Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 33, Issue 13, Pages 1126-1129Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201200226
Keywords
decomposition; degradation; diacetals; plant oils; polyacetals; polymerization
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Plant oil-derived a,?-diacetals are polycondensated to the novel polyacetals [OCH2O(CH2)y]n (y = 19 and 23) with molecular weight of ca. Mn = 2 x 104 g mol-1. The long methylene sequences provide substantial melt and crystallization temperatures (Tm = 88 degrees C and Tc = 68 degrees C for y = 23), and rates of hydrolytic degradation are dramatically lower for the long-chain polyacetals versus a shorter chain analogue (y = 12) studied for comparison.
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