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The synthesis and characterisation of grafted random styrene butadiene for biomedical applications

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Abstract

The work undertaken investigates the spectral, thermal and surface characteristics of a random styrene butadiene rubber (SBR) with monomeric graft(s) of acrylic acid (AA), N-vinyl-2-pyrrolidinone (NVP) or N-isopropylacrylamide (NIPAAm) synthesised using UV polymerisation. The grafted materials were characterised by differential scanning calorimetry (DSC), modulated differential scanning calorimetry (MDSC), attenuated total reflectance infrared Fourier transform spectrometry (ATR-FTIR) and atomic force microscopy (AFM). Thermograph analysis has shown an endothermic transition occurring at ~75 °C for all random SB-g-NVP copolymers, whereas the T g value for random SB copolymer was found at 60 °C, thus suggesting that a chemical reaction between styrene and NVP had occurred. Similar thermal profiles to that of random SB-g-NVP copolymers were evident when random SB was UV polymerised with AA. When NIPAAm was grafted onto random SB, a notable exothermic transition was evident in all samples tested using DSC. It was established using MDSC that this exothermic transition was caused by the breakdown of crosslinks as a result of UV polymerisation.

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Notes

  1. Monomer = AA, NVP or NIPAAm.

  2. Xg = 0.002, 0.01, 0.015, 0.02, 0.04 and 0.06 g of crosslinking agents.

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Acknowledgement

This work has been funded by both the National Development Plan and Enterprise Ireland.

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Authors and Affiliations

  1. Centre for Biopolymer and Biomolecular Research, Athlone Institute of Technology, Dublin Rd, Athlone, Co., Westmeath, Ireland

    James E. Kennedy, Declan M. Devine, John G. Lyons, Luke M. Geever & Clement L. Higginbotham

Authors
  1. James E. Kennedy
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  2. Declan M. Devine
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  3. John G. Lyons
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  4. Luke M. Geever
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  5. Clement L. Higginbotham
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Correspondence to Clement L. Higginbotham.

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Kennedy, J.E., Devine, D.M., Lyons, J.G. et al. The synthesis and characterisation of grafted random styrene butadiene for biomedical applications. J Mater Sci 44, 889–896 (2009). https://doi.org/10.1007/s10853-008-3156-2

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  • DOI: https://doi.org/10.1007/s10853-008-3156-2

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