| 摘要 |
A process for the polymerization of formaldehyde, comprising contacting formaldehyde in a hydrocarbon solution with an aliphatic anhydride and a quaternary ammonium salt polymerization initiator of the formula: <?in-line-formulae description="In-line Formulae" end="lead"?>R<SUP>1</SUP>R<SUP>2</SUP>R<SUP>3</SUP>R<SUP>4</SUP>N<SUP>+</SUP>X<SUP>-</SUP><?in-line-formulae description="In-line Formulae" end="tail"?> where R<SUP>1 </SUP>is an aliphatic or olefinic hydrocarbon group containing about 18 to about 25 carbon atoms; R<SUP>2</SUP>, R<SUP>3</SUP>, and R<SUP>4 </SUP>are each methyl, ethyl, and/or propyl, such that the total number of carbon atoms in R<SUP>2</SUP>, R<SUP>3</SUP>, and R<SUP>4 </SUP>combined is between 3 and 7; and X<SUP>-</SUP> is an organic anion.
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