Thermal and calorimetric investigations of some phosphorus-modified chain growth polymers 2: Polystyrene

Malavika Arun, Stephen Bigger, Maurice Guerrieri, Paul Joseph, Svetlana Tretsiakova-McNally

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Abstract

In this paper, we report on the thermal degradation behaviours and combustion attributes of some polymers based on polystyrene (PSt). Here, both additive and reactive strategies were employed, through the bulk polymerization route, where the modifying groups incorporated P-atom in various chemical environments. These included oxidation states of III or V, and the loading of phosphorus was kept at ca. 2 wt.% in all cases. The characterization techniques that were employed for the recovered products included spectroscopic, thermal, and calorimetric. It was found that the presence of different modifying groups influenced the degradation characteristics of the base polymer, and also exerted varying degrees of combustion inhibition. In all cases, the modification of the base matrix resulted in a noticeable degree of fire retardance as compared to that of the virgin material. Therefore, some of the modifications presented have the potential to be explored on a commercial scale
Original languageEnglish
Article number1520
Number of pages13
JournalPolymers
Volume14
Issue number8
Early online date8 Apr 2022
DOIs
Publication statusE-pub ahead of print - 8 Apr 2022

Keywords

  • Polystyrene
  • phosphorus-containing compounds
  • additive and reactive routes
  • thermal stability
  • combustion attributes

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