Polymerization of propiolic acid and its derivatives catalysed by MoCl5
1982; Elsevier BV; Volume: 23; Issue: 5 Linguagem: Inglês
10.1016/0032-3861(82)90062-3
ISSN1873-2291
AutoresToshio Masuda, Michio Kawai, Toshinobu Higashimura,
Tópico(s)Chemical Synthesis and Reactions
ResumoThe polymerization of propiolic acid by group VI and VIII transition metal catalysts was investigated. MoCl5, which was the most active among the catalysts examined, provided poly (propiolic acid) in over 80% yields under favourable conditions. The polymer formed was a water-soluble tawny powder, and its molecular weight was low (ηspC 0.04–0.05 dl g−1). The polymer structure, was confirmed by the i.r. and 13C n.m.r. spectra and elemental composition. Some derivatives of propiolic acid (methyl propiolate, acetylenedicarboxylic acid, and phenylpropiolic acid) also produced coloured powdery polymers in the presence of MoCl5-based catalysts.
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