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Degradation of poly(Butyl acrylate) and poly(2- hydroxyethyl methacrylate) model compounds under extreme environmental conditions

Journal Article


Abstract


  • The degradation of low-MW (Mn = 500 g . mol-1) model compounds of pBA and pHEMA were studied under conditions corresponding to the worst-case temperatures and irradiation intensities likely to be experienced by a surface coating exposed to the harsh Australian environment. Vinyl-terminated polymers were compared to their saturated analogues; the terminal vinyl bond was found to be a source of instability which rendered the polymers more susceptible to degradation. The cyclic degradation mechanism derived from degradation of pMMA in our previous publication is also relevant to pBA and pHEMA. In addition, pBA and pHEMA are susceptible to other degradation and crosslinking reactions; crosslinking is particularly rapid in pHEMA exposed to UV radiation. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Publication Date


  • 2010

Citation


  • Benneto, F., Barker, P. J., Davis, T. P., Soeriyadi, A. H., & Barner-Kowollik, C. (2010). Degradation of poly(Butyl acrylate) and poly(2- hydroxyethyl methacrylate) model compounds under extreme environmental conditions. Macromolecular Chemistry and Physics, 211(18), 2034-2052. doi:10.1002/macp.201000133

Scopus Eid


  • 2-s2.0-77956318800

Start Page


  • 2034

End Page


  • 2052

Volume


  • 211

Issue


  • 18

Abstract


  • The degradation of low-MW (Mn = 500 g . mol-1) model compounds of pBA and pHEMA were studied under conditions corresponding to the worst-case temperatures and irradiation intensities likely to be experienced by a surface coating exposed to the harsh Australian environment. Vinyl-terminated polymers were compared to their saturated analogues; the terminal vinyl bond was found to be a source of instability which rendered the polymers more susceptible to degradation. The cyclic degradation mechanism derived from degradation of pMMA in our previous publication is also relevant to pBA and pHEMA. In addition, pBA and pHEMA are susceptible to other degradation and crosslinking reactions; crosslinking is particularly rapid in pHEMA exposed to UV radiation. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Publication Date


  • 2010

Citation


  • Benneto, F., Barker, P. J., Davis, T. P., Soeriyadi, A. H., & Barner-Kowollik, C. (2010). Degradation of poly(Butyl acrylate) and poly(2- hydroxyethyl methacrylate) model compounds under extreme environmental conditions. Macromolecular Chemistry and Physics, 211(18), 2034-2052. doi:10.1002/macp.201000133

Scopus Eid


  • 2-s2.0-77956318800

Start Page


  • 2034

End Page


  • 2052

Volume


  • 211

Issue


  • 18