) by increasing the IA content in the hydrogel composition. Due to the possibility of making dual responsive copolymers in the manner explained in this paper, OPGMA based hydrogels show potential for different biomedical applications.



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Other Papers In This Journal:

  1. Temperature-pH dual responsive OPGMA based copolymeric hydrogels prepared by gamma radiation: an optimisation study
  2. Synthesis and electrochromic performance of a novel polymer based on an oxidative polymer derived from carbazole and thiophene
  3. Thermo- and pH-sensitive interpenetrating poly(N-isopropylacrylamide)/carboxymethyl pullulan network for drug delivery
  4. High moisture strength of cassava starch/polyvinyl alcohol-compatible blends for the packaging and agricultural sectors
  5. Effects of phenyl-s-triazine moieties on thermal stability and degradation behavior of aromatic polyether sulfones
  6. Synthesis and characterization of thermo-insensitive
  7. Synthesis and application of polyurethane basic organic-inorganic hybrid materials as highly hydrophobic coatings
  8. Ammonia gas-sensing based on polythiophene film prepared through electrophoretic deposition method
  9. Synthesis and characterization of polyvinyl alcohol based semi interpenetrating polymeric networks
  10. Preparation and characterization of novel polyimide films containing amide groups
  11. A new thin film composite nanofiltration membrane based on PET nanofiber support and polyamide top layer: preparation and characterization
  12. Oxygen depletion properties of glucose-grafted polyethylene resins filled with sodium ascorbate/modified iron compounds
  13. Preparation and characterization of hemp hurd powder filled SBR and EPDM elastomers
  14. Synthesis of novel biodegradable material poly(lactic acid-trimesic acid) via direct melt copolycondensation and its characterization
  15. Toughening biodegradable polylactide with nanopores
  16. Synthesis of urea-formaldehyde resin by melt condensation polymerization
  17. Properties of a Calcium Phosphate Cement Synergistically Reinforced by Chitosan Fiber and Gelatin
  18. Synthesis and characterization of pH switching electrical conducting biopolymer hybrids for sensor applications
  19. Tailor-made polymer beads for gallic acid recognition and separation
  20. A novel approach to study the isothermal and non-isothermal crystallization kinetics of Poly(Ethylene Terephthalate) by Raman spectroscopy
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