Polymerization and characterization of trihalophenolato cerium(IV) complexes in the solid state and in the melt

Date

2003-01-01

Author

Senturk, O
Kisakurek, D

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The synthesis of trihalophenolate cerium (IV) complexes from an aqueous solution and their characterizations by means of FTIR, DSC, elemental analyses, mass spectroscopy, and magnetic susceptibility measurements are described. The thermal polymerizations of these complexes were carried out in the solid state and in the melt. Structural analyses of polymers were performed by H-1-NMR, C-13-NMR, and FTIR spectroscopic analyses; T-g by differential scanning calorimetry; as well as the molecular weights by viscometrical method. It was found that 4-chloro-2,6-bromophenoxide displayed a slightly higher selectivity in favor of 1,2-addition; whereas 1,2- and 1,4-additions took place at equal rates in the case of 2,4,6-tribromophenolate. Complex C I, having tetra-coordination of TBrP per Ce(IV), decomposing at a lower temperature displayed a higher percentage yield, and lower percentage weight loss compared to complex C2. Complex C2 is a hexacoordinated 4-C1-DBrP per Ce(IV) that decomposes at a slightly higher temperature. C2 reached the melting state at a higher temperature (150degreesC) than C1 (120degreesC).

Subject Keywords

Materials Chemistry, Materials Science (miscellaneous), General Chemical Engineering, Polymers and Plastics

URI

https://hdl.handle.net/11511/65128

Journal

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING

DOI

https://doi.org/10.1081/ppt-120017958

Collections

Department of Chemistry, Article

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Citation Formats

O. Senturk and D. Kisakurek, “Polymerization and characterization of trihalophenolato cerium(IV) complexes in the solid state and in the melt,” POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, pp. 373–387, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65128.