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Polymerization of 3,9-dimethyl-1,5,7,11-tetraoxaspiro [5,5] undecane with dithiols

✍ Scribed by Yanming Luo; William J. Bailey

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 594 KB
Volume: 48
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1993.070481012

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✦ Synopsis

New polymers containing spiroorthocarbonate units on the main chain were synthesized and characterized. The polymers were prepared by using redox or free-radical catalysts in solution polymerization of 3,9-dimethylene-l,5,7,11-tetraoxaspiro [ 5,5] undecane [or simply called bimethylenespiroorthocarbonate ( BMSOC ) ] and dithiols at lower temperatures.

Their spiroorthocarbonate units could undergo hydrolysis in acidic conditions at room temperature. The structure of polymers was investigated by nuclear magnetic resonance ('Hand 13C-NMR) and Fourier transform infrared (FTIR) spectroscopy. The kind of dithiols had a remarkable effect on properties of the polymers. Block polymers obtained from BMSOC and dithiols could result in a better combination of properties.

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