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高等学校化学研究 ›› 2006, Vol. 22 ›› Issue (1): 114-117.

• Articles • 上一篇    下一篇

Synthesis and Properties of Poly(aryl ether ketone) Copolymers Containing 2,7-Naphthalene Moieties

LIU Si-jie, NIU Ya-ming, ZHU Xiao-liang, WANG Gui-bin, JIANG Zhen-hua   

  1. Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, P.R. China
  • 收稿日期:2005-04-18 出版日期:2006-02-24 发布日期:2011-08-06

Synthesis and Properties of Poly(aryl ether ketone) Copolymers Containing 2,7-Naphthalene Moieties

LIU Si-jie, NIU Ya-ming, ZHU Xiao-liang, WANG Gui-bin, JIANG Zhen-hua   

  1. Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, P.R. China
  • Received:2005-04-18 Online:2006-02-24 Published:2011-08-06

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摘要： Poly(aryl ether ketone) copolymers containing 2,7-naphthylene and hydroquinone(HQ) moieties with various compositions were prepared by the reaction of 4,4′-difluorobenzophenone(DFB) 2,7-naphthylene and hydroquinone in the presence of sodium carbonate and potassium carbonate(19∶1, mass ratio) in diphenyl sulfone(DPS). The thermal analysis results of the copolymers show that the glass transition temperatures(Tgs) increase, while the melting temperatures(Tm) and the 5.0% weight loss temperatures(Td) decrease with the increase of the 2,7-naphthalene moieties. For the copolymers synthesized at a molar fraction of 2,7-naphthalene in the difluoro monomers being over 0.30, no peaks corresponding to the cold crystallization temperature and the melting temperature could be detected, indicating that these copolymers are almost amorphous. The crystal structures of the copolymers with a molar fraction of 2,7-naphthalene being less than 0.30 are rhombic.

关键词: Poly(aryl ether ketone), Naphthalene derivatives, Friedel-crafts acylation

Abstract: Poly(aryl ether ketone) copolymers containing 2,7-naphthylene and hydroquinone(HQ) moieties with various compositions were prepared by the reaction of 4,4′-difluorobenzophenone(DFB) 2,7-naphthylene and hydroquinone in the presence of sodium carbonate and potassium carbonate(19∶1, mass ratio) in diphenyl sulfone(DPS). The thermal analysis results of the copolymers show that the glass transition temperatures(Tgs) increase, while the melting temperatures(Tm) and the 5.0% weight loss temperatures(Td) decrease with the increase of the 2,7-naphthalene moieties. For the copolymers synthesized at a molar fraction of 2,7-naphthalene in the difluoro monomers being over 0.30, no peaks corresponding to the cold crystallization temperature and the melting temperature could be detected, indicating that these copolymers are almost amorphous. The crystal structures of the copolymers with a molar fraction of 2,7-naphthalene being less than 0.30 are rhombic.

Key words: Poly(aryl ether ketone), Naphthalene derivatives, Friedel-crafts acylation