p-Hydroxymethylbenzyl chloride was found to be an effective cross-linking agent for polystyrene. The reaction was found to occur by Friedel-Crafts alkylation between the benzyl alcohol/chloride functional groups in the additive and phenyl ring in polystyrene. The reaction was studied by TGA-IR to monitor the evolution of hydrogen chloride and water, and the structure of the resultant gel was analyzed by solid state NMR and elemental analysis. The potential application in flame-retardancy was evaluated using Cone calorimetry.
- Fire retardancy
- Cone calorimetry
Yao, H., McKinney, M. A., Dick, C., Liggat, J. J., Snape, C., & Wilkie, C. A. (2001). Cross-linking of polystyrene by Friedel-Crafts chemistry: reaction of p-hydroxymethylbenzyl chloride with polystyrene. Polymer Degradation and Stability, 72(3), 399-405. https://doi.org/10.1016/S0141-3910(01)00060-X