Cationic Ring-opening Polymerization of 3-Methyl-3-oxetanemethanol

Abstract

Abstract: This work developed the cationic ring opening polymerization of 3-methyl-3-hydroxymethyleneoxetane initiated by BF₃·OEt₂directly. The resulted polymer was easily dissolved in polar solvents such as CH₃OH, C₂H₅OH, DMSO and N-methyl pyrrolidone, but not dissolved in water, tetrahydrofuran and other non-polar solvents. The TGA study of sample 1 indicates that the polymer starts to pyrolyze at 360 ℃. There is a melting endotherm at 125.9 ℃ in the DSCcurve of sample 1, and the melting peak enlarged with decreasing the amount of catalyst added, which means that sample 1 is essentially linear, and with increasing the amount of catalyst the resulted polymer becomes slightly branched.

Key words: 3-Methyl-3-hydroxymethyleneoxetane, Ring-opening polymerization, Characterization

CLC Number:

O631

TrendMD:

HOU Jian, YAN De-Yue, ZHU Xin-Yuan, FANG Ya-Peng . Cationic Ring-opening Polymerization of 3-Methyl-3-oxetanemethanol[J]. Chem. J. Chinese Universities, 1999, 20(11): 1815.

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Cationic Ring-opening Polymerization of 3-Methyl-3-oxetanemethanol

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