Comparison of Pentaerythrotol and Its Derivatives as Intumescent Flame Retardants for Polypropylene

<div>The FT-IR spectra of PER (a), PEPA (b), and PBPP (c).</div>

Advances in Materials Science and Engineering

Figure 1: Comparison of Pentaerythrotol and Its Derivatives as Intumescent Flame Retardants for Polypropylene 