Preparation and thermal behaviour of acrylonitrile (AN)/ethyl acrylate (EA) copolymer and acrylonitrile (AN)/ethyl acrylate (EA)/fumaronitrile (FN) terpolymer as precursors for carbon fibre

Siti Nurul Ain Md Jamil, Rusli Daik, Ishak Ahmad

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Redox polymerization of acrylonitrile (AN) with ethyl acrylate (EA) and fumaronitrile (FN), as comonomer and termonomer respectively, were carried out using sodium bisulfite (SBS) and potassium persulphate (KPS) as initiators at 40°C. The actual composition of monomers in copolymers and terpolymers has been characterized by gas chromatography (GC). The effects of EA and FN on the glass transition temperature (Tg) and stabilization temperature have been studied by Differential Scanning Calorimetry (DSC). The degradation behaviour and char yield were obtained by thermogravimetric analysis. Meanwhile, incorporation of 10 mol% of EA in homoPAN system was found to greatly reduce Tg to 66°C as compared to that of the homoPAN (Tg=105°C). The initial cyclization temperature (Ti) was found to be higher (264°C) in comparison to that of homoPAN (246°C). In addition, the incorporation of EA was also shown to reduce the char yield of copolymer to 40%. When FN was incorporated as termonomer, the char yield of poly(AN/EA/FN) 90/4/6 increased up to 44% after the heat treatment with the lowest Ti (241°C).

Original languageEnglish
Pages (from-to)401-409
Number of pages9
JournalPertanika Journal of Science and Technology
Volume18
Issue number2
Publication statusPublished - Jul 2010

Fingerprint

Acrylonitrile
Terpolymers
composite polymers
Carbon fibers
Copolymers
Hot Temperature
Trout
heat
Cyclization
Gas chromatography
Potassium
Thermogravimetric analysis
Differential scanning calorimetry
Stabilization
Monomers
temperature
Heat treatment
Polymerization
Sodium
calorimetry

Keywords

  • Acrylonitrile
  • Carbon fibre
  • Copolymer
  • Ethyl acrylate
  • Fumaronitrile
  • Redox polymerization
  • Terpolymer

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Chemical Engineering(all)
  • Computer Science(all)
  • Environmental Science(all)

Cite this

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title = "Preparation and thermal behaviour of acrylonitrile (AN)/ethyl acrylate (EA) copolymer and acrylonitrile (AN)/ethyl acrylate (EA)/fumaronitrile (FN) terpolymer as precursors for carbon fibre",
abstract = "Redox polymerization of acrylonitrile (AN) with ethyl acrylate (EA) and fumaronitrile (FN), as comonomer and termonomer respectively, were carried out using sodium bisulfite (SBS) and potassium persulphate (KPS) as initiators at 40°C. The actual composition of monomers in copolymers and terpolymers has been characterized by gas chromatography (GC). The effects of EA and FN on the glass transition temperature (Tg) and stabilization temperature have been studied by Differential Scanning Calorimetry (DSC). The degradation behaviour and char yield were obtained by thermogravimetric analysis. Meanwhile, incorporation of 10 mol{\%} of EA in homoPAN system was found to greatly reduce Tg to 66°C as compared to that of the homoPAN (Tg=105°C). The initial cyclization temperature (Ti) was found to be higher (264°C) in comparison to that of homoPAN (246°C). In addition, the incorporation of EA was also shown to reduce the char yield of copolymer to 40{\%}. When FN was incorporated as termonomer, the char yield of poly(AN/EA/FN) 90/4/6 increased up to 44{\%} after the heat treatment with the lowest Ti (241°C).",
keywords = "Acrylonitrile, Carbon fibre, Copolymer, Ethyl acrylate, Fumaronitrile, Redox polymerization, Terpolymer",
author = "Jamil, {Siti Nurul Ain Md} and Rusli Daik and Ishak Ahmad",
year = "2010",
month = "7",
language = "English",
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pages = "401--409",
journal = "Pertanika Journal of Science and Technology",
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publisher = "Universiti Putra Malaysia",
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TY - JOUR

T1 - Preparation and thermal behaviour of acrylonitrile (AN)/ethyl acrylate (EA) copolymer and acrylonitrile (AN)/ethyl acrylate (EA)/fumaronitrile (FN) terpolymer as precursors for carbon fibre

AU - Jamil, Siti Nurul Ain Md

AU - Daik, Rusli

AU - Ahmad, Ishak

PY - 2010/7

Y1 - 2010/7

N2 - Redox polymerization of acrylonitrile (AN) with ethyl acrylate (EA) and fumaronitrile (FN), as comonomer and termonomer respectively, were carried out using sodium bisulfite (SBS) and potassium persulphate (KPS) as initiators at 40°C. The actual composition of monomers in copolymers and terpolymers has been characterized by gas chromatography (GC). The effects of EA and FN on the glass transition temperature (Tg) and stabilization temperature have been studied by Differential Scanning Calorimetry (DSC). The degradation behaviour and char yield were obtained by thermogravimetric analysis. Meanwhile, incorporation of 10 mol% of EA in homoPAN system was found to greatly reduce Tg to 66°C as compared to that of the homoPAN (Tg=105°C). The initial cyclization temperature (Ti) was found to be higher (264°C) in comparison to that of homoPAN (246°C). In addition, the incorporation of EA was also shown to reduce the char yield of copolymer to 40%. When FN was incorporated as termonomer, the char yield of poly(AN/EA/FN) 90/4/6 increased up to 44% after the heat treatment with the lowest Ti (241°C).

AB - Redox polymerization of acrylonitrile (AN) with ethyl acrylate (EA) and fumaronitrile (FN), as comonomer and termonomer respectively, were carried out using sodium bisulfite (SBS) and potassium persulphate (KPS) as initiators at 40°C. The actual composition of monomers in copolymers and terpolymers has been characterized by gas chromatography (GC). The effects of EA and FN on the glass transition temperature (Tg) and stabilization temperature have been studied by Differential Scanning Calorimetry (DSC). The degradation behaviour and char yield were obtained by thermogravimetric analysis. Meanwhile, incorporation of 10 mol% of EA in homoPAN system was found to greatly reduce Tg to 66°C as compared to that of the homoPAN (Tg=105°C). The initial cyclization temperature (Ti) was found to be higher (264°C) in comparison to that of homoPAN (246°C). In addition, the incorporation of EA was also shown to reduce the char yield of copolymer to 40%. When FN was incorporated as termonomer, the char yield of poly(AN/EA/FN) 90/4/6 increased up to 44% after the heat treatment with the lowest Ti (241°C).

KW - Acrylonitrile

KW - Carbon fibre

KW - Copolymer

KW - Ethyl acrylate

KW - Fumaronitrile

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