References
  1. SIMPESC. SIMPESC - POLYSTYRENE: attention to numbers (In Portuguese), (2015). Available at: http://www.simpesc.org.br/2015/03/poliestireno-atencao-aos-numeros/. (Accessed: 3rd May 2018).
  2. Brandrup J, Immergut EH, Grulke EA. Polymer Handbook . US: John Wiley & Sons, Ltd; 1999.
  3. Grassi VG, Madalena M, Forte C, Dal Pizzol MF. Morphological aspects and structure-properties relationship of high impact polystyrene (in Portuguese). Sci Tech Poly . 2001; 11: 158–168.
  4. Euclydes CCF. Polystyrene: The Material And Its Transformation(In Portuguese). Brazil: Brothers Semerano; 1995.
  5. Baltá-Calleja FJ, Cagiao ME, Adhikari R, Michler GH. Relating microhardness to morphology in styrene/butadiene block copolymer/polystyrene blends. DOI:10.1016/j.polymer.2003.10.089.
  6. De Paoli M. Polymer Degradation and Stabilization (In Portuguese). Brazil: Chemkeys; 2008.
  7. Ward IM, Sweeney J. A Introduction To The Mechanical Properties Of Solid Polymers . US: John Wiley & Sons, Ltd.; 2004.
  8. Riddell MN. A guide to better testing of plastics. Plast. Eng.1974; 30: 71–78.
  9. Nielsen L. Mechanical Properties Of Polymers And Composites . US: M.Dekker; 1994.
  10. ASTM G 154-16. Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials. Annu. B. ASTM Stand. (2016).
  11. Becerra, A. F. C. & D’Almeida, J. R. M. UV effects on the tensile and creep behaviour of HDPE. Polym Polym Compos . 2017; 25: 327–332.
  12. Klein, M. V & Furtak, T. E. Optics . US:Jonh Wiley and Sons; 1986.
  13. ASTM D 3479. Standard Test Method for Tension-Tension Fatigue of Polymer Matrix Composite Materials. Annu. B. ASTM Stand. (2016).
  14. ASTM D 638-14. Standard Test Method for Plastic Tensile Properties. Annu. B. ASTM Stand. (2014).
  15. ASTM E384-17, Standard Test Method for Microindentation Hardness of Materials, Annu. B. ASTM Stand. (2017).
  16. ASTM D 2765-16. Standard Test Methods for Determination of Gel Content and Swelling Ratio of Cross-linked Ethylene Plastics. Annu. B. ASTM Stand. (2016). DOI:10.1520/D2765-16.
  17. ASTM D 3417-99. Standard Test Method for Differential Exploratory Calorimetry (DSC) Polymer Fusion and Crystallization Enthalpies. Annu. B. ASTM Stand. (1999). DOI:10.1520/D3417-99.
  18. Lucas EF, Soares BG, Monteiro EEC. Polymer Characterization: Molecular Weight Determination and Thermal Analysis (In Portuguese). E-papers, 2001.
  19. Remili CMK. Photo-oxidation of polystyrene/clay nanocomposites under accelerated UV exposure: Effect of the structure and molecular weight.J Appl Polym Sci . 2019; 112: 2868–2875.
  20. Yousif E, Haddad R. Photodegradation and photostabilization of polymers, especially polystyrene: Review. Springerplus . 2013; 2: 1-32.
  21. Lambert S, Wagner M. Characterisation of nanoplastics during the degradation of polystyrene. Chemosphere. 2016; 145, p. 265–268.
  22. Girois SLA. Molecular weight changes during the photooxidation of isotactic polypropylene. Polym. Degrad. Stab . 1996; 51: 125–132.
  23. Babaghayou MI. Photodegradation characterization and heterogeneity evaluation of exposure and unexposed faces os stabilized and unstabilized LDPE films. Mater Des . 2016; 111: 279–290.
  24. Lee KH, Kim HY, La YM, Lee DR, Sung NH. Influence of a mixing solvent with tetrahydrofuran and N, N-dimethylformamide on electrospun poly(vinyl chloride) nonwoven mats. J Polym Sci Part B Polym Phys . 2002; 40: 2259–2268.
  25. David C, Baeyens D. VolantStatistical theories of main chain scission and crosslinking of polymers—application to the photolysis and radiolysis of polystyrene studied by gel permeation chromatography.Eur. Polym. J . 1978; 14: 29–38.
  26. Fernandes LL, Freitas CA, Demarquette NR, Fechine GJM. Study of the effect of the polypropylene type on the photodegradation of the high impact polypropylene/polystyrene blend (In Portuguese).Polímeros . 2012; 22: 61–68.
  27. Zhang H, Shi M. Effects of Sunshine UV Irradiation on the Tensile Properties and Structure of Ultrahigh Molecular Weight Polyethylene Fiber. J Appl Polym Sci. 2003; 89.
  28. Celina MDKO. FTIR emission spectroscopy applied to polymer degradation. Polym Degrad Stab . 1997; 58: 15–31.
Availability of Data: The data that support the findings of this study are available from the corresponding author upon reasonable request.
Statement of Contribution: K.G.C. Monsores, A.O. Silva and R.P. Weber processed the experimental data, performed the analysis, drafted the manuscript and designed the figures. S.S. Oliveira and P.F. Filho performed the measurements (TGA/DSC). L.G. Simão manufactured the samples and characterized them (microhardness). E.A. de Carvalho performed the Fatigue characterization. E.A. de Carvalho and S.N. Monteiro. aided in interpreting the results and worked on the manuscript. All authors discussed the results and commented on the manuscript.