植物油脂基长链聚缩醛。
Long-chain polyacetals from plant oils.
机构信息
Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, 78464 Konstanz, Germany.
出版信息
Macromol Rapid Commun. 2012 Jul 13;33(13):1126-9. doi: 10.1002/marc.201200226. Epub 2012 May 31.
Plant oil-derived α,ω-diacetals are polycondensated to the novel polyacetals OCH(2) O(CH(2))(y) (y = 19 and 23) with molecular weight of ca. M(n) = 2 × 10(4) g mol(-1). The long methylene sequences provide substantial melt and crystallization temperatures (T(m) = 88 °C and T(c) = 68 °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.
植物油脂衍生的α,ω-二醛通过缩聚反应生成新型聚缩醛OCH(2) O(CH(2))(y)（y = 19 和 23），分子量约为 M(n) = 2 × 10(4) g mol(-1)。长的亚甲基序列提供了较大的熔融和结晶温度（y = 23 时 T(m) = 88°C 和 T(c) = 68°C），与研究的短链类似物（y = 12）相比，长链聚缩醛的水解降解速率显著降低。
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