Aliphatic polyketone obtained by cationic polymerization of ethylketene
Literature Information
Publication Date
2011-07-29
DOI
10.1039/C1PY00199J
Impact Factor
5.582
Authors
Najib Hayki, Nicolas Desilles, Fabrice Burel
View Original
Abstract
For the first time, ethylketene, synthesized by thermolysis of butyric anhydride, was polymerized cationically in order to obtain a novel aliphatic polyketone. Initiated by Lewis acid initiator AlBr3, this polymerization was undertaken in different solvents and at −78 °C (top polymerization yield of 57% in toluene). 1H-13C HSQC NMR experiments clearly demonstrated the polyketonic microstructure. The thermal properties of this new polymer were analyzed by DSC, TGA and X-ray diffraction: with a glass transition temperature around 70 °C and an average crystallinity of 0.34, this polymer showed a starting degradation temperature near 210 °C.
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Polymer Chemistry
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