Thermal and Calorimetric Evaluations of Polyacrylonitrile Containing Covalently-Bound Phosphonate Groups

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

One of the effective ways to enhance flame retardance of polyacrylonitrile (PAN) is through a reactive route, primarily developed in our laboratories, which involved chemical modification reactions utilising phosphorus-containing comonomers. In the present study, diethyl(acryloyloxymethyl)phosphonate (DEAMP) and diethyl(1-acryloyloxyethyl)phosphonate (DE1AEP) were synthesised and copolymerised with acrylonitrile (AN), under radical initiation in an inert atmosphere, in aqueous slurries. The thermal degradation and combustion characteristics as well as the extent of flame retardation were mainly assessed with the aid of various thermo-analytical and calorimetric techniques. It was found that the incorporation of phosphonate groups in polymeric chains of PAN resulted in improved flame-retardant characteristics. Furthermore, it was observed that the actual chemical environment of the phosphorus atom in the acrylic phosphonate modifying groups has little effect on the overall thermal degradation and combustion behaviours of the modified PAN systems. It was also observed that the predominant mode of flame retardance occurred in the condensed phase.
LanguageEnglish
JournalPolymers
Volume10 (2)
Issue number131
DOIs
Publication statusPublished - 30 Jan 2018

Fingerprint

Organophosphonates
Phosphorus
Pyrolysis
Flame Retardants
Acrylonitrile
Chemical modification
Slurries
Acrylics
Atoms
Hot Temperature
polyacrylonitrile

Keywords

  • polyacrylonitrile
  • chemical modification
  • flame retardance
  • acrylic phosphonates
  • thermal degradation
  • combustion characteristics

Cite this

@article{fe9466a4923c4772930cf13eb631cb29,
title = "Thermal and Calorimetric Evaluations of Polyacrylonitrile Containing Covalently-Bound Phosphonate Groups",
abstract = "One of the effective ways to enhance flame retardance of polyacrylonitrile (PAN) is through a reactive route, primarily developed in our laboratories, which involved chemical modification reactions utilising phosphorus-containing comonomers. In the present study, diethyl(acryloyloxymethyl)phosphonate (DEAMP) and diethyl(1-acryloyloxyethyl)phosphonate (DE1AEP) were synthesised and copolymerised with acrylonitrile (AN), under radical initiation in an inert atmosphere, in aqueous slurries. The thermal degradation and combustion characteristics as well as the extent of flame retardation were mainly assessed with the aid of various thermo-analytical and calorimetric techniques. It was found that the incorporation of phosphonate groups in polymeric chains of PAN resulted in improved flame-retardant characteristics. Furthermore, it was observed that the actual chemical environment of the phosphorus atom in the acrylic phosphonate modifying groups has little effect on the overall thermal degradation and combustion behaviours of the modified PAN systems. It was also observed that the predominant mode of flame retardance occurred in the condensed phase.",
keywords = "polyacrylonitrile, chemical modification, flame retardance, acrylic phosphonates, thermal degradation, combustion characteristics",
author = "Svetlana Tretsiakova-McNally and Paul Joseph",
year = "2018",
month = "1",
day = "30",
doi = "10.3390/polym10020131",
language = "English",
volume = "10 (2)",
journal = "Polymers",
issn = "2073-4360",
publisher = "MDPI",
number = "131",

}

Thermal and Calorimetric Evaluations of Polyacrylonitrile Containing Covalently-Bound Phosphonate Groups. / Tretsiakova-McNally, Svetlana; Joseph, Paul.

In: Polymers, Vol. 10 (2), No. 131, 30.01.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Thermal and Calorimetric Evaluations of Polyacrylonitrile Containing Covalently-Bound Phosphonate Groups

AU - Tretsiakova-McNally, Svetlana

AU - Joseph, Paul

PY - 2018/1/30

Y1 - 2018/1/30

N2 - One of the effective ways to enhance flame retardance of polyacrylonitrile (PAN) is through a reactive route, primarily developed in our laboratories, which involved chemical modification reactions utilising phosphorus-containing comonomers. In the present study, diethyl(acryloyloxymethyl)phosphonate (DEAMP) and diethyl(1-acryloyloxyethyl)phosphonate (DE1AEP) were synthesised and copolymerised with acrylonitrile (AN), under radical initiation in an inert atmosphere, in aqueous slurries. The thermal degradation and combustion characteristics as well as the extent of flame retardation were mainly assessed with the aid of various thermo-analytical and calorimetric techniques. It was found that the incorporation of phosphonate groups in polymeric chains of PAN resulted in improved flame-retardant characteristics. Furthermore, it was observed that the actual chemical environment of the phosphorus atom in the acrylic phosphonate modifying groups has little effect on the overall thermal degradation and combustion behaviours of the modified PAN systems. It was also observed that the predominant mode of flame retardance occurred in the condensed phase.

AB - One of the effective ways to enhance flame retardance of polyacrylonitrile (PAN) is through a reactive route, primarily developed in our laboratories, which involved chemical modification reactions utilising phosphorus-containing comonomers. In the present study, diethyl(acryloyloxymethyl)phosphonate (DEAMP) and diethyl(1-acryloyloxyethyl)phosphonate (DE1AEP) were synthesised and copolymerised with acrylonitrile (AN), under radical initiation in an inert atmosphere, in aqueous slurries. The thermal degradation and combustion characteristics as well as the extent of flame retardation were mainly assessed with the aid of various thermo-analytical and calorimetric techniques. It was found that the incorporation of phosphonate groups in polymeric chains of PAN resulted in improved flame-retardant characteristics. Furthermore, it was observed that the actual chemical environment of the phosphorus atom in the acrylic phosphonate modifying groups has little effect on the overall thermal degradation and combustion behaviours of the modified PAN systems. It was also observed that the predominant mode of flame retardance occurred in the condensed phase.

KW - polyacrylonitrile

KW - chemical modification

KW - flame retardance

KW - acrylic phosphonates

KW - thermal degradation

KW - combustion characteristics

U2 - 10.3390/polym10020131

DO - 10.3390/polym10020131

M3 - Article

VL - 10 (2)

JO - Polymers

T2 - Polymers

JF - Polymers

SN - 2073-4360

IS - 131

ER -