Random Copolycarbonates Based on a Renewable Bicyclic Diol Derived from Citric Acid
作者： Xiaohan Liu , Chengcai Pang , Jianbiao Ma , Hui Gao , None
DOI: 10.1021/ACS.MACROMOL.7B01641
关键词: Thermal stability 、 Alicyclic compound 、 Carbon-13 NMR 、 Diol 、 Proton NMR 、 Dimethyl carbonate 、 Bicyclic molecule 、 Organic chemistry 、 Chemistry 、 Cyclopentane
摘要: To address the poor thermal stability of isohexides while at same time retain rigidity, we developed a novel bicyclic diol octahydro-2,5-pentalenediol (OPD) from naturally occurring citric acid in this study. Owing to skeleton composed two fused cyclopentane rings, OPD is supposed have perfect rigidity but higher compared isohexides. Herein, was first converted bis(methyl carbonate) (OPBMC) by reacting with dimethyl carbonate. The absolute stereochemistry OPBMC investigated 2D 1H NMR and 13C as well single crystal X-ray diffraction. By polymerization several aliphatic diols [1,8-octanediol (A8), 1,10-decanediol (A10), 1,12-dodeacnediol (A12)] alicyclic [1,4-cyclohexanedimethanol (CHDM), 1,2,2-trimethylcyclopentane-1,3-dimethanol (TCDM), (OPD)], series bio-based copolycarbonates (co-PCs) intriguing properties were synthesized. spectra reve...
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