Acetaldehyde and propionaldehyde have been polymerized at room temperature and pressures of about 10 kb. The infrared spectra of the polymers have been investigated and it is shown that the polymers have the formula HO(CHR•O)nH. The spectra are too complicated to be understood if there is only one monomer unit in the repeating unit of the chain; there are at least two units.
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Novák et al. (1959) studied this question.
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