Synthesis and characterization of poly(dihalophenylene oxides) by thermal decomposition of copper complexes with tetramethylethylenediamine and ethylenediamine ligands

Date

1989-2

Author

Ünal, H. Ibrahim
Kısakürek, Duygu
Şanlı, Oya

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Thermal polymerization of bis(trihalophenoxo)-N,N,N′,N′-tetramethylethylenediamine copper(ii) and bis(trihalophenoxo)ethylenediamine copper(ii) was achieved in toluene at 70°C. The dependences of intrinsic viscosity and the percentage yield of the polymers on a sequence of increasing decomposition times of copper complexes were investigated. Structural analyses of the polymers were carried out using mainly1H nuclear magnetic resonance spectroscopy and differential scanning calorimetry. 1,4-Catenation was highly favoured over 1,2-addition in 4-bromo-2,6-dichlorophenoxide- and 2,4,6-triiodophenoxide- (with ethylenediamine ligand) and 2,4,6-triiodophenoxide- (with tetramethylethylenediamine ligand) derived polymers. However, polymers synthesized from 2,4,6-trichlorophenoxide with either ligand displayed a selectivity in favour of 1,2-catenation, whereas for 2,4,6-tribromophenoxide with ethylene diamine ligand, 1,4-catenation and ortho substitution took place at roughly equal rates.

Subject Keywords

Organic Chemistry, Polymers and Plastics, Polymer Science

URI

https://hdl.handle.net/11511/51718

Journal

Polymer

DOI

https://doi.org/10.1016/0032-3861(89)90127-4

Collections

Department of Chemistry, Article

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Citation Formats

H. I. Ünal, D. Kısakürek, and O. Şanlı, “Synthesis and characterization of poly(dihalophenylene oxides) by thermal decomposition of copper complexes with tetramethylethylenediamine and ethylenediamine ligands,” Polymer, pp. 344–347, 1989, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51718.