F. Burel, Laetitia Rossignol, Pascale Pontvianne
Dec 1, 2003
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Influential Citations
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Journal
e-Polymers
Abstract
Abstract Poly(ethyl glyoxylate) (PEtG), a new polyacetal, was synthesized via anionic polymerization in CH2Cl2. End-capping was achieved using phenyl isocyanate. Average molecular weights in the range of 9000 - 216 000 were obtained. 1H and 13C NMR characterization highlight the non-stereoregularity of PEtG. The polymer is quasi-atactic and the polymerization almost followed a Bernoulli process. Compared to its homologue poly(methyl glyoxylate), PEtG exhibits enhanced thermal stability (>200°C) and a lower glass transition temperature, Tg. Molecular weight influences Tg, but does not affect thermal stability.