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  2. All Volumes and Issues
  3. Volume 16, Number 1, 2022
  4. Preparation and Purification of a Flame-Retardant Polyphenylphosphonate Containing 4,4'-Dihydroxybenzophenone

Preparation and Purification of a Flame-Retardant Polyphenylphosphonate Containing 4,4'-Dihydroxybenzophenone

JCCT.
2022;
Volume 16, Number 1
: pp. 95–102
https://doi.org/10.23939/chcht16.01.095
Authors:
  1. Graziele Vefago Boaventura Possenti
  2. Aline Vieira de Souza
  3. Rodrigo Battisti
  4. Juliani Conti Martins Dominguini
  5. Lucas Dominguini
  6. Cintia Soares
  7. Humberto Gracher Riella
1
Federal Institute of Education, Science and Technology of Santa Catarina (IFSC)
2
Chemical Engineering Department, Federal University of Santa Catarina (UFSC)
3
Federal Institute of Education, Science and Technology of Santa Catarina (IFSC)
4
Chemical Engineering Department, Federal University of Santa Catarina (UFSC)
5
Federal Institute of Education, Science and Technology of Santa Catarina (IFSC)
6
Chemical Engineering Department, Federal University of Santa Catarina (UFSC)
7
Chemical Engineering Department, Federal University of Santa Catarina (UFSC)

A polyphenylphosphonate containing 4,4'-dihydroxybenzophenone was synthesized as a flame retardant. However, impurities were detected and may compromise its properties and thermal stability. Thus, a purification route based on water and hexane extraction with reflux was proposed. Results showed success in removing impurities, especially P–Cl groups, without damaging the polymer.

polyphenylphosphonate
flame retardant
purification
aqueous extraction
organic extraction
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